Australian guidelines for exposure to magnetic fields and electrical fields in the extremely low frequency (ELF) band are currently under revision by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA). Although ELF magnetic fields have been classified as a possible cause of cancer in humans (Group 2B) by the International Agency for Research on Cancer (IARC), the draft guidelines have allowed conditional increases in the allowable levels of exposure. Everything electrical is a source of ELF fields, but elevated levels of occupational exposure can be expected in power stations, near transmission cables and near some electrical equipment (arc furnaces, large electrical motors, non-destructive testing equipment, welders and tape degaussers). In some cases, exposure standards for the general public are applicable to employees at work. Occupational hygiene case studies are presented from commercial buildings, the electrical-manufacturing industry, the entertainment industry and the metal-manufacturing industry
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