Evaluation of approaches to sanitary and hygienic regulation of electromagnetic field at industrial facilities with radiating sources

Abstract

This paper considers discrepancy of approaches of domestic and international regulatory documents in the field of sanitary-hygienic evaluation of electromagnetic environment under production conditions. It presents the analysis of standards establishing maximum permissible levels of electromagnetic field in the whole specified range up to optical spectrum for people professionally related with operation and maintenance of radiating sources. The permissible levels of electromagnetic field components in frequency spectrum up to 3 THz and the diagrams for the electric and magnetic field strengths in the range up to 300 MHz at production facilities according to the domestic sanitary standards and rules are discussed. The analysis results of foreign national (USA, Canada, Germany and England) and international (ICNIRP and CENELEC) regulatory documents in the field of control of electromagnetic field components in the range up to 300 GHz for people professionally related with operation and maintenance of radiating sources are presented in the form of tabular data and comparison charts. It was found that international norms include practically the whole range of frequency components of electromagnetic fields except for 0-1 Hz (for electric field) and 300 GHz - 3 THz regulated by domestic standards. In addition, for energy flux density and strength of high-frequency components of magnetic field is one of the strictest maximum permissible levels have been adopted in Russia. It is confirmed that the domestic system of sanitary-hygienic regulation of electromagnetic environment at production facilities establishes the maximum permissible levels for discrete frequency ranges. The foreign regulations implement a deeper study of frequency ranges when normalizing electromagnetic field parameters under the specified conditions. The problem of sanitary-hygienic evaluation of electromagnetic environment at production facilities under the conditions of simultaneous exposure to electric, magnetic and electromagnetic fields from different groups of radiating sources in the frequency range extended to 3 THz remains relevant.