工频电磁场是一种职业性危害。职业暴露于工频电磁场对人体健康的影响问题,已引起了人们的普遍重视。随着我国电力工业的发展,职业暴露人群不断增多。近年来,国外的研究发现对工频电磁场的暴露与肿瘤的发病有关,为了探讨工频电磁场与肿瘤的发病关系,作者进行了此次职业流行病学的研究。材料与方法 Power frequency electromagnetic field is a professional hazard. Occupational exposure to power frequency electromagnetic fields on human health issues, has aroused widespread attention. With the development of the power industry in our country, the occupational exposure population is constantly increasing. In recent years, foreign studies have found that exposure to power frequency electromagnetic fields is related to the incidence of tumors. In order to investigate the relationship between power frequency electromagnetic fields and the incidence of tumors, the author conducted a study on the occupational epidemiology. Materials and Methods