title: Electromagnetic fields: principles of exposure mitigation.
abstract: Basic principles of reducing exposure to electromagnetic fields are reviewed in this article. Measures to reduce exposure can be divided into organisational/administrative and technical/engineering actions. Both strategies are briefly analysed and the basic principles of the theory of shielding are presented. A definition of shielding effectiveness (SE) is given, and the results from the general Transmission Lines Theory are presented. Practical situations of shielding static and time-varying electric and magnetic fields are discussed on the basis of the physical properties of the fields and of the shield.
authors.affiliation: Department of Occupational Hygiene, National Institute of Occupational Safety and Prevention (ISPESL), Italy.
authors.forename: Rosaria
authors.initials: R
authors.lastname: Falsaperla
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Spagnoli
authors.forename: Paolo
authors.initials: P
authors.lastname: Rossi
mesh_terms: D004553:Electric Conductivity; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004738:Engineering; D006801:Humans; D007558:Italy; D016273:Occupational Exposure / Q000517:prevention & control*; D011835:Radiation Protection / Q000295:instrumentation*; D017132:Workplace / Q000458:organization & administration / Q000592:standards