Electromagnetic fields from Power lines, Wiring & Appliances
2. What is known about exposure to Extremely Low Frequency (ELF) fields?
Electric and magnetic fields can be measured in practically every environment or estimated from other parameters. Environmental levels of ELF fields are very low, typically 5-50 V/m for electric fields and 0.01-0.2 µT for magnetic fields. Much higher exposures can take place in some workplaces and possibly outside the workplace for many of us for shorter durations.
There are very precise instruments to measure electric and magnetic fields, but there is a lack of consensus on what exposure characteristics should be measured to determine health effects.
Calculation methods are available to evaluate human exposure, but there are uncertainties in the results. More...