Abstract
AbstractConcentrations of airborne particulate lead in an indoor pistol range far exceeded the recently revised Occupational Safety and Health Administration target standard of 50 μg/m3, often by two or three orders of magnitude. A substantial fraction (40 to 50%) of the lead occurred on respirable‐size particles (diameter ≤ 2 μm). Significantly elevated levels of Sb, Cu, As and Ba also resulted from the firing of .38 and .45 caliber pistols. The high levels of respirable, toxic elements observed indicate a potentially serious exposure for users and, in particular, the operators of such facilities.
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