Polynuclear aromatic hydrocarbons and biological activity associated with diesel particulate matter collected in underground coal mines.
Bagley ST; Baumgard KJ; Gratz LD
Diesels in underground mines: measurement and control of particulate emissions. Proceedings: Bureau of Mines Information and Technology Transfer Seminar, Minneapolis, Minnesota, September 29-30, 1992. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9324, 1992 Sep; :40-48
Measurements were made of the concentrations of several polynuclear aromatic hydrocarbons (PAHs) determined in air samples collected in four underground coal mines. The mutagenic activity of diesel particulate matter (DPM) collected in these mines was also examined. In general, the mine haulageway atmosphere levels of DPM, soluble organic fraction (SOF), PAH, and biological activity were statistically similar for all four mines studied. Differences in these levels between the mines were attributable to differences in parameters such as vehicle type, engine operation and maintenance, ventilation efficiencies, and fuel composition. The importance of operating at higher loads with well maintained vehicles was shown by the consistently lower levels of SOF and biologically active PAH at one mine. Considerable variations were noted in the potential contributions of intake air to haulageway DPM, SOF, PAH and activity levels both between and within mines, with the maximum potential contribution to the observed haulageway values typically being no more than 25%. The authors conclude that managing the efficient operation of diesel vehicles can reduce these values.
NIOSH-Grant; Cancer; Control-technology; Air-quality-monitoring; Airborne-particles; Diesel-emissions; Diesel-exhausts; Polycyclic-aromatic-hydrocarbons; Underground-mining; Coal-mining
Biological Sciences Michigan Technological Univ. Dept. Biological Sciences Houghton, MI 49931
Diesels in underground mines: measurement and control of particulate emissions
Michigan Technological University, Houghton, Michigan