Diesel particulate matter investigations in underground coal mines

A number of underground coal mines are using diesel-powered vehicles as the main source fuel for the transport. The primary concern with these diesel-operated vehicles is the diesel particulate matter (DPM), because it is known to be a carcinogenic agent after prolonged exposure. A well-designed ventilation system is necessary to dilute DPM, so that air quality is maintained to statutory guidelines. This paper outlines details of DPM characteristics, its health effects on miners, coal mine ventilation guidelines and some research investigations that underpin the control of DPM flow in underground coal mines.