Abstract
An investigation was made of possible hazardous working conditions at the Orrville Bronze and Aluminum Company, Orrville, Ohio. Medical screening at the site had recently discovered a worker with a blood lead level in excess of 100 micrograms/deciliter (microg/dl) and seven workers with blood lead levels in excess of 40 microg/dl. The facility was a nonferrous foundry specializing in small- to medium-sized bronze, brass, and copper castings. Lead concentrations in six personal breathing-zone samples ranged from 38 to 520 micrograms/cubic meter (microg/m{sup 3}). Airborne copper levels ranged from 26 to 2601 microg/m{sup 3}. Airborne zinc concentrations ranged from 291 to 3165 microg/m{sup 3}. Three of 18 workers had blood lead levels in excess of 60 microg/m{sup 3}, the OSHA level which requires immediate medical removal protection. The report concludes that lead and copper exposures represented a serious health hazard to workers. Measures to reduce exposures, including engineering controls, work practices, and housekeeping are recommended.
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