Evaluation of the contribution of light-duty vehicles to the underground atmosphere diesel emissions burden : Phase I

The characterization of diesel particulate matter (DPM) exhaust emissions from light-duty (LD) and heavy-duty (HD) vehicles in a metal mine and the estimation of the relative contributions of both types of vehicles to the overall underground contaminant burden represent the objectives of the study. The first phase of the project involves the selection of the mine, the characterization of the mine's diesel fleet, duty cycle assessment method, raw exhaust DPM sampling issues and the determination of the cross-section of the fleet which is to be tested during phase 2 of the project. This document relates to phase 1. The evaluation of high-efficiency diesel filtration technology from the perspective of impact on the underground environment is a major concern of the Diesel Emissions Evaluation Program funding this study, as well as issues concerning its implementation. The Falconbridge Onaping operation was selected for the purpose of the study. The data concerning the diesel fleet is included in tables in the document. A large amount of underground coordination will be required for phase 2 of the project. 11 refs., 7 tabs., 5 figs