The Interagency Task Force Studying Electric and Magnetic Fields (Task Force) continues in its effort to keep the Connecticut General Assembly informed of the many issues surrounding power frequency electric and magnetic fields (EMF). This fourth annual report provides updates on the previous years published (1994) epidemiologic studies and highlights EMF activities in other states and countries; in addition, it re-iterates the education-oriented policy adopted by the Task Force. This report, in conjunction with other Task Force activities, is in response to a legislative mandate to address concerns of Connecticut residents about the possible health effects associated with exposures to EMF.
The Task Force continues to review the epidemiologic studies which have suggested that exposure to EMF may be associated with an increased risk of certain types of cancers, primarily leukemia and brain cancer, and other studies which have reported no such risk. During 1994 the National Radiological Protection Board (NRPB) released an update to its initial 1992 report . The NRPB stated that despite several well- designed studies published over the last two years there remains "no persuasive biological evidence that [EMF] can influence any of the accepted stages" of the development of cancer. The report goes on to say that "the studies do not establish that exposure to electromagnetic fields is a cause of cancer, but, taken together, do provide some evidence to suggest that the possibility exists in the case of childhood leukemia. The number of affected children in the studies is, however, very small."
Based on this and similar assessments and the evaluation that the Task Force has undertaken over the last three years, the Task Force believes continued monitoring of the science is an appropriate approach. An educational brochure has been developed to provide basic information to people asking questions about EMF measurements and health effects. The brochure, EMF Issues, also serves as a resource providing literature and journal references so that people can obtain more information.
The Task Force recommends continued allocation of resources to study and follow this issue and maintenance of "voluntary exposure control" policy as it relates to electrical appliances under the control of individuals. There is support for a continuing policy of communication to the general public about EMF. The Task Force does not recommend changes to the present electrical supply system in Connecticut, but continues to endorse the Connecticut Siting Council's Best Management Practices for utilities making changes in electrical generators, substations, and transmission facilities. Finally, the Task Force does not recommend any health-based standards at this time. The Task Force and its Advisory Committee will meet on an as-needed basis during 1995 with at least one planned meeting circa June 1995.