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作者谨就美国工业安全与保健局在美国西部一个炼铜厂所进行的一次工业卫生调查资料中关于接触砷、铅的问题进行卫生学评价。 砷、铅现行的容许浓度分别为10、50μg/m~3。
The authors wish to make a hygienic evaluation of the issue of exposure to arsenic and lead in an industrial hygiene survey conducted by the U.S. Industrial Safety and Health Council at a copper smelter in the western United States. The allowable concentrations of arsenic and lead are 10,50μg / m ~ 3 respectively.