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Mining Publication: The Effects of Ventilation Controls and Environmental Cabs on Diesel Particulate Matter Concentrations in Some Limestone Mines
Keywords: Cabs Diesel particulate matter Ventilation control
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: June 2008
Authors: JD Noll, LD Patts, RH Grau
Conference Paper - June 2008
Download PDF Document (0.30 MB)
NIOSHTIC2 Number: 20034169
Proceedings of the 12th U.S./North American Mine Ventilation Symposium, Reno, Nevada, June 9-11, 2008. Wallace, Jr. KG. ed., Reno, NV: University of Nevada - Reno, 2008; :463-468
MSHA has promulgated a rule to limit the exposure of underground metal/nonmetal miners to diesel particulate matter (DPM). In May 2008, the final personal exposure limit will be lowered to 160 μg/m3 total carbon. To comply with this rule, mine operators are implementing a variety of control technologies. In this study, two types of control technologies (ventilation and cabs) which are being implemented in limestone mines were investigated. Two stone mines in this study use large diameter propeller fans for main mine ventilation and direct the air to the faces using auxiliary fans, stoppings, and long pillars while bypassing the old mine workings. NIOSH measured for sub-micrometer elemental carbon (EC) using SKC DPM cassettes (analyzed using NIOSH 5040) and a near real time instrument. With the present ventilation and the number and type of vehicles used, the concentration of EC from DPM at the working areas was at or below 400 μg/m3 for both mines and about 166 μg/m3 and 251 μg/m3 at the returns. The real time data showed that the ventilation was reaching the working areas and effectively diluting the DPM. Environmental cabs were also used to reduce DPM exposures in three underground limestone mines. Using NIOSH method 5040 and near-real-time EC instrumentation, NIOSH sampled inside and outside of a loader cab at one of these limestone mines to determine the effectiveness of the cab. The cab was found to be over 90% effective in removing DPM as long as the cab system was properly maintained, and doors and windows were closed.
Image of publication The Effects of Ventilation Controls and Environmental Cabs on Diesel Particulate Matter Concentrations in Some Limestone MinesConference Paper - June 2008
Download PDF Document (0.30 MB)
NIOSHTIC2 Number: 20034169
Proceedings of the 12th U.S./North American Mine Ventilation Symposium, Reno, Nevada, June 9-11, 2008. Wallace, Jr. KG. ed., Reno, NV: University of Nevada - Reno, 2008; :463-468
See Also
Aerosols Emitted in Underground Mine Air by Diesel Engine Fueled with Biodiesel
A Computer Software Program that Estimates Air Quantity Requirements in Large Opening Stone Mines
Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System
Design, Testing, and Modeling of Environmental Enclosures for Controlling Worker Exposure to Airborne Contaminants
Diesel Exhaust Aerosol, Review of Measurement Technology
Effects of MERV 16 Filters and Routine Work Practices on Enclosed Cabs for Reducing Respirable Dust and DPM Exposures in an Underground Limestone Mine
The Effects of Water Emulsified Fuel on Diesel Particulate Matter Concentrations in Underground Mines
Smart Ventilation to Control Airborne Pollutants and Physical Stressors in Underground Metal/Nonmetal Mines
Technology News 486 - Floor Heaters Can Increase Operator's Dust Exposure in Enclosed Cabs
Technology News 514 - The Air Quantity Estimator (AQE): A New Computer Software Tool for Large-opening Mine Ventilation Planning
Page last reviewed: May 1, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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