Every EMF number, with its unit, its basis and its source
Exposure limits by standard and country, field strengths by distance for everyday emitters, exact unit conversions, measurement protocols, instrument classes, shielding materials and the research record — as HTML, Markdown, JSON, bulk export and an MCP endpoint reading the same records.
Regulatory, guideline and precautionary values are never mixed
The same field strength is compliant under FCC rules and 'extreme' under building-biology grading. Every value states which kind it is, so the two are never silently compared.
Every number carries its provenance
Unit, frequency band, averaging time, population, basis — regulatory, measured, computed or manufacturer — plus the primary document it came from and the date the link was checked.
Estimates are labelled as estimates
Computed field strengths state their formula and their assumptions: free-space boresight upper bounds, invalid in the near field, before any duty-cycle correction.
Direct answers
Short, cited answers to what people actually ask, each linked to the records behind it.
safe levels
distances
measurement
shielding
regulation
- Why do FCC and ICNIRP limits differ?
- Can you object to a tower or refuse a smart meter?
- Which countries have the strictest EMF limits?
- What is the EMF exposure limit in Canada?
- What is the EMF limit in the UK?
- What is the EMF limit in Australia?
- Why are India's tower limits 10 times stricter?
- Did Italy raise its EMF limit from 6 to 15 V/m?
- What is the EMF limit in China?
- What is Russia's 10 µW/cm² limit?
Collections
- Standards & frameworks17 records
The bodies and documents that set exposure values, separated into legally enforceable regulation, scientific guidelines, and precautionary frameworks.
- Exposure limits33 records
Individual numeric exposure limits and precautionary values, each with its quantity, unit, frequency band, averaging time, population and citation.
- Quantities & units7 records
The physical quantities used in EMF work, their units, exact conversion factors, and the formulas relating them.
- Sources & emitters23 records
Everyday EMF sources with emission bands, transmit power, duty cycle, field strength by distance, and mitigations ordered by effectiveness.
- Instruments12 records
Measurement instrument classes: what each detects, what it cannot detect, the band it covers, and the criteria that separate a usable instrument from a toy.
- Shielding & remediation10 records
Shielding material classes and remediation measures with datasheet attenuation, grounding requirements, and documented failure modes.
- Research record10 records
Key studies and hazard classifications, each stating what was found, what it can and cannot establish, and where it sits in the evidence base.
- Organizations16 records
Regulators, standards bodies, health authorities, certifying institutes and advocacy groups, with jurisdiction and role.
- Measurement protocols7 records
Reproducible measurement procedures: goal, equipment, ordered steps, pitfalls, and the limits to interpret results against.
- Glossary27 records
Definitions of the physics, regulatory, measurement and health terms used throughout the dataset.
- Direct answers28 records
Frequently asked EMF questions with short, cited, quotable answers linked to the underlying records.
Calculators
- Unit converter
mG ↔ µT, V/m ↔ µW/m², W ↔ dBm — exact factors, with the far-field caveat stated where it applies.
- Distance and exposure estimator
Free-space power density at a distance from a transmitter, compared against regulatory and precautionary values side by side.
Built for agents as much as people
llms.txtJSON APIMCPbulk exportEvery page has a Markdown twin at the same path with .md appended and a JSON record under /api. Records use stable collection:id identifiers, JSON-LD describes the dataset and each record, and an MCP endpoint exposes typed tools over the same registry. Data is licensed CC BY 4.0.