Exposure assessment for a cohort of workers at a former uranium processing facility.
Anderson-JL; Daniels-RD; Fleming-DA; Tseng-C-y
J Expo Sci Environ Epidemiol 2012 Jul/Aug; 22(4):324-330
Exposure was assessed for a cohort of 6409 workers at a former uranium processing facility as part of a mortality study. Workers at the facility had potential for exposure to a wide variety of radiological and chemical agents including uranium, thorium, radon, external ionizing radiation, acid mists, asbestos, and various solvents. Organ dose from internal exposure to uranium was assessed, along with dose from external ionizing radiation and exposure to radon. Qualitative assessment of exposure to thorium, acid mists, asbestos, coal dust, welding fumes, and other chemicals was also performed. Mean cumulative organ dose from internal uranium exposure ranged from 1.1 mGy (lung) to 6.7 mGy (pancreas). Mean cumulative external ionizing radiation dose was 13.4 mGy. Mean cumulative radon exposure was 26 working level months (WLMs). The chemical agents to which the largest numbers of study subjects were exposed were acid mists, machining fluids, and a tributyl phosphate/kerosene mixture used in the refining process.
Uranium-compounds; Morbidity-rates; Mortality-rates; Workers; Exposure-levels; Thiuram-compounds; Radiation-sources; Radiation; Acids; Asbestos-dust; Asbestos-fibers; Asbestos-products; Solvents; Welding;
Author Keywords: uranium; nuclear workers; internal radiation dose; external radiation exposure; radon; thorium
Dr Jeri L. Anderson, National Institute for Occupational Safety and Health, Division of Surveillance, Hazard Evaluations and Field Studies, 4676 Columbia Parkway, MS R-14, Cincinnati, OH 45213
7440-61-1; 7440-29-1; 10043-92-2; 1332-21-4
Journal of Exposure Science and Environmental Epidemiology