[Evaluation of maximum permissible intensity of electromagnetic fields]

E-m fields and radiation in natural environment are characterized by the ratio of vectors: E:H = 120 II omega. For technological purposes a specific ratio of U:I in circuits is set, which imposes a change in the E:H ratio in the e-m being dispersed. It has been suggested that under the allowable intensities of e-m fields at workplaces the E:H = 120 II omega ratio be maintained. Critically evaluated were presently mandatory allowable values of e-m fields, inconsistensies of protective zones and irrationality of the E:H ratio being enhanced. Basing on analysis of results of studies on biological effects of e-m fields and verified standards GOST 12.1.006-76 1982 and ANSI C.95.1 1982, a draft project of allowable intensities of e-m fields has been submitted, distinguishing between general exposure related to general population and professional exposure related to those working in e-m fields exposure. Maximum values of e-m fields, differentiated in the frequency function are characterized by the ratio E:H = = 120 II omega and relate to workplaces and other places where people may stay. Furthermore, additional guidelines reducing the risk of e-m fields exposure have been presented.