Influence of Electric, Magnetic, and Electromagnetic Fields on the Circadian System: Current Stage of Knowledge

Table 1

A list of various sources of electromagnetic fields/radiation influencing living organisms [7].

Level	Frequency range	Radiation source
Static	0 Hz	Earth, video screens, magnetic resonance imaging, and other diagnostic/scientific equipment, electrolysis, welding
Extremely low frequency fields	0–300 Hz	Power transmission lines, home wiring, car electric engines, electric trains and trams, welding devices
Intermediate frequency	300 Hz–100 kHz	Video screens, antitheft devices used in cars, homes, shops, card readers, metal detectors, magnetic resonance imaging, welding devices
Radio frequency	100 kHz–300 GHz	Radio, television, mobile phones, microwave ovens, radar and radio transmitters, magnetic resonance imaging