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SCHEME FOR INCORPORATING DC MAGNETIC FIELDS INTO EPIDEMIOLOGICAL STUDIES OF EMF EXPOSURE
Citation:
Blackman, C. AND B. Most. SCHEME FOR INCORPORATING DC MAGNETIC FIELDS INTO EPIDEMIOLOGICAL STUDIES OF EMF EXPOSURE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/061 (NTIS PB94143724).
Description:
Experimental data on calcium-ion release in chicken brain tissue suggest that biological effects of electric and magnetic fields (EMFs) are concentrated at certain combinations of DC magnetic field strength and "critical" AC magnetic field frequencies. e hypothesize that "active" AC/DC combinations may exist in the epidemiological data, and may be used as an aid in describing a relationship between incidence of childhood cancer and exposure to magnetic fields from electric power distribution systems. n empirical model is used to calculate these active combinations at any given DC magnetic field strength and to define a rating system which describes the proximity of AC magnetic fields generated by electric power lines to the new, computed critical frequencies. uch an exposure score may be useful in investigating correlations of EMF exposure with disease incidence. or 60 Hz and 50 Hz, the highest EMF exposure scores occurred at DC field strengths of 506 mG and 422 mG, respectively.