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Mining Publication: Effects of Sampling Artifacts on Occupational Samples of Diesel Particulate Matter
Keywords: Diesel particulate matter Sampling Total carbon
Original creation date: July 2008
Authors: JD Noll, ME Birch
Peer Reviewed Journal Article - July 2008
Download PDF Document (0.12 MB)
NIOSHTIC2 Number: 20034218
Environ Sci Technol 2008 Jul; 42(14):5223-5228
Total carbon (TC) is sometimes used to measure or characterize diesel particulate matter (DPM) in occupational settings such as underground mines. DPM samples are collected on quartz fiber filters. When using quartz fiber filters, adsorption of gas phase organic carbon (OC) has been reported, causing a positive bias in the particulate TIC results (adsorption artifact). Most of the data on the sampling artifacts and corrections apply to environmental air sampling, where samples are collected at a much higher filter face velocity and the OC concentrations are generally much lower relative to occupational sampling. In this study, we investigated the effects of adsorption artifact on samples from occupational settings. Samples were collected with and without denuders to determine the amount of gas phase OC collected and the accuracy of certain corrections. In underground stone mines, the adsorption artifact was found to positively bias the particulate TC by greater than 20% for filter loadings below 25 μg/cm2 TC (8-h time weighted average = 262 μg/m3). The tandem filter correction reduced the effect of the artifact, as high as 60% of the TC value, to less than 11% for laboratory data. It also significantly reduced the effect of the artifact obtained for field samples.
Image of publication Effects of Sampling Artifacts on Occupational Samples of Diesel Particulate MatterPeer Reviewed Journal Article - July 2008
Download PDF Document (0.12 MB)
NIOSHTIC2 Number: 20034218
Environ Sci Technol 2008 Jul; 42(14):5223-5228
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
The Effects of Water Emulsified Fuel on Diesel Particulate Matter Concentrations in Underground Mines
Instrumentation for Diesel Particulate Matter Emissions Research
A Predictive Model for Elemental Carbon, Organic Carbon and Total Carbon Based on Laser Induced Breakdown Spectroscopy Measurements of Filter-collected Diesel Particulate Matter
The Relationship between Elemental Carbon and Diesel Particulate Matter in Underground Metal/Nonmetal Mines in the United States and Coal Mines in Australia
Relationship Between Elemental Carbon, Total Carbon, and Diesel Particulate Matter in Several Underground Metal/nonmetal Mines
Rock Dusting Considerations in Underground Coal Mines
Technology News 514 - The Air Quantity Estimator (AQE): A New Computer Software Tool for Large-opening Mine Ventilation Planning
Toward developing a new occupational exposure metric approach for characterization of diesel aerosols
Page last reviewed: November 16, 2015
Page last updated: November 16, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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