EntityQ741979· pop 30· linked from 178 articlesextremely low frequencySign in to savethe 3–30 Hz range of the electromagnetic spectrumConnectionsultraviolet radiationEntityX-rayEntityradio spectrumEntityWorld Health OrganizationEntityfrequencyEntityinfrared radiationEntityUnited States NavyEntityionosphereEntitycorrelationEntityelectric power transmissionEntityterahertz radiationEntitySchumann resonancesEntityChinaCountryEarthConceptNew York CityCityEuropean UnionConceptMichiganEntityWisconsinEntityredEntitygreenEntityCategoriesIARC Group 2B carcinogensRadio spectrum