Addressing a problem first identified 50 years ago, federal regulators say stricter new rules to limit miners’ exposure to silica dust are expected to finally go on the books on Tuesday.
For decades, miners have called for limits on highly toxic silica dust, which they’re exposed to while mining. An investigation shows its impact and the weakness of proposed rules to protect them.
More than 2,000 miners in Appalachia are dying from an advanced stage of black lung. NPR and Frontline have found the government had multiple warnings and opportunities to protect them, but didn’t.