mine dust standard News

The inspector general for the U.S. Department of Labor is urging the government’s mine safety agency to tighten restrictions on a dangerous substance that is inhaled by coal miners. A report from the inspector general’s office said the Mine Safety …

The Obama administration ordered a 25 percent cut in the levels of coal dust in U.S. mines to reduce deadly black lung disease, a move that drew criticism from the mining industry and the threat of a lawsuit. The rule …