Analysis of Noncoal Mine Atmospheres:Toxic Fumes from Explosives.

摘要

Toxic fumes generated during shot firing were measured in a phosphate rock mine and a copper mine. Fumes generated during firing of explosives in the Bureau of Mines 1,350/cft test chamber were measured,also. The release of fumes from water gels,ammonium-nitrate-oil mixtures,and nitroglycerin-based explosives was studied. Direct reading instruments were used to monitor the fume concentrations. The amount of CO produced per unit weight of nitroglycerin explosives (0.41 cft/200grams) was higher than that produced by ammonium-nitrate-oil mixtures (0.24 cft/200grams) and water gels (0.16 cft/200grams). The amount of NOx produced by nitroglycerin-based explosives was also higher than the amount produced by water gels or ammonium-nitrate-oil mixtures.