State of the art in monitoring respirable mine aerosols.
Volkwein-JC; Thimons-ED; Timko-RJ; Hall-EE; Mischler-SE; Kissell-FN; Vinson-RP
Proceedings of the Eighth International Mine Ventilation Congress, Brisbane, Queensland, Australia, July 6-8, 2005. Carlton, Victoria, Australia: Australasian Institute of Mining and Metallurgy, 2005 Jul; :151-155
The heart of mine ventilation science and technology is the protection of the life and health of the miner. Lung diseases that result from overexposure to various mine aerosols can largely be prevented by maintaining concentrations below prescribed limits. Maintaining safe aerosol concentrations depends, in part, on our ability to know what mine aerosol concentrations are in a timely and accurate way. NIOSH has been developing several new tools to help miners monitor respirable coal dust, silica, and diesel particulate matter (DPM). This paper discusses three main topics. The first topic is the latest results of the person-wearable dust monitor (PDM), developed by Rupprecht and Patashnick under contract. The PDM was tested side by side with conventional samplers at a number of U.S. coal mines. Results showed that the PDM was comparable to conventional samplers. Second, improvements to the dust dosimeter monitoring technique, which includes a new pump with built-in pressure transducer and algorithm to convert differential pressure to dust concentration, have shown good precision. Third, advances in the use of the detector tube technique to monitor tailpipe diesel emissions and ambient DPM show that strong correlations exist between differential pressure measurement and elemental carbon in the samples.
Ventilation; Lung-disease; Occupational-health; Aerosols; Respirable-dust; Silica-dusts; Mining-industry; Underground-mining; Coal-mining; Pneumoconiosis; Coal-workers-pneumoconiosis; Dusts; Coal-miners; Miners; Coal-dust; Dust-samplers; Laboratory-testing; Diesel-emissions
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Research Tools and Approaches: Exposure Assessment Methods
Proceedings of the Eighth International Mine Ventilation Congress