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Electromagnetic fields

Electromagnetic fields

There are many different sources of electromagnetic fields in the everyday environment, including the electrical appliances used in the home and the mobile phones we use to talk to each other.

  • Static fields do not vary in time and are used in various industrial processes and medical devices such as Magnetic Resonance Imaging.
  • Low frequency electric and magnetic fields mainly arise from the generation, transport and use of electricity.
  • Radio waves are used to broadcast radio and TV and by telecommunication equipment such as mobile phones and base stations.
  • The field levels normally encountered in the environment are low compared to the exposure guidelines  which aim to protect people from harmful health effects.
  • The quantities and units used to measure exposure to electromagnetic fields are also summarised.

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