ELI5: Explain Like I'm 5

Electromagnetic environment

Electromagnetic environment is a term that describes the different types of electrical and magnetic energy that moving around us. All of the electrical appliances in your home, like your TV and computer, create electromagnetic fields. These fields are made up of electric and magnetic energy and they move through the air like sound waves do. Special devices help us measure the electromagnetic environment around us so that we can make sure it's safe.