{
  "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      "are EMF limits outdated",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"
  }
}