Naturally occurring ELF EMF is associated with atmospheric processes such as ionospheric currents, thunderstorms and lightning . Artificial sources are the dominant sources of ELF EMF and are usually associated with the generation, distribution and use of electricity at the frequency of 50 or 60 Hz.
Read moreWhat does low-frequency do to your body?
Some recent epidemiologic studies have suggested that the exposure to extremely low frequency (ELF) electromagnetic fields (EMF) affect human health, because of the incidence of certain types of cancer, depression, and miscarriage have been increased among individuals living or working in environments exposed to such …
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