Silica Dust Controls for Surface Mines
SILICA DUST CONTROLS FOR SURFACE MINES . John A. Organiscak ... Coal 11% Metal 21% Nonmetal 18% Stone 13% Sand Gravel 12% ***Equipment operators . most frequently exceed : the standard. Surface Mining Equipment : Drills : Bulldozers . Trucks Loaders . BEST PRACTICES FOR SURFACE MINE DUST CONTROL • Drill dust collection systems ...