Polynuclear aromatic hydrocarbons in Canadian underground mines

CIM Bulletin, Vol. 87, No. 980, 1994

J.P. Mogan and E.D. Dainty, CANMET Mining Research Laboratories, Canadian Explosive Atmospheres Laboratory, Ottawa, Ontario

Polynuclear aromatic hydrocarbon (PAH) levels were measured in underground mines in the vicinity ofdiesel vehicles equipped with several types of emission control hardware. In general, the emission control devices appeared to reduce PAH levels, but the companion mutagen study suggested that the reduction might not always be beneficial. All underground PAH concentrations were below the threshold at which a significant impact on health might be expected, but recent animal exposure studies have indicated that PAHs may not be the primary hazard from chronic diesel fume exposure.
Keywords: Diesels, Underground mining, Polynuclear aromatic hydrocarbons, Emission control, Health, Safety.