Q&A: Rule limiting silica exposure for miners ‘long time coming’
Under a recently finalized rule, the U.S. Department of Labor’s Mine Safety and Health Administration set a 50 g/m3 full-shift exposure limit on respirable crystalline silica for miners, according to a press release.Along with the silica limit, operators of metal and nonmetal mines are required to have free medical surveillance programs, which the release stated are already in place for