Exposure to low-frequency electromagnetic fields--a health hazard?

Several epidemiologic studies indicate an association between exposure to low-frequency electromagnetic fields and certain types of cancer. However, there is no solid evidence from current experimental studies to support the hypothesis of carcinogenicity. Further research is needed, and in the present extended abstract Swedish epidemiologic studies projected for the future are briefly outlined. The studies will be time-consuming and will involve high costs. However, we anticipate that within the next four years the approach described will contribute significantly to knowledge about the possible health hazards caused by electromagnetic fields.