{
  "id": "standards:who-elf-evidence",
  "collection": "standards",
  "slug": "who-elf-evidence-framework",
  "name": "WHO ELF evidence framework",
  "summary": "The World Health Organization's assessment of the extremely-low-frequency evidence base, which sets no exposure limit but records the daily-average magnetic field level above which epidemiology reports an association with childhood leukaemia.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "aliases": [
      "WHO EHC 238",
      "WHO ELF assessment"
    ],
    "organization": "World Health Organization",
    "edition": "2007 assessment, factsheet current",
    "jurisdiction": [
      "international"
    ],
    "kind": "guideline",
    "scope": "Reviews the ELF evidence base and endorses ICNIRP reference levels for acute effects. It defines no limit of its own: the 0.3–0.4 µT figure it records is an epidemiological association, not a threshold of harm and not enforceable anywhere.",
    "frequencyRange": {
      "minHz": 0,
      "maxHz": 300
    }
  },
  "sources": [
    {
      "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": "who-ehc-238",
      "title": "Extremely Low Frequency Fields — Environmental Health Criteria Monograph No. 238",
      "publisher": "World Health Organization",
      "url": "https://www.who.int/publications/i/item/9789241572385",
      "year": 2007,
      "kind": "peer-reviewed",
      "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"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/standards/who-elf-evidence-framework",
    "html": "https://emfbase.com/standards/who-elf-evidence-framework",
    "markdown": "https://emfbase.com/standards/who-elf-evidence-framework.md",
    "collection": "https://emfbase.com/api/standards"
  }
}