Archives of environmental health
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Arch. Environ. Health · Sep 1984
A re-evaluation of radiological evidence from a study of U.S. strip coal miners.
In 1972, the U. S. Public Health Service examined 1438 workers employed at seven bituminous and one anthracite U. ⋯ Average respirable coal mine dust exposures in the anthracite mine were less than 1 mg/m3 prior to 1975 and, coupled with the radiographic findings, suggest further study of the efficacy of the 2 mg/m3 U. S. Federal surface coal mine dust standard in anthracite coal mines.