{
  "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"
    }
  ],
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