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Possible Health Benefits From Reducing Occupational Magnetic Fields #MMPMID23129537
Bowman JD; Ray TK; Park RM
Am J Ind Med 2013[Jul]; 56 (7): 791-805 PMID23129537show ga
Background: Magnetic fields (MF) from AC electricity are a Possible Human Carcinogen, based on limited epidemiologic evidence from exposures far below occupational health limits. Methods: To help formulate government guidance on occupational MF, the cancer cases prevented and the monetary benefits accruing to society by reducing workplace exposures were determined. Life-table methods produced Disability Adjusted Life Years, which were converted to monetary values. Results: Adjusted for probabilities of causality, the expected increase in a worker?s disability-free life are 0.04 year (2 weeks) from a 1 microtesla (?T) MF reduction in average worklife exposure, which is equivalent to $5,100/worker/?T in year 2010 U.S. dollars (95% confidence interval $1,000?$9,000/worker/?T). Where nine electrosteel workers had 13.8 ?T exposures, for example, moving them to ambient MFs would provide $600,000 in benefits to society (uncertainty interval $0?$1,000,000). Conclusions: When combined with the costs of controls, this analysis provides guidance for precautionary recommendations for managing occupational MF exposures.