ASSESSMENT OF CELLULAR TELEPHONE AND OTHER RADIO-FREQUENCY EXPOSURE FOR EPIDEMIOLOGIC RESEARCH

Epidemiologists are now embarking on the evaluation of the hypothesis that exposure to radio frequency energy from low-power wireless commun ication devices, such as portable cellular telephones, causes brain ca ncer and other adverse health outcomes. Even in the laboratory, exposu res from radio frequency sources are difficult to quantify; their meas urement in large populations for epidemiologic study is challenging. I n this paper, we outline the nature and magnitude of these exposures a nd discuss the prospects for obtaining useful measures of exposure for epidemiologic research.