{ "collection": "questions", "name": "Direct answers", "description": "Frequently asked EMF questions with short, cited, quotable answers linked to the underlying records.", "count": 36, "dataVersion": "2026.08.1", "lastVerified": "2026-08-12", "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/" }, "records": [ { "id": "questions:what-is-a-safe-milligauss-level", "collection": "questions", "slug": "what-is-a-safe-milligauss-level", "name": "What is a safe milligauss level?", "summary": "ICNIRP's public guideline is 2,000 mG; the epidemiological association starts at 3–4 mG daily average; the building-biology sleeping-area target is under 0.2 mG.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What is a safe level of magnetic field exposure in milligauss?", "answer": "There is no single 'safe' number, because regulatory limits and precautionary targets answer different questions. The highest published value is ICNIRP's 50/60 Hz public reference level of 2,000 mG (200 µT) — a guideline, enforceable only where a jurisdiction adopts it, and the EU still uses the older 1,000 mG (100 µT) figure — both thousands of times above anything found in a normal home. The figure most people are actually looking for is 3–4 mG (0.3–0.4 µT), the daily-average level above which pooled epidemiology found an association — not a demonstrated cause — with childhood leukaemia, and building-biology practice treats under 0.2 mG in a sleeping area as no anomaly. Typical homes measure well below 4 mG away from panels and appliances.", "cluster": "safe-levels", "aliases": [ "safe mG level", "how many milligauss is safe", "safe microtesla level" ], "related": [ "limits:icnirp-2010-public-magnetic-50-60", "limits:who-elf-leukaemia-association", "limits:sbm-2024-magnetic-bands" ] }, "sources": [ { "id": "icnirp-2010", "title": "Guidelines for Limiting Exposure to Time-Varying Electric and Magnetic Fields (1 Hz to 100 kHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/lf-guidelines-2010.html", "year": 2010, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "who-elf", "title": "Electromagnetic fields and public health: exposure to extremely low frequency fields", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/exposure", "year": 2007, "kind": "government", "retrieved": "2026-08-12" }, { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "ahlbom-2000", "title": "A pooled analysis of magnetic fields and childhood leukaemia", "publisher": "British Journal of Cancer", "url": "https://pubmed.ncbi.nlm.nih.gov/10970686/", "year": 2000, "kind": "peer-reviewed", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-a-safe-milligauss-level", "html": "https://emfbase.com/questions/what-is-a-safe-milligauss-level", "markdown": "https://emfbase.com/questions/what-is-a-safe-milligauss-level.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-a-safe-rf-level", "collection": "questions", "slug": "what-is-a-safe-rf-level", "name": "What is a safe RF level in µW/m²?", "summary": "The regulatory public limit is 10,000,000 µW/m² (1 mW/cm², or 10 W/m²); precautionary sleeping-area bands sit below 10 µW/m². Both refer to the same measurement.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What RF power density is considered safe, in µW/m²?", "answer": "The FCC's enforceable public limit above 1.5 GHz is 1 mW/cm², which equals 10,000,000 µW/m² — the occupational limit is five times higher — and ICNIRP's public reference level above 2 GHz is the same figure expressed as 10 W/m². Precautionary frameworks sit far lower: building-biology practice grades a sleeping area under 0.1 µW/m² as no anomaly and above 1,000 µW/m² as extreme, and EUROPAEM proposes night-time targets in the same low range. A typical home a few metres from its own Wi-Fi router measures roughly 100–10,000 µW/m² — thousands of times under the regulatory limit and well above the precautionary bands, which is why the two camps can quote the same measurement and disagree completely.", "cluster": "safe-levels", "aliases": [ "safe µW/m² level", "safe microwatt per square meter", "what RF level is safe" ], "related": [ "limits:fcc-mpe-public-1500-100000", "limits:icnirp-2020-public-2-300ghz", "limits:sbm-2024-rf-no-anomaly", "glossary:power-density-units" ] }, "sources": [ { "id": "fcc-1310", "title": "47 CFR § 1.1310 — Radiofrequency radiation exposure limits", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-1.1310", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "europaem-2016", "title": "EUROPAEM EMF Guideline 2016 for the prevention, diagnosis and treatment of EMF-related health problems", "publisher": "European Academy for Environmental Medicine", "url": "https://europaem.eu/en/library/blog-en/97-europaem-emf-guideline-2016", "year": 2016, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-a-safe-rf-level", "html": "https://emfbase.com/questions/what-is-a-safe-rf-level", "markdown": "https://emfbase.com/questions/what-is-a-safe-rf-level.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:how-far-from-wifi-router", "collection": "questions", "slug": "how-far-from-wifi-router", "name": "How far should you sit from a Wi-Fi router?", "summary": "About 8,000 µW/m² at 1 m for a 100 mW router, 80 µW/m² at 10 m; 2–3 m of separation captures most of the benefit.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "How far away from a Wi-Fi router should I be?", "answer": "For a typical 100 mW access point, free-space power density is roughly 8,000 µW/m² at 1 m, 880 µW/m² at 3 m and 80 µW/m² at 10 m, so most of the available reduction comes from the first few metres. Keeping the router out of bedrooms and more than 2–3 m from where you sit for hours is the practical answer; scheduling the radio off overnight removes night-time exposure entirely. All of these levels are far below the FCC and ICNIRP public limits, and ARPANSA's measurements of Wi-Fi in schools put typical exposures at a small fraction of those limits.", "cluster": "distances", "aliases": [ "safe distance from router", "wifi router distance bedroom" ], "related": [ "emitters:wifi-router", "glossary:inverse-square-law" ] }, "sources": [ { "id": "fcc-part15", "title": "47 CFR Part 15 — Radio Frequency Devices (unlicensed transmitter power limits)", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/part-15", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "arpansa-wifi", "title": "Wi-Fi and health", "publisher": "Australian Radiation Protection and Nuclear Safety Agency", "url": "https://www.arpansa.gov.au/understanding-radiation/radiation-sources/more-radiation-sources/wifi", "kind": "government", "retrieved": "2026-08-12" }, { "id": "itu-fs-relations", "title": "Free-space path loss and power density relations (ITU-R P.525)", "publisher": "International Telecommunication Union", "url": "https://www.itu.int/rec/R-REC-P.525/en", "kind": "standard", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/how-far-from-wifi-router", "html": "https://emfbase.com/questions/how-far-from-wifi-router", "markdown": "https://emfbase.com/questions/how-far-from-wifi-router.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:how-far-should-i-live-from-a-cell-tower", "collection": "questions", "slug": "how-far-should-i-live-from-a-cell-tower", "name": "How far should you live from a cell tower?", "summary": "No authority defines a setback distance; beam geometry dominates, and measured residential levels are hundreds of times below limits. Look up the structure and measure.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What is a safe distance from a cell tower or 5G mast?", "answer": "No health authority specifies a safe setback distance, because exposure depends far more on the antenna's height, azimuth and downtilt than on horizontal distance — levels directly beneath a tower are usually lower than a few hundred metres away, where the main beam reaches the ground. Measured residential exposures near base stations are typically hundreds to thousands of times below regulatory limits, according to ARPANSA and comparable regulators. If you want a defensible answer for a specific property, look the structure up in the FCC ASR database, work out the elevation angle to the antenna, and measure with a directional antenna rather than relying on a distance rule of thumb.", "cluster": "distances", "aliases": [ "safe distance from cell tower", "how close is too close to a 5G tower" ], "related": [ "emitters:macro-cell-tower", "protocols:tower-lookup", "glossary:eirp" ] }, "sources": [ { "id": "arpansa-base-stations", "title": "Mobile phone base stations and health", "publisher": "Australian Radiation Protection and Nuclear Safety Agency", "url": "https://www.arpansa.gov.au/understanding-radiation/radiation-sources/more-radiation-sources/mobile-phone-base-stations", "kind": "government", "retrieved": "2026-08-12" }, { "id": "fcc-oet65", "title": "OET Bulletin 65: Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields", "publisher": "Federal Communications Commission, Office of Engineering and Technology", "url": "https://www.fcc.gov/general/oet-bulletins-line", "year": 1997, "kind": "government", "retrieved": "2026-08-12" }, { "id": "fcc-asr", "title": "Antenna Structure Registration (ASR) public access database downloads", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/wireless/data/public-access-files-database-downloads", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/how-far-should-i-live-from-a-cell-tower", "html": "https://emfbase.com/questions/how-far-should-i-live-from-a-cell-tower", "markdown": "https://emfbase.com/questions/how-far-should-i-live-from-a-cell-tower.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:how-far-should-i-live-from-a-power-line", "collection": "questions", "slug": "how-far-should-i-live-from-a-power-line", "name": "How far should you live from a power line?", "summary": "Fields usually reach background at 30–60 m; precautionary policy targets are 0.4–1 µT, and a 24-hour log beats any distance rule.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What is a safe distance from a high-voltage power line?", "answer": "Magnetic fields beneath a loaded transmission line typically fall from tens of milligauss at the conductors to residential background by roughly 30–60 m, depending on current, conductor height and phase arrangement. No jurisdiction sets a health-based setback; the Netherlands uses a 0.4 µT policy target for new lines and Switzerland applies a 1 µT installation value at sensitive locations, both precautionary rather than effect-based. Because line loading changes hourly, a 24-hour log at the property is worth more than any distance rule.", "cluster": "distances", "aliases": [ "safe distance from power lines", "how close to pylon is safe" ], "related": [ "emitters:transmission-line", "limits:ch-onir-power-lines", "protocols:elf-magnetic-survey" ] }, "sources": [ { "id": "niehs-emf", "title": "Electric and Magnetic Fields", "publisher": "National Institute of Environmental Health Sciences", "url": "https://www.niehs.nih.gov/health/topics/agents/emf", "kind": "government", "retrieved": "2026-08-12" }, { "id": "ch-onir", "title": "Ordinance relating to Protection from Non-Ionising Radiation (ONIR / NISV, SR 814.710)", "publisher": "Swiss Confederation", "url": "https://www.fedlex.admin.ch/eli/cc/2000/38/en", "year": 2000, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "who-elf", "title": "Electromagnetic fields and public health: exposure to extremely low frequency fields", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/exposure", "year": 2007, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/how-far-should-i-live-from-a-power-line", "html": "https://emfbase.com/questions/how-far-should-i-live-from-a-power-line", "markdown": "https://emfbase.com/questions/how-far-should-i-live-from-a-power-line.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:are-smart-meters-dangerous", "collection": "questions", "slug": "are-smart-meters-dangerous", "name": "Are smart meters dangerous?", "summary": "Peak bursts are high but duty cycle is under 1%, so time-averaged exposure is far below limits. Room layout and the utility's own filings are the practical levers.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Do smart meters emit dangerous levels of radiation?", "answer": "Mesh smart meters transmit short bursts at up to 1 W in the 900 MHz band, so a peak-hold meter held next to one can read high while the time-averaged exposure that limits are written against is low, because the duty cycle is typically well under 1%. Measured and calculated exposures at normal distances are far below FCC limits, and no health authority has found harm at these levels. If it concerns you, the effective steps are practical rather than technical: find out what is on the other side of the meter wall, move sleeping positions away from it, ask the utility for the meter's FCC ID and duty-cycle filing, and check whether an opt-out or wired-read option exists in your jurisdiction.", "cluster": "devices", "aliases": [ "smart meter radiation danger", "smart meter opt out" ], "related": [ "emitters:smart-meter", "glossary:duty-cycle", "glossary:averaging-time" ] }, "sources": [ { "id": "fcc-part15", "title": "47 CFR Part 15 — Radio Frequency Devices (unlicensed transmitter power limits)", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/part-15", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "fcc-1310", "title": "47 CFR § 1.1310 — Radiofrequency radiation exposure limits", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-1.1310", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "fcc-eas", "title": "Equipment Authorization Search (FCC ID lookup, includes SAR test reports)", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/oet/ea/fccid", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/are-smart-meters-dangerous", "html": "https://emfbase.com/questions/are-smart-meters-dangerous", "markdown": "https://emfbase.com/questions/are-smart-meters-dangerous.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-sar-and-does-a-low-sar-phone-matter", "collection": "questions", "slug": "what-is-sar-and-does-a-low-sar-phone-matter", "name": "Does a low-SAR phone matter?", "summary": "SAR is a worst-case compliance figure; usage habits change real exposure far more than choosing between compliant models. U.S. 1 g and ICNIRP 10 g values are not comparable.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What is SAR, and should I choose a phone with a lower SAR value?", "answer": "SAR is the RF power absorbed per kilogram of tissue, measured in a phantom with the phone transmitting at maximum power — a worst-case compliance figure, not a description of normal use. Every phone legally sold is already below its limit (1.6 W/kg over 1 g in the U.S., 2 W/kg over 10 g under ICNIRP, and the two numbers are not comparable), so differences between compliant models are small relative to the difference made by how you use the phone. Using speakerphone or wired earphones, and calling where signal is strong, reduces actual absorbed energy far more than picking a model with a lower rated SAR.", "cluster": "devices", "aliases": [ "low SAR phone", "what does SAR mean", "phone SAR safe" ], "related": [ "emitters:smartphone", "protocols:sar-lookup", "glossary:sar" ] }, "sources": [ { "id": "fcc-2-1093", "title": "47 CFR § 2.1093 — Radiofrequency radiation exposure evaluation: portable devices", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-2.1093", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "fcc-eas", "title": "Equipment Authorization Search (FCC ID lookup, includes SAR test reports)", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/oet/ea/fccid", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-sar-and-does-a-low-sar-phone-matter", "html": "https://emfbase.com/questions/what-is-sar-and-does-a-low-sar-phone-matter", "markdown": "https://emfbase.com/questions/what-is-sar-and-does-a-low-sar-phone-matter.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:which-emf-meter-should-i-buy", "collection": "questions", "slug": "which-emf-meter-should-i-buy", "name": "Which EMF meter should I buy?", "summary": "Match the instrument class to the quantity: RF meter, three-axis gaussmeter, E-field/body-voltage kit, or IF meter. Demand stated band, real units, peak-hold and calibration.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What kind of EMF meter do I actually need?", "answer": "It depends entirely on what you are looking for, because no single instrument covers the range: an RF power-density meter for wireless sources, a three-axis gaussmeter for wiring and power lines, an electric-field meter or body-voltage kit for bedroom wiring, and an intermediate-frequency meter for induction hobs, inverters and EVs. Whatever the class, insist on a stated frequency range, a readout in real units rather than a colour scale, peak-hold as well as average mode for RF, and a calibration statement. A cheap meter used outside its band produces confident readings that are simply wrong — the most common failure mode in consumer EMF measurement.", "cluster": "measurement", "aliases": [ "best EMF meter", "what EMF meter to buy", "EMF meter recommendation" ], "related": [ "meters:broadband-rf-meter", "meters:elf-gaussmeter", "meters:intermediate-frequency-meter" ] }, "sources": [ { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/which-emf-meter-should-i-buy", "html": "https://emfbase.com/questions/which-emf-meter-should-i-buy", "markdown": "https://emfbase.com/questions/which-emf-meter-should-i-buy.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:why-do-i-get-a-high-reading-with-everything-switched-off", "collection": "questions", "slug": "why-do-i-get-a-high-reading-with-everything-switched-off", "name": "Why is the reading high with everything switched off?", "summary": "Electric fields exist whenever wiring is energised, so unplug at the socket or fit a demand switch. A magnetic field that stays high everywhere indicates a net-current wiring fault.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Why does my meter still read high when everything is switched off?", "answer": "For an electric-field or body-voltage reading, this is expected: the field exists whenever a conductor is energised, regardless of whether current flows, so wiring in the wall behind the bed and a switched-off-but-plugged-in lamp both still produce it. Unplugging at the socket, or fitting a demand switch on the circuit, removes it — switching off at the appliance does not. If it is a magnetic-field reading that stays elevated everywhere and does not fall off with distance, suspect net current from a shared or crossed neutral, which is a wiring fault for an electrician rather than an EMF mitigation problem.", "cluster": "measurement", "aliases": [ "high EMF reading everything off", "body voltage high with power off" ], "related": [ "emitters:bedroom-wiring-electric-field", "glossary:net-current", "shielding:demand-switch" ] }, "sources": [ { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "niehs-emf", "title": "Electric and Magnetic Fields", "publisher": "National Institute of Environmental Health Sciences", "url": "https://www.niehs.nih.gov/health/topics/agents/emf", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/why-do-i-get-a-high-reading-with-everything-switched-off", "html": "https://emfbase.com/questions/why-do-i-get-a-high-reading-with-everything-switched-off", "markdown": "https://emfbase.com/questions/why-do-i-get-a-high-reading-with-everything-switched-off.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:does-emf-shielding-paint-work", "collection": "questions", "slug": "does-emf-shielding-paint-work", "name": "Does EMF shielding paint work?", "summary": "Yes for RF, 30–40 dB on datasheets, but windows dominate the real path, grounding is mandatory, and it does nothing for magnetic fields.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Does shielding paint actually reduce EMF?", "answer": "Conductive paint genuinely attenuates radiofrequency fields — datasheets quote 30–40 dB for two coats, which is a 99.9% reduction in power density on a flat sample — but installed results are usually much lower because windows, doors and untreated surfaces bypass the coating, and RF typically enters through glass rather than through the wall. It must also be bonded to a grounded conductive strip: ungrounded conductive paint can raise the room's AC electric field. It does nothing at all for power-frequency magnetic fields. Measure before and after at fixed positions, in dB, or you have no way of knowing what you bought.", "cluster": "shielding", "aliases": [ "shielding paint effective", "EMF paint work", "carbon paint EMF" ], "related": [ "shielding:paint", "shielding:window-film", "protocols:shielding-verification" ] }, "sources": [ { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/does-emf-shielding-paint-work", "html": "https://emfbase.com/questions/does-emf-shielding-paint-work", "markdown": "https://emfbase.com/questions/does-emf-shielding-paint-work.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:can-you-shield-magnetic-fields", "collection": "questions", "slug": "can-you-shield-magnetic-fields", "name": "Can you shield a magnetic field?", "summary": "Almost no common material blocks ELF magnetic fields; mu-metal gives a factor of 2–5 at high cost. Distance and source correction are the real options.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Can I shield magnetic fields from power lines or wiring?", "answer": "Barely, and rarely economically. Power-frequency magnetic fields pass through nearly all common building materials, including aluminium foil, conductive paint and shielding fabric, so the only materials that help are high-permeability alloys such as mu-metal, which typically deliver a factor of two to five in a real retrofit and lose their properties if bent or drilled. The effective interventions are distance and fixing the source — correcting a net-current wiring fault, relocating a bed away from the service panel, or reducing the current causing the field.", "cluster": "shielding", "aliases": [ "block magnetic field", "mu metal shielding", "shield power line EMF" ], "related": [ "shielding:high-permeability-alloy", "emitters:transmission-line", "glossary:net-current" ] }, "sources": [ { "id": "niehs-emf", "title": "Electric and Magnetic Fields", "publisher": "National Institute of Environmental Health Sciences", "url": "https://www.niehs.nih.gov/health/topics/agents/emf", "kind": "government", "retrieved": "2026-08-12" }, { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/can-you-shield-magnetic-fields", "html": "https://emfbase.com/questions/can-you-shield-magnetic-fields", "markdown": "https://emfbase.com/questions/can-you-shield-magnetic-fields.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:do-emf-protection-devices-work", "collection": "questions", "slug": "do-emf-protection-devices-work", "name": "Do EMF protection stickers, pendants and harmonisers work?", "summary": "No — nothing passive of that kind changes a meter reading, and a phone sticker that did block signal would make the phone transmit harder.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Do EMF harmonisers, stickers, pendants or 'scalar' devices reduce exposure?", "answer": "No. There is no mechanism by which a passive sticker, pendant, crystal or plug-in 'harmoniser' can reduce field strength, and none of them changes a meter reading — which is exactly the test to demand before buying one. Phone stickers claiming to block radiation cannot do so without degrading the antenna, in which case the handset raises transmit power to compensate. Interventions that do change a measurement are distance, turning transmitters off, wired connections, grounded conductive materials for RF and electric fields, and correcting wiring faults.", "cluster": "shielding", "aliases": [ "EMF harmonizer scam", "do EMF stickers work", "EMF protection pendant" ], "related": [ "protocols:shielding-verification", "shielding:wired-conversion" ] }, "sources": [ { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "fcc-rf-safety", "title": "Radio Frequency Safety", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/general/radio-frequency-safety-0", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/do-emf-protection-devices-work", "html": "https://emfbase.com/questions/do-emf-protection-devices-work", "markdown": "https://emfbase.com/questions/do-emf-protection-devices-work.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:is-emf-sensitivity-real", "collection": "questions", "slug": "is-emf-sensitivity-real", "name": "Is EMF sensitivity (EHS) real?", "summary": "Symptoms are recognised as genuine; blinded studies have not linked them to field exposure. WHO recommends evaluating the symptoms clinically.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Is electromagnetic hypersensitivity a real condition?", "answer": "The symptoms are real and can be disabling — WHO states this explicitly — but blinded provocation studies have not shown that affected individuals can detect whether a field is present, or that their symptoms track actual exposure. WHO therefore describes the condition as idiopathic environmental intolerance attributed to EMF and recommends clinical evaluation of the symptoms themselves rather than assuming a cause. This site records that position and links the primary literature; it does not give medical advice, and anyone with persistent symptoms should see a clinician.", "cluster": "health", "aliases": [ "electrosensitivity real", "EHS condition", "am I EMF sensitive" ], "related": [ "studies:who-ehs-2005", "glossary:ehs" ] }, "sources": [ { "id": "who-ehs", "title": "Electromagnetic hypersensitivity (WHO backgrounder, December 2005; formerly Fact sheet 296)", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/hypersensitivity", "year": 2005, "kind": "government", "retrieved": "2026-08-12" }, { "id": "europaem-2016", "title": "EUROPAEM EMF Guideline 2016 for the prevention, diagnosis and treatment of EMF-related health problems", "publisher": "European Academy for Environmental Medicine", "url": "https://europaem.eu/en/library/blog-en/97-europaem-emf-guideline-2016", "year": 2016, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/is-emf-sensitivity-real", "html": "https://emfbase.com/questions/is-emf-sensitivity-real", "markdown": "https://emfbase.com/questions/is-emf-sensitivity-real.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:does-emf-cause-cancer", "collection": "questions", "slug": "does-emf-cause-cancer", "name": "Does EMF cause cancer?", "summary": "Not established. Both RF and ELF are IARC Group 2B on limited evidence; animal studies found rare tumours, and the 2024 WHO human review found no association.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Is there evidence that EMF exposure causes cancer?", "answer": "Not established, and the evidence points in different directions depending on which field and which study you look at. IARC classifies both RF fields (2011) and ELF magnetic fields (2002) as Group 2B, 'possibly carcinogenic' — a statement about limited evidence, not about the size of any risk. The NTP and Ramazzini animal studies found rare heart tumours in male rats, while the 2024 WHO-commissioned systematic review of human studies found no association between mobile phone use and brain or head-and-neck cancers, including for long-term heavy users. This site lists each study with what it found and what it can and cannot establish, rather than resolving the dispute.", "cluster": "health", "aliases": [ "EMF cancer risk", "does wifi cause cancer", "5G cancer" ], "related": [ "studies:iarc-2b-rf-2011", "studies:ntp-2018", "studies:who-rf-review-2024", "glossary:group-2b" ] }, "sources": [ { "id": "iarc-2b-rf", "title": "IARC classifies radiofrequency electromagnetic fields as possibly carcinogenic to humans (Group 2B), Press Release N° 208", "publisher": "International Agency for Research on Cancer", "url": "https://www.iarc.who.int/wp-content/uploads/2018/07/pr208_E.pdf", "year": 2011, "kind": "government", "retrieved": "2026-08-12" }, { "id": "iarc-monograph-80", "title": "IARC Monographs Volume 80: Non-Ionizing Radiation, Part 1: Static and Extremely Low-Frequency Electric and Magnetic Fields", "publisher": "International Agency for Research on Cancer", "url": "https://publications.iarc.who.int/98", "year": 2002, "kind": "peer-reviewed", "retrieved": "2026-08-12" }, { "id": "ntp-cellphone", "title": "Cell Phone Radiofrequency Radiation Studies", "publisher": "National Toxicology Program, U.S. NIEHS", "url": "https://ntp.niehs.nih.gov/whatwestudy/topics/cellphones", "kind": "government", "retrieved": "2026-08-12" }, { "id": "who-rf-review-2024", "title": "The effect of exposure to radiofrequency fields on cancer risk in the general and working population: a systematic review of human observational studies", "publisher": "Environment International (WHO-commissioned systematic review)", "url": "https://www.sciencedirect.com/science/article/pii/S0160412024005531", "year": 2024, "kind": "peer-reviewed", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/does-emf-cause-cancer", "html": "https://emfbase.com/questions/does-emf-cause-cancer", "markdown": "https://emfbase.com/questions/does-emf-cause-cancer.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:is-5g-more-dangerous-than-4g", "collection": "questions", "slug": "is-5g-more-dangerous-than-4g", "name": "Is 5G more dangerous than 4G?", "summary": "Same type of radiation and same limits; the difference is denser nodes and beamforming. Measured levels are below limits, but the mmWave literature is thinner.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Does 5G expose people to more radiation than 4G?", "answer": "5G uses the same kind of non-ionizing radiofrequency energy as 4G and remains subject to the same exposure limits, so the change is in deployment pattern rather than in kind: more, lower-power nodes closer to users, plus beamforming that points energy at active devices instead of radiating uniformly. Higher mmWave bands penetrate walls and skin far less than the mid-band frequencies that carry most 5G traffic. Measurement surveys of deployed 5G to date report levels well below regulatory limits, though the research record on beamformed mmWave exposure is thinner than for earlier generations, which is a genuine gap rather than a finding of harm.", "cluster": "health", "aliases": [ "5G danger", "5G vs 4G radiation", "is 5G safe" ], "related": [ "emitters:5g-small-cell", "glossary:beamforming", "studies:who-rf-review-2024" ] }, "sources": [ { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "arpansa-base-stations", "title": "Mobile phone base stations and health", "publisher": "Australian Radiation Protection and Nuclear Safety Agency", "url": "https://www.arpansa.gov.au/understanding-radiation/radiation-sources/more-radiation-sources/mobile-phone-base-stations", "kind": "government", "retrieved": "2026-08-12" }, { "id": "fcc-oet65", "title": "OET Bulletin 65: Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields", "publisher": "Federal Communications Commission, Office of Engineering and Technology", "url": "https://www.fcc.gov/general/oet-bulletins-line", "year": 1997, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/is-5g-more-dangerous-than-4g", "html": "https://emfbase.com/questions/is-5g-more-dangerous-than-4g", "markdown": "https://emfbase.com/questions/is-5g-more-dangerous-than-4g.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:why-do-fcc-and-icnirp-limits-differ", "collection": "questions", "slug": "why-do-fcc-and-icnirp-limits-differ", "name": "Why do FCC and ICNIRP limits differ?", "summary": "Same thermal basis, different units, averaging masses and breakpoints; some countries add precautionary layers such as Switzerland's installation values.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Why are U.S. and European EMF limits different numbers?", "answer": "They are built on the same thermal basis but use different units, averaging masses and frequency breakpoints. The FCC expresses public RF limits in mW/cm² and averages SAR over 1 gram of tissue; ICNIRP expresses reference levels in W/m² and averages local SAR over 10 grams, so a phone's published SAR differs between regions without any difference in the device. Some countries then add precautionary layers on top — Switzerland's installation limit values are roughly a tenth of ICNIRP's reference levels in field-strength terms — which is a policy choice, not a different reading of the science.", "cluster": "regulation", "aliases": [ "FCC vs ICNIRP", "why are EMF limits different by country" ], "related": [ "standards:fcc-mpe", "standards:icnirp-2020", "glossary:reference-level" ] }, "sources": [ { "id": "fcc-1310", "title": "47 CFR § 1.1310 — Radiofrequency radiation exposure limits", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-1.1310", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "ch-onir", "title": "Ordinance relating to Protection from Non-Ionising Radiation (ONIR / NISV, SR 814.710)", "publisher": "Swiss Confederation", "url": "https://www.fedlex.admin.ch/eli/cc/2000/38/en", "year": 2000, "kind": "regulation", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/why-do-fcc-and-icnirp-limits-differ", "html": "https://emfbase.com/questions/why-do-fcc-and-icnirp-limits-differ", "markdown": "https://emfbase.com/questions/why-do-fcc-and-icnirp-limits-differ.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:can-i-refuse-a-cell-tower-or-smart-meter", "collection": "questions", "slug": "can-i-refuse-a-cell-tower-or-smart-meter", "name": "Can you object to a tower or refuse a smart meter?", "summary": "U.S. law bars local RF-emission objections to compliant facilities; planning grounds remain. Smart-meter opt-outs exist at state/utility level, often for a fee.", "status": "provisional", "lastVerified": "2026-08-12", "data": { "question": "Can I block a cell tower near my home, or refuse a smart meter?", "answer": "In the United States, Section 704 of the Telecommunications Act bars state and local authorities from denying a wireless facility on the basis of RF emissions where it complies with FCC limits, so objections have to run on planning grounds — siting, height, appearance, procedure — rather than health. Smart-meter opt-outs are set by state and utility, not federal rule: many U.S. utilities offer a non-communicating or manually-read meter, often for a fee, and availability elsewhere varies by country. Practical route: check the FCC ASR record for the structure, read your utility's tariff for an opt-out provision, and engage the planning process on procedural grounds.", "cluster": "regulation", "aliases": [ "stop cell tower construction", "smart meter opt out rights", "Section 704" ], "related": [ "emitters:macro-cell-tower", "emitters:smart-meter", "protocols:tower-lookup" ] }, "sources": [ { "id": "fcc-rf-safety", "title": "Radio Frequency Safety", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/general/radio-frequency-safety-0", "kind": "government", "retrieved": "2026-08-12" }, { "id": "fcc-asr", "title": "Antenna Structure Registration (ASR) public access database downloads", "publisher": "Federal Communications Commission", "url": "https://www.fcc.gov/wireless/data/public-access-files-database-downloads", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/can-i-refuse-a-cell-tower-or-smart-meter", "html": "https://emfbase.com/questions/can-i-refuse-a-cell-tower-or-smart-meter", "markdown": "https://emfbase.com/questions/can-i-refuse-a-cell-tower-or-smart-meter.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:how-do-i-convert-mg-to-microtesla", "collection": "questions", "slug": "how-do-i-convert-mg-to-microtesla", "name": "How do you convert mG to µT and µW/m² to V/m?", "summary": "1 µT = 10 mG exactly; S = E²/377 in the far field, so 6 V/m ≈ 95,500 µW/m². Neither applies in the near field.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "How do I convert between EMF units?", "answer": "For magnetic fields the conversion is exact: 1 µT = 10 mG, so 0.4 µT = 4 mG. For radiofrequency in the far field, power density and electric field strength are linked by the impedance of free space: S (W/m²) = E² / 377, and E (V/m) = √(S × 377) — so 6 V/m is about 95,500 µW/m², and 1 V/m is about 2,653 µW/m². Note that this RF relationship holds only in the far field, roughly beyond one wavelength from the source, and never for near-field exposure such as a phone against the head, which is assessed as SAR instead.", "cluster": "measurement", "aliases": [ "mG to µT", "V/m to µW/m²", "EMF unit conversion" ], "related": [ "quantities:power-density", "quantities:magnetic-flux-density", "glossary:far-field" ] }, "sources": [ { "id": "nist-si", "title": "The International System of Units (SI), NIST Special Publication 330", "publisher": "National Institute of Standards and Technology", "url": "https://www.nist.gov/pml/special-publication-330", "kind": "government", "retrieved": "2026-08-12" }, { "id": "itu-fs-relations", "title": "Free-space path loss and power density relations (ITU-R P.525)", "publisher": "International Telecommunication Union", "url": "https://www.itu.int/rec/R-REC-P.525/en", "kind": "standard", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/how-do-i-convert-mg-to-microtesla", "html": "https://emfbase.com/questions/how-do-i-convert-mg-to-microtesla", "markdown": "https://emfbase.com/questions/how-do-i-convert-mg-to-microtesla.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-should-i-measure-first", "collection": "questions", "slug": "what-should-i-measure-first", "name": "Where should you start measuring?", "summary": "Measure all four quantities at the sleeping position first, then fix the largest measured contributor one change at a time. The best interventions are usually free.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "I want to reduce EMF at home — what do I do first?", "answer": "Measure before buying anything: the most common expensive mistake is shielding a wall while the dominant source is a router in the same room. Survey the sleeping area for all four quantities — RF power density, AC magnetic field, AC electric field and body voltage — grade each against its own band, then fix whichever sits furthest into its band, one change at a time, re-measuring after each. In most homes the largest reductions come from free actions: relocating or scheduling the router, replacing a legacy DECT base, unplugging bedside devices at the socket, and moving a bed away from the service-panel wall.", "cluster": "measurement", "aliases": [ "reduce EMF at home", "EMF survey where to start" ], "related": [ "protocols:sleeping-area-assessment", "protocols:rf-room-survey", "protocols:elf-magnetic-survey" ] }, "sources": [ { "id": "sbm-2024", "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)", "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)", "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf", "year": 2024, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-should-i-measure-first", "html": "https://emfbase.com/questions/what-should-i-measure-first", "markdown": "https://emfbase.com/questions/what-should-i-measure-first.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:are-emf-limits-based-only-on-heating", "collection": "questions", "slug": "are-emf-limits-based-only-on-heating", "name": "Are exposure limits based only on heating?", "summary": "Yes: limits derive from thermal and nerve-stimulation thresholds divided by a safety factor. Whether sub-thermal effects exist is the open dispute.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Is it true that RF exposure limits only protect against heating?", "answer": "Substantially yes, and that is the crux of the dispute. ICNIRP and FCC limits are derived from the exposure at which established effects occur — tissue heating above about 100 kHz, nerve stimulation below it — then divided by a safety factor, typically 50 for the general public. ICNIRP's position is that no effect below the thermal threshold has been demonstrated consistently enough to base a limit on; precautionary frameworks such as BioInitiative and EUROPAEM assume such effects exist and propose targets orders of magnitude lower. This site labels every value as regulatory, guideline or precautionary so you can see which assumption a number rests on.", "cluster": "safe-levels", "aliases": [ "thermal only limits", "are EMF limits outdated", "non thermal effects limits" ], "related": [ "glossary:thermal-effect", "glossary:non-thermal-effect", "glossary:precautionary-principle" ] }, "sources": [ { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "fcc-1310", "title": "47 CFR § 1.1310 — Radiofrequency radiation exposure limits", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-1.1310", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "bioinitiative-2012", "title": "BioInitiative Report 2012 (updated) — conclusions and recommended precautionary levels", "publisher": "BioInitiative Working Group", "url": "https://bioinitiative.org/conclusions/", "year": 2012, "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "europaem-2016", "title": "EUROPAEM EMF Guideline 2016 for the prevention, diagnosis and treatment of EMF-related health problems", "publisher": "European Academy for Environmental Medicine", "url": "https://europaem.eu/en/library/blog-en/97-europaem-emf-guideline-2016", "year": 2016, "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/are-emf-limits-based-only-on-heating", "html": "https://emfbase.com/questions/are-emf-limits-based-only-on-heating", "markdown": "https://emfbase.com/questions/are-emf-limits-based-only-on-heating.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:which-countries-have-the-strictest-emf-limits", "collection": "questions", "slug": "which-countries-have-the-strictest-emf-limits", "name": "Which countries have the strictest EMF limits?", "summary": "Russia (0.1 W/m²), China (0.4 W/m²), India (1/10th of ICNIRP), Italy (15 V/m) and Switzerland are the strictest; the U.S., EU, UK, Canada and Australia sit near 10 W/m².", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Which countries have the strictest RF exposure limits, and how much stricter are they?", "answer": "For public RF exposure in the mobile bands, Russia is the strictest of the large jurisdictions at 10 µW/cm² (0.1 W/m²) from 300 MHz to 300 GHz, followed by China at 0.4 W/m² below 3 GHz, India at one tenth of the ICNIRP figure for base stations (0.9 W/m² at 1800 MHz), Italy at a 15 V/m attention value, and Switzerland, whose installation limit value applies per installation at sensitive locations. The U.S. FCC limit of 10 W/m² above 1.5 GHz and the ICNIRP-derived limits used across the EU, UK, Canada and Australia sit at the top of that range — up to a hundred times higher than Russia's. Stricter numbers do not imply the higher ones are unsafe: the low limits are policy choices about margin, and none of the frameworks disagree about where established effects begin.", "cluster": "regulation", "aliases": [ "strictest EMF limits by country", "which country has the lowest EMF limit", "EMF limits comparison by country" ], "related": [ "limits:russia-public-300mhz-300ghz", "limits:china-public-30-3000", "limits:india-public-400-2000", "limits:italy-attention-value-15vm", "limits:ch-onir-installation-mobile" ] }, "sources": [ { "id": "russia-sanpin-1383", "title": "СанПиН 2.1.8/2.2.4.1383-03, приложение 1, таблица 2 — ПДУ ЭМП 30 кГц–300 ГГц для населения", "publisher": "Главный государственный санитарный врач РФ (via ConsultantPlus)", "url": "https://www.consultant.ru/document/cons_doc_LAW_43243/b80f2a134eb7436dbdb5ff9efd13bd96e1a2e452/", "year": 2003, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "china-gb-8702", "title": "GB 8702-2014 电磁环境控制限值 (Controlling limits for electromagnetic environment)", "publisher": "Ministry of Ecology and Environment of the People's Republic of China", "url": "https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/hxxhj/dcfsbz/201410/t20141022_290449.htm", "year": 2014, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "india-tarang-norms", "title": "EMF radiation norms (Tarang Sanchar portal)", "publisher": "Department of Telecommunications, Government of India", "url": "https://tarangsanchar.gov.in/EMFPortalHi/DoT/EMFRadiationNorms", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "italy-mimit-15vm", "title": "Adeguamento dei limiti dei campi elettromagnetici (15 V/m)", "publisher": "Ministero delle Imprese e del Made in Italy", "url": "https://www.mimit.gov.it/it/notizie-stampa/adeguamento-dei-limiti-dei-campi-elettromagnetici", "year": 2024, "kind": "government", "retrieved": "2026-08-12" }, { "id": "ch-onir", "title": "Ordinance relating to Protection from Non-Ionising Radiation (ONIR / NISV, SR 814.710)", "publisher": "Swiss Confederation", "url": "https://www.fedlex.admin.ch/eli/cc/2000/38/en", "year": 2000, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "fcc-1310", "title": "47 CFR § 1.1310 — Radiofrequency radiation exposure limits", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-1.1310", "kind": "regulation", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/which-countries-have-the-strictest-emf-limits", "html": "https://emfbase.com/questions/which-countries-have-the-strictest-emf-limits", "markdown": "https://emfbase.com/questions/which-countries-have-the-strictest-emf-limits.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-the-emf-limit-in-canada", "collection": "questions", "slug": "what-is-the-emf-limit-in-canada", "name": "What is the EMF exposure limit in Canada?", "summary": "Safety Code 6 allows 4.56 W/m² at 1900 MHz and 5.42 W/m² at 2450 MHz for the public, with 0.08 W/kg whole-body and 1.6 W/kg local SAR restrictions.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What are Canada's RF exposure limits under Safety Code 6?", "answer": "Health Canada's Safety Code 6 (2015) sets uncontrolled-environment reference levels of 0.02619 f^0.6834 W/m² with frequency f in MHz, which works out to 4.56 W/m² at 1900 MHz and 5.42 W/m² at 2450 MHz, rising to a flat 10 W/m² above 6 GHz. The underlying basic restrictions are 0.08 W/kg whole-body SAR and 1.6 W/kg peak spatially-averaged for head, neck and trunk — the same headline SAR figure as the United States. Safety Code 6 is issued as a guideline, but Innovation, Science and Economic Development Canada adopts it for equipment certification, so in practice phones, base stations and broadcast antennas must comply.", "cluster": "regulation", "aliases": [ "Safety Code 6 limits", "Canada RF exposure limit", "Canadian EMF limit" ], "related": [ "standards:hc-safety-code-6", "limits:sc6-public-300-6000", "limits:sc6-sar-basic-restriction", "organizations:health-canada" ] }, "sources": [ { "id": "hc-safety-code-6", "title": "Limits of Human Exposure to Radiofrequency Electromagnetic Energy in the Frequency Range from 3 kHz to 300 GHz (Safety Code 6)", "publisher": "Health Canada", "url": "https://www.canada.ca/en/health-canada/services/publications/health-risks-safety/limits-human-exposure-radiofrequency-electromagnetic-energy-range-3-300.html", "year": 2015, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "hc-safety-code-6-pdf", "title": "Safety Code 6 (2015), H129-48/2015E-PDF — official PDF edition", "publisher": "Government of Canada Publications", "url": "https://publications.gc.ca/collections/collection_2016/sc-hc/H129-48-2015-eng.pdf", "year": 2015, "kind": "guideline", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-the-emf-limit-in-canada", "html": "https://emfbase.com/questions/what-is-the-emf-limit-in-canada", "markdown": "https://emfbase.com/questions/what-is-the-emf-limit-in-canada.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-the-emf-limit-in-the-uk", "collection": "questions", "slug": "what-is-the-emf-limit-in-the-uk", "name": "What is the EMF limit in the UK?", "summary": "The UK enforces the ICNIRP public limits (10 W/m² above 2 GHz) through Ofcom's EMF licence condition, in force since 2021.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What EMF exposure limits apply in the United Kingdom, and who enforces them?", "answer": "The UK has no numeric limit of its own: it applies the ICNIRP general-public limits, which are 10 W/m² incident power density above 2 GHz and 61 V/m in the mid-band. Since 2021 Ofcom has attached an EMF licence condition to most spectrum licences requiring compliance with those limits, for licensees authorised to transmit above 10 W EIRP (6.1 W ERP), and can enforce against a breach. The condition protects members of the public; workers and the licensee's own staff fall under separate occupational rules.", "cluster": "regulation", "aliases": [ "UK EMF limits", "Ofcom EMF rules", "who enforces EMF limits in the UK" ], "related": [ "standards:ofcom-emf-condition", "limits:ofcom-public-2-300ghz", "organizations:ofcom" ] }, "sources": [ { "id": "ofcom-emf-policy", "title": "Ofcom's rules on EMF exposure (EMF licence condition)", "publisher": "Ofcom", "url": "https://www.ofcom.org.uk/spectrum/electromagnetic-fields/policy", "year": 2021, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "ofcom-emf-guidance", "title": "Guidance on EMF compliance and enforcement", "publisher": "Ofcom", "url": "https://www.ofcom.org.uk/spectrum/electromagnetic-fields/compliance-and-enforcement-guidance", "year": 2021, "kind": "government", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-the-emf-limit-in-the-uk", "html": "https://emfbase.com/questions/what-is-the-emf-limit-in-the-uk", "markdown": "https://emfbase.com/questions/what-is-the-emf-limit-in-the-uk.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-the-emf-limit-in-australia", "collection": "questions", "slug": "what-is-the-emf-limit-in-australia", "name": "What is the EMF limit in Australia?", "summary": "ARPANSA RPS S-1 (2021) adopts ICNIRP 2020 — 10 W/m² for the public above 2 GHz — enforced via licence conditions and the ACMA device standard.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What are Australia's RF exposure limits, and are they legally binding?", "answer": "Australia applies ARPANSA's RPS S-1 (Rev. 1, 2021), which adopts the ICNIRP 2020 limits — 10 W/m² public incident power density above 2 GHz, with SAR-based basic restrictions below 6 GHz. It replaced RPS 3 (2002), which was based on ICNIRP 1998. The limits bite in two ways: RPS S-1 is in force as a licence condition for ARPANSA licence holders, and the ACMA's Radiocommunications (Electromagnetic Radiation — Human Exposure) Standard requires devices supplied in Australia to keep users within the ARPANSA basic restrictions.", "cluster": "regulation", "aliases": [ "ARPANSA limits", "Australia EME standard", "RPS S-1 limits" ], "related": [ "standards:arpansa-rps-s1", "limits:arpansa-public-2-300ghz", "organizations:arpansa" ] }, "sources": [ { "id": "arpansa-rps-s1", "title": "Standard for Limiting Exposure to Radiofrequency Fields — 100 kHz to 300 GHz, RPS S-1 (Rev. 1)", "publisher": "Australian Radiation Protection and Nuclear Safety Agency", "url": "https://www.arpansa.gov.au/regulation-and-licensing/regulatory-publications/radiation-protection-series/codes-and-standards/rpss-1", "year": 2021, "kind": "standard", "retrieved": "2026-08-12" }, { "id": "acma-eme-standard", "title": "Radiocommunications (Electromagnetic Radiation — Human Exposure) Standard 2014", "publisher": "Australian Communications and Media Authority (Federal Register of Legislation)", "url": "https://www.legislation.gov.au/F2014L00960/asmade/2014-07-07/text/original/epub/OEBPS/document_1/document_1.html", "year": 2014, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-the-emf-limit-in-australia", "html": "https://emfbase.com/questions/what-is-the-emf-limit-in-australia", "markdown": "https://emfbase.com/questions/what-is-the-emf-limit-in-australia.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:why-are-indias-tower-limits-ten-times-stricter", "collection": "questions", "slug": "why-are-indias-tower-limits-ten-times-stricter", "name": "Why are India's tower limits 10 times stricter?", "summary": "A 2012 precautionary policy decision cut India's base-station limits to one tenth of ICNIRP: 0.45 W/m² at 900 MHz, 0.9 at 1800, 1 W/m² above 2 GHz. Handset SAR is unchanged.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Why does India apply one tenth of the ICNIRP limits to mobile towers?", "answer": "India adopted the ICNIRP levels in 2008 and then, on the recommendation of an inter-ministerial committee, cut the base-station allowance to one tenth of them with effect from 1 September 2012 — a precautionary policy decision, not a finding that the ICNIRP levels are unsafe. The resulting limits are 0.45 W/m² at 900 MHz, 0.9 W/m² at 1800 MHz and 1 W/m² at 2100 MHz and above. The reduction applies to base-station emissions only: handsets are still certified against the 1.6 W/kg SAR limit over 1 g, and compliance is enforced through licence conditions, operator self-certification and DoT field audits with penalties.", "cluster": "regulation", "aliases": [ "India 1/10 ICNIRP", "India mobile tower radiation limit", "Tarang Sanchar limits" ], "related": [ "standards:india-dot-emf", "limits:india-public-400-2000", "limits:india-public-2-300ghz", "organizations:india-dot" ] }, "sources": [ { "id": "india-tarang-norms", "title": "EMF radiation norms (Tarang Sanchar portal)", "publisher": "Department of Telecommunications, Government of India", "url": "https://tarangsanchar.gov.in/EMFPortalHi/DoT/EMFRadiationNorms", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "india-dgt-emf", "title": "Public awareness — EMF exposure limits from mobile towers", "publisher": "Directorate General of Telecommunications, Government of India", "url": "https://dgtelecom.gov.in/public-awareness/", "year": 2013, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/why-are-indias-tower-limits-ten-times-stricter", "html": "https://emfbase.com/questions/why-are-indias-tower-limits-ten-times-stricter", "markdown": "https://emfbase.com/questions/why-are-indias-tower-limits-ten-times-stricter.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:did-italy-raise-its-emf-limit-to-15-v-m", "collection": "questions", "slug": "did-italy-raise-its-emf-limit-to-15-v-m", "name": "Did Italy raise its EMF limit from 6 to 15 V/m?", "summary": "Yes — the attention value and quality objective went from 6 V/m to 15 V/m on 30 April 2024 under Law 214/2023; the 20 V/m exposure limit is unchanged.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Is Italy's EMF limit still 6 V/m, or has it been raised to 15 V/m?", "answer": "It was raised. Article 10 of Law 214/2023 increased Italy's attention value and quality objective from 6 V/m to 15 V/m with effect from 30 April 2024, pending alignment with the European limits; the ministry framed it as the level needed to run 5G on the existing grid of base stations while staying below the 60 V/m EU reference level. The separate exposure limit under DPCM 8 July 2003 — 20 V/m in the 3 MHz–3 GHz band — was not changed. Any page still quoting 6 V/m as Italy's current figure is out of date, and regional ARPA agencies have increased monitoring since the change.", "cluster": "regulation", "aliases": [ "Italy 15 V/m", "Italy 6 V/m limit", "Italy EMF limit change 2024" ], "related": [ "standards:italy-dpcm-2003", "limits:italy-attention-value-15vm", "limits:italy-exposure-limit-20vm", "glossary:attention-value" ] }, "sources": [ { "id": "italy-mimit-15vm", "title": "Adeguamento dei limiti dei campi elettromagnetici (15 V/m)", "publisher": "Ministero delle Imprese e del Made in Italy", "url": "https://www.mimit.gov.it/it/notizie-stampa/adeguamento-dei-limiti-dei-campi-elettromagnetici", "year": 2024, "kind": "government", "retrieved": "2026-08-12" }, { "id": "italy-arpa-piemonte-15vm", "title": "Aumentano i controlli di Arpa in seguito all'aumento dei limiti di campo elettromagnetico", "publisher": "Arpa Piemonte", "url": "https://www.arpa.piemonte.it/notizia/aumentano-controlli-arpa-seguito-allaumento-dei-limiti-campo-elettromagnetico-per", "year": 2024, "kind": "government", "retrieved": "2026-08-12" }, { "id": "italy-dpcm-2003", "title": "DPCM 8 luglio 2003 — limiti di esposizione, valori di attenzione e obiettivi di qualità, 100 kHz–300 GHz", "publisher": "Presidenza del Consiglio dei Ministri (Gazzetta Ufficiale n. 199/2003)", "url": "https://corecom.consrc.it/hp2/doc/D.P.C.M.8_luglio2003.pdf", "year": 2003, "kind": "regulation", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/did-italy-raise-its-emf-limit-to-15-v-m", "html": "https://emfbase.com/questions/did-italy-raise-its-emf-limit-to-15-v-m", "markdown": "https://emfbase.com/questions/did-italy-raise-its-emf-limit-to-15-v-m.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-the-emf-limit-in-china", "collection": "questions", "slug": "what-is-the-emf-limit-in-china", "name": "What is the EMF limit in China?", "summary": "GB 8702-2014 allows 0.4 W/m² (12 V/m) below 3 GHz, f/7500 W/m² from 3–15 GHz, and 100 µT / 4 kV/m at 50 Hz — for environmental exposure, not your own devices.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "What public exposure limits does China's GB 8702-2014 set?", "answer": "GB 8702-2014 caps public exposure at 12 V/m (0.4 W/m²) from 30 MHz to 3000 MHz, f/7500 W/m² from 3 to 15 GHz — 0.47 W/m² at 3.5 GHz — and 27 V/m (2 W/m²) from 15 to 300 GHz, all as RMS values over any continuous six minutes. At power frequency the limits are 100 µT and 4 kV/m, with 10 kV/m permitted on farmland and roads under overhead transmission lines. The standard governs environmental exposure from installations; it explicitly does not regulate what your own phone or household appliances expose you to.", "cluster": "regulation", "aliases": [ "GB 8702-2014 limits", "China EMF limit", "China 5G radiation limit" ], "related": [ "standards:china-gb-8702", "limits:china-public-30-3000", "limits:china-public-magnetic-50hz", "organizations:china-mee" ] }, "sources": [ { "id": "china-gb-8702", "title": "GB 8702-2014 电磁环境控制限值 (Controlling limits for electromagnetic environment)", "publisher": "Ministry of Ecology and Environment of the People's Republic of China", "url": "https://www.mee.gov.cn/ywgz/fgbz/bz/bzwb/hxxhj/dcfsbz/201410/t20141022_290449.htm", "year": 2014, "kind": "regulation", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-the-emf-limit-in-china", "html": "https://emfbase.com/questions/what-is-the-emf-limit-in-china", "markdown": "https://emfbase.com/questions/what-is-the-emf-limit-in-china.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-is-russias-10-microwatt-limit", "collection": "questions", "slug": "what-is-russias-10-microwatt-limit", "name": "What is Russia's 10 µW/cm² limit?", "summary": "Russia's public limit is 10 µW/cm² = 0.1 W/m² = 100,000 µW/m² from 300 MHz to 300 GHz, roughly a hundredth of the ICNIRP reference level.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Why is Russia's EMF limit 10 µW/cm², and what does that equal in other units?", "answer": "Russian sanitary norms (SanPiN) cap public exposure at 10 µW/cm² of time-averaged power flux density from 300 MHz to 300 GHz, which equals 0.1 W/m² or 100,000 µW/m² — about a hundredth of the ICNIRP public reference level — with 3 V/m applying from 30 to 300 MHz. The Soviet-era derivation used long-term exposure endpoints rather than the acute thermal threshold ICNIRP works from, which is why the figure is so much lower; it is frequently cited in campaign material as proof that Western limits are too high. It applies in residential areas, places of mass recreation and inside dwellings, including secondary radiation.", "cluster": "regulation", "aliases": [ "Russia EMF limit", "SanPiN limit", "10 microwatt per cm2 limit" ], "related": [ "standards:russia-sanpin-rf", "limits:russia-public-300mhz-300ghz", "limits:russia-public-30-300mhz" ] }, "sources": [ { "id": "russia-sanpin-1383", "title": "СанПиН 2.1.8/2.2.4.1383-03, приложение 1, таблица 2 — ПДУ ЭМП 30 кГц–300 ГГц для населения", "publisher": "Главный государственный санитарный врач РФ (via ConsultantPlus)", "url": "https://www.consultant.ru/document/cons_doc_LAW_43243/b80f2a134eb7436dbdb5ff9efd13bd96e1a2e452/", "year": 2003, "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "russia-sanpin-2021", "title": "СанПиН 1.2.3685-21 — Гигиенические нормативы и требования к обеспечению безопасности факторов среды обитания", "publisher": "Роспотребнадзор (via ConsultantPlus)", "url": "https://www.consultant.ru/document/cons_doc_LAW_375839/", "year": 2021, "kind": "regulation", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-is-russias-10-microwatt-limit", "html": "https://emfbase.com/questions/what-is-russias-10-microwatt-limit", "markdown": "https://emfbase.com/questions/what-is-russias-10-microwatt-limit.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:which-phones-have-the-lowest-sar", "collection": "questions", "slug": "which-phones-have-the-lowest-sar", "name": "Which phones have the lowest SAR?", "summary": "Lowest declared ear values among current models here are 0.38–0.53 W/kg against a 2 W/kg EU limit, but declared SAR is a maximum-power compliance figure and ranks test behaviour, not everyday absorption.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Which phone models have the lowest declared SAR, and does buying one lower my exposure?", "answer": "Among current models in this dataset the lowest declared values at the ear are the Samsung Galaxy A16 5G at 0.38 W/kg, the Fairphone Gen. 6 at 0.48 W/kg and the Samsung Galaxy A36 5G at 0.53 W/kg, against an EU limit of 2 W/kg averaged over 10 g of tissue; recent iPhones sit near the top of the range at 1.49 W/kg. All of them are declarations from a worst-case compliance test at maximum transmit power, so they rank how the models behave in that test and not how much energy your body absorbs day to day — a phone with strong reception transmits orders of magnitude below maximum power. Choosing a lower-SAR model changes real exposure far less than using speakerphone or wired earphones and calling where the signal is good.", "cluster": "devices", "aliases": [ "lowest SAR phone", "lowest radiation phone", "low SAR phone list" ], "related": [ "devices:samsung-galaxy-a16-5g", "devices:fairphone-gen-6", "limits:icnirp-2020-sar-local", "questions:what-is-sar-and-does-a-low-sar-phone-matter" ] }, "sources": [ { "id": "bfs-sar-database", "title": "SAR search — declared SAR values of mobile phones", "publisher": "Bundesamt für Strahlenschutz (German Federal Office for Radiation Protection)", "url": "https://www.bfs.de/EN/service/sar-suche/sar_suche_node.html", "kind": "government", "retrieved": "2026-08-12" }, { "id": "bfs-sar-mobile", "title": "Specific absorption rate (SAR) of mobile phones — measurement procedure and interpretation", "publisher": "Bundesamt für Strahlenschutz (German Federal Office for Radiation Protection)", "url": "https://www.bfs.de/EN/topics/emf/mobile-communication/protection/sar-mobil/sar-mobile-phone.html", "kind": "government", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/which-phones-have-the-lowest-sar", "html": "https://emfbase.com/questions/which-phones-have-the-lowest-sar", "markdown": "https://emfbase.com/questions/which-phones-have-the-lowest-sar.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:why-does-phone-sar-differ-between-us-and-europe", "collection": "questions", "slug": "why-does-phone-sar-differ-between-us-and-europe", "name": "Why does the same phone have two different SAR values?", "summary": "U.S. SAR is averaged over 1 g against 1.6 W/kg; EU/ICNIRP SAR over 10 g against 2 W/kg. The numbers are not interchangeable, and body-worn values only hold at their declared separation distance.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Why does my phone show one SAR value in the U.S. and a different one in Europe?", "answer": "The two figures come from different averaging masses and different limits, not from different hardware. The U.S. FCC limit is 1.6 W/kg averaged over 1 g of tissue, while ICNIRP and the EU use 2 W/kg averaged over 10 g; spreading the same absorbed power over ten times the mass lowers the number, so a European value is typically smaller and cannot be compared with a U.S. one or read as a safety ranking. Body-worn values add a second variable: each is declared at a stated separation distance, commonly 5 mm, and does not describe the phone flat against skin.", "cluster": "devices", "aliases": [ "1g vs 10g SAR", "SAR US vs Europe", "why two SAR values" ], "related": [ "limits:fcc-sar-partial-body", "limits:icnirp-2020-sar-local", "protocols:sar-lookup", "glossary:sar" ] }, "sources": [ { "id": "fcc-2-1093", "title": "47 CFR § 2.1093 — Radiofrequency radiation exposure evaluation: portable devices", "publisher": "U.S. Government Publishing Office (eCFR)", "url": "https://www.ecfr.gov/current/title-47/section-2.1093", "kind": "regulation", "retrieved": "2026-08-12" }, { "id": "icnirp-2020", "title": "Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)", "publisher": "International Commission on Non-Ionizing Radiation Protection", "url": "https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html", "year": 2020, "kind": "guideline", "retrieved": "2026-08-12" }, { "id": "bfs-sar-mobile", "title": "Specific absorption rate (SAR) of mobile phones — measurement procedure and interpretation", "publisher": "Bundesamt für Strahlenschutz (German Federal Office for Radiation Protection)", "url": "https://www.bfs.de/EN/topics/emf/mobile-communication/protection/sar-mobil/sar-mobile-phone.html", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/why-does-phone-sar-differ-between-us-and-europe", "html": "https://emfbase.com/questions/why-does-phone-sar-differ-between-us-and-europe", "markdown": "https://emfbase.com/questions/why-does-phone-sar-differ-between-us-and-europe.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:how-do-i-find-a-qualified-emf-consultant", "collection": "questions", "slug": "how-do-i-find-a-qualified-emf-consultant", "name": "How do I find a qualified EMF consultant?", "summary": "Search the certifier's own register (BBI, IBN, SRP), or an ISO/IEC 17025-accredited lab where the result has legal weight, and judge the survey by whether the report names instrument, calibration, method, positions and the limit compared against.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "How do I find someone qualified to survey my home for EMF, and how do I check them?", "answer": "Start from a certifying body's own register rather than from search ads, because that is the only listing the certifier will stand behind: the Building Biology Institute publishes a directory of currently certified EMRS/BBEC professionals in North America, IBN trains and lists building-biology consultants in Europe, and the UK's Society for Radiological Protection maintains chartered registers that cover non-ionising radiation. For anything with legal consequences — a base-station complaint, a workplace assessment — ask instead for a laboratory accredited to ISO/IEC 17025 for the specific measurement method. Then check the report, not the person: it should name the instrument and its calibration date, the method, the measurement positions, and which limit or guideline each number is compared against.", "cluster": "measurement", "aliases": [ "EMF consultant near me", "EMF inspector certification", "building biologist directory", "EMRS certified professional" ], "related": [ "organizations:bbi", "organizations:ibn", "organizations:srp-uk", "protocols:rf-room-survey", "questions:what-certification-should-an-emf-consultant-have" ] }, "sources": [ { "id": "bbi-certified-professionals", "title": "Certified Professionals directory", "publisher": "Building Biology Institute (US)", "url": "https://buildingbiologyinstitute.org/certified-professionals/", "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "ibe-building-biology", "title": "Institute of Building Biology + Sustainability IBN — building biology testing and training", "publisher": "IBN / buildingbiology.com", "url": "https://buildingbiology.com/", "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "srp-cradp", "title": "Chartered Radiation Protection Professional (CRadP) — registration criteria", "publisher": "Society for Radiological Protection (SRP), United Kingdom", "url": "https://srp-uk.org/careers-and-registration/chartered-radiation-protection-professional-cradp-", "kind": "ngo", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/how-do-i-find-a-qualified-emf-consultant", "html": "https://emfbase.com/questions/how-do-i-find-a-qualified-emf-consultant", "markdown": "https://emfbase.com/questions/how-do-i-find-a-qualified-emf-consultant.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-certification-should-an-emf-consultant-have", "collection": "questions", "slug": "what-certification-should-an-emf-consultant-have", "name": "What certification should an EMF consultant have?", "summary": "All practitioner credentials here are voluntary and private; prefer ones with a syllabus, exam and renewal (EMRS, BBEC, IBN, CRadP). ISO/IEC 17025 accredits a lab for a specific method and is what regulators require.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Which EMF consultant certifications actually mean something?", "answer": "There is no government licence for residential EMF surveying anywhere, so every credential in this field is voluntary and issued by a private body — which makes what the body verifies the only thing worth checking. The substantive ones name a syllabus, an examination and a renewal requirement: EMRS, BBEC and BBNC from the Building Biology Institute, building-biology consultant training from IBN, CRadP/IRadP from the SRP for the UK, and industrial-hygiene credentials for workplace exposure. ISO/IEC 17025 accreditation is different in kind and stronger where it applies: it certifies a laboratory for a named measurement method rather than certifying a person, and it is what regulators require — in Switzerland only a firm on the SAS register may produce a compliance measurement under the NISV.", "cluster": "measurement", "aliases": [ "EMRS vs BBEC", "is EMF certification real", "EMF consultant licence", "ISO 17025 EMF measurement" ], "related": [ "organizations:bbi", "organizations:srp-uk", "organizations:sas-ch", "questions:do-i-need-an-accredited-measurement" ] }, "sources": [ { "id": "bbi-certifications", "title": "Certifications — Building Biology Advocate (BBA), Electromagnetic Radiation Specialist (EMRS), Building Biology Environmental Consultant (BBEC), New-Build Consultant (BBNC)", "publisher": "Building Biology Institute (US)", "url": "https://buildingbiologyinstitute.org/certifications/", "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "srp-cradp", "title": "Chartered Radiation Protection Professional (CRadP) — registration criteria", "publisher": "Society for Radiological Protection (SRP), United Kingdom", "url": "https://srp-uk.org/careers-and-registration/chartered-radiation-protection-professional-cradp-", "kind": "ngo", "retrieved": "2026-08-12" }, { "id": "sas-accredited-bodies", "title": "Search for accredited bodies (STS register of ISO/IEC 17025 laboratories)", "publisher": "Schweizerische Akkreditierungsstelle SAS (Swiss Accreditation Service)", "url": "https://www.sas.admin.ch/sas/en/home/akkreditiertestellen/akkrstellensuchesas.html", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-certification-should-an-emf-consultant-have", "html": "https://emfbase.com/questions/what-certification-should-an-emf-consultant-have", "markdown": "https://emfbase.com/questions/what-certification-should-an-emf-consultant-have.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:do-i-need-an-accredited-measurement", "collection": "questions", "slug": "do-i-need-an-accredited-measurement", "name": "Do I need an accredited measurement to challenge a cell tower?", "summary": "Regulators act on measurements made by the prescribed method by an accredited body (in Switzerland, an ISO/IEC 17025 firm in the SAS register). Your own readings are for triage, not for compliance.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Will my own meter readings count when I complain about a base station?", "answer": "Usually not, and that is a procedural point rather than a judgement about your meter. Authorities act on measurements taken by the method their own rules prescribe, by a body accredited for that method: in Switzerland that means a firm holding ISO/IEC 17025 accreditation for NISV measurements, which you can verify in the public SAS register by searching for 'NISV', applying the BAFU measurement recommendations for GSM, UMTS, LTE and 5G NR. Your own readings are still useful — they tell you whether a professional measurement is worth paying for, and where in the building to ask for it — but a broadband meter cannot separate one operator's signal from every other transmitter in the band, which is exactly what a compliance assessment has to do.", "cluster": "measurement", "aliases": [ "official EMF measurement", "accredited RF measurement", "cell tower compliance measurement", "NISV Messung" ], "related": [ "organizations:sas-ch", "organizations:bafu-ch", "standards:ch-onir", "questions:can-i-refuse-a-cell-tower-or-smart-meter" ] }, "sources": [ { "id": "bafu-nisv-vollzugshilfen", "title": "Mobilfunk: Vollzugshilfen zur NISV — Messempfehlungen und Hinweis auf die für NIS-Messungen akkreditierten Messfirmen", "publisher": "Bundesamt für Umwelt BAFU (Switzerland)", "url": "https://www.bafu.admin.ch/de/mobilfunk-vollzugshilfen-zur-nisv", "kind": "government", "retrieved": "2026-08-12" }, { "id": "sas-accredited-bodies", "title": "Search for accredited bodies (STS register of ISO/IEC 17025 laboratories)", "publisher": "Schweizerische Akkreditierungsstelle SAS (Swiss Accreditation Service)", "url": "https://www.sas.admin.ch/sas/en/home/akkreditiertestellen/akkrstellensuchesas.html", "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/do-i-need-an-accredited-measurement", "html": "https://emfbase.com/questions/do-i-need-an-accredited-measurement", "markdown": "https://emfbase.com/questions/do-i-need-an-accredited-measurement.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-symptoms-are-attributed-to-emf", "collection": "questions", "slug": "what-symptoms-are-attributed-to-emf", "name": "What symptoms do people attribute to EMF?", "summary": "Headache, fatigue, concentration and sleep problems, dizziness, palpitations, tinnitus and skin sensations — non-specific, not a recognised syndrome, and with many common alternative causes that WHO and ANSES say should be evaluated clinically first.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Which symptoms are reported by people who believe they are sensitive to EMF?", "answer": "The reported symptom set is broad and non-specific: headache, fatigue, difficulty concentrating and memory complaints, sleep disturbance, dizziness or nausea, palpitations, tinnitus or ear pressure, and skin sensations such as burning, tingling or flushing, most often of the face. WHO notes that the collection of symptoms is not part of any recognised syndrome and that its prevalence estimates vary widely between surveys and countries. Because every one of these symptoms has many common causes, both WHO and ANSES recommend that they be investigated clinically in their own right rather than attributed to exposure in advance — which is medical advice this site records and does not substitute for.", "cluster": "health", "aliases": [ "EHS symptoms list", "electrosensitivity symptoms", "EMF sickness symptoms" ], "related": [ "studies:who-ehs-2005", "studies:anses-2018-ehs", "glossary:ehs", "questions:is-emf-sensitivity-real" ] }, "sources": [ { "id": "who-ehs", "title": "Electromagnetic hypersensitivity (WHO backgrounder, December 2005; formerly Fact sheet 296)", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/hypersensitivity", "year": 2005, "kind": "government", "retrieved": "2026-08-12" }, { "id": "anses-2018-ehs", "title": "Avis et rapport d'expertise collective — Hypersensibilité électromagnétique ou intolérance environnementale idiopathique attribuée aux champs électromagnétiques (mars 2018)", "publisher": "Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), France", "url": "https://www.anses.fr/fr/system/files/AP2011SA0150Ra.pdf", "year": 2018, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-symptoms-are-attributed-to-emf", "html": "https://emfbase.com/questions/what-symptoms-are-attributed-to-emf", "markdown": "https://emfbase.com/questions/what-symptoms-are-attributed-to-emf.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:what-should-i-do-if-i-think-im-electrosensitive", "collection": "questions", "slug": "what-should-i-do-if-i-think-im-electrosensitive", "name": "What should I do if I think I'm electrosensitive?", "summary": "Have the symptoms evaluated clinically, measure before you buy anything, and remove cheap exposures first. Don't treat precautionary guideline values as health-based limits or shield before measuring.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "I think I react to EMF — what are the sensible next steps?", "answer": "See a clinician about the symptoms themselves: that is what WHO recommends and what ANSES asked French health services to be trained for, and it is the step most likely to find something treatable. In parallel, two things are worth doing because they cost little and settle facts rather than beliefs: measure your own environment so that any change you make can be checked against a number, and remove the exposures that are cheap to remove — wired network instead of Wi-Fi in the bedroom, chargers and cordless base stations away from the bed, wiring faults corrected. What the evidence does not support is spending on shielding before measuring, or treating precautionary guideline values from clinical associations as though they were health-based limits.", "cluster": "health", "aliases": [ "I think I am electrosensitive", "EHS what to do", "reduce EMF exposure sensitive", "electrosensitivity help" ], "related": [ "protocols:sleeping-area-assessment", "studies:anses-2018-ehs", "questions:what-should-i-measure-first", "questions:do-emf-protection-devices-work" ] }, "sources": [ { "id": "who-ehs", "title": "Electromagnetic hypersensitivity (WHO backgrounder, December 2005; formerly Fact sheet 296)", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/hypersensitivity", "year": 2005, "kind": "government", "retrieved": "2026-08-12" }, { "id": "anses-2018-ehs-summary", "title": "Hypersensibilité aux ondes électromagnétiques : amplifier l'effort de recherche et adapter la prise en charge des personnes concernées", "publisher": "ANSES, France", "url": "https://anses.fr/fr/content/hypersensibilit%C3%A9-aux-ondes-%C3%A9lectromagn%C3%A9tiques-amplifier-l%E2%80%99effort-de-recherche-et-adapter-la", "year": 2018, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/what-should-i-do-if-i-think-im-electrosensitive", "html": "https://emfbase.com/questions/what-should-i-do-if-i-think-im-electrosensitive", "markdown": "https://emfbase.com/questions/what-should-i-do-if-i-think-im-electrosensitive.md", "collection": "https://emfbase.com/api/questions" } }, { "id": "questions:does-nocebo-mean-my-symptoms-are-imagined", "collection": "questions", "slug": "does-nocebo-mean-my-symptoms-are-imagined", "name": "Does the nocebo effect mean the symptoms are imagined?", "summary": "No — nocebo is a mechanism that produces genuine symptoms. Blinded studies show symptoms track belief rather than actual field presence, which changes what helps, not whether the suffering is real.", "status": "verified", "lastVerified": "2026-08-12", "data": { "question": "Researchers say EHS symptoms are a nocebo effect — does that mean they aren't real?", "answer": "No. Nocebo describes a mechanism, not a verdict on whether someone is suffering: expecting harm can produce measurable physiological symptoms, and those symptoms are as real as any other. The review evidence — 46 blinded provocation experiments with 1175 volunteers — is that symptoms did not track whether the field was actually on, while they did track what participants believed, and the same reviews are explicit that this does not make the illness imaginary. It does change what helps: if the trigger is not the field, then shielding and moving house are unlikely to resolve the symptoms, whereas clinical care of the symptoms themselves may.", "cluster": "health", "aliases": [ "nocebo EMF", "is EHS psychosomatic", "are EHS symptoms real" ], "related": [ "studies:rubin-2010", "glossary:nocebo-effect", "questions:is-emf-sensitivity-real" ] }, "sources": [ { "id": "rubin-2010", "title": "Idiopathic environmental intolerance attributed to electromagnetic fields (formerly 'electromagnetic hypersensitivity'): an updated systematic review of provocation studies", "publisher": "Rubin GJ, Nieto-Hernandez R, Wessely S — Bioelectromagnetics 31(1):1–11", "url": "https://pubmed.ncbi.nlm.nih.gov/19681059/", "year": 2010, "kind": "peer-reviewed", "retrieved": "2026-08-12" }, { "id": "who-ehs", "title": "Electromagnetic hypersensitivity (WHO backgrounder, December 2005; formerly Fact sheet 296)", "publisher": "World Health Organization", "url": "https://www.who.int/teams/environment-climate-change-and-health/radiation-and-health/non-ionizing/hypersensitivity", "year": 2005, "kind": "government", "retrieved": "2026-08-12" } ], "links": { "self": "https://emfbase.com/api/questions/does-nocebo-mean-my-symptoms-are-imagined", "html": "https://emfbase.com/questions/does-nocebo-mean-my-symptoms-are-imagined", "markdown": "https://emfbase.com/questions/does-nocebo-mean-my-symptoms-are-imagined.md", "collection": "https://emfbase.com/api/questions" } } ] }