Nov 23 Health Lawmakers, Union Urge Mine Safety Regulators to Act on Silica Dust A group of Ohio Valley senators says a watchdog agency’s recent report shows that federal regulators must do more to protect coal miners from silica dust, an especially toxic form of dust created when mining equipment cuts into rock layers near coal seams. In a Monday morning press release, six Democratic senators, including Joe Manchin […] By Sydney Boles Nov 23 Health Lawmakers, Union Urge Mine Safety Regulators to Act on Silica Dust Sydney Boles