Statistical Comparison of Diesel Particulate Matter Measurement Methods

Details

• Personal Author:
  Ramachandran G ; Watts, Winthrop F. Jr.
• Description:
  Four methods are used to quantify diesel particulate matter (DPM) in the mine environment: respirable combustible dust sampling (RCD), size selective sampling with gravimetric analysis (SSG), respirable dust sampling with elemental carbon (EC) analysis, and respirable dust sampling with total carbon (TC) analysis. The authors assembled data from three underground mine studies to statistically compare these methods. The sampling protocol used in each study was similar. For all the four methods, samples were collected in triplicate at three locations--upwind and downwind of the diesel scoop and on the scoop. The methods were compared with respect to their precision, selectivity, sensitivity, and LOD, as well as their limitations in measuring DPM concentrations. This constitutes a meta-analysis of the available data and provides information over a broader range of mining conditions and DPM concentrations than any of the individual studies. The weighing imprecision for the SSG method is almost twice that for the RCD technique. The imprecision of the EC and TC methods are a function of the mass loading, and EC has a lower imprecision than TC. The EC method was used as the reference "gold standard" against which the other methods were evaluated. The RCD, SSG, and TC methods exhibited substantial levels of interference, leading to much higher minimum concentrations that can be measured by these methods. Of the three, the SSG method has the highest level of interference, primarily from nondiesel material that is collected in the <0.8 µm size range. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution, Indoor Environmental Exposure Environmental Monitoring Environmental Pollution Hazardous Substances Inhalation Exposure Lung Mining Occupational Exposure Occupational Health Particulate Matter Personal Protective Equipment Quality Control Respiratory System Risk Assessment Risk Factors Safety Vehicle Emissions Workplace

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• Keywords:
  Air-contamination Airborne-particles Author Keywords: Diesel Particulate Matter Biohazards Biological-effects Control-technology Diesel-emissions Diesel-exhausts Environmental-exposure Environmental-hazards Exposure-assessment Exposure-levels Exposure-methods Inhalants Inhalation-studies Interference Limit Of Detection Lung-irritants Mathematical-models Mining-equipment Mining-industry Occupational-exposure Occupational-hazards Particle-aerodynamics Particulate-sampling-methods Particulates Physiological-effects Physiological-measurements Pollutants Precision Protective-measures Qualitative-analysis Quality-standards Quantitative-analysis Risk-analysis Risk-factors Sampling-methods Sensitivity Underground-mining Work-areas Work-environment Work-operations Work-performance Work-practices Workplace-studies

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• ISSN:
  0002-8894
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Minnesota ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  329-337
• Volume:
  64
• Issue:
  3
• NIOSHTIC Number:
  nn:20037406
• Citation:
  Am Ind Hyg Assoc J 2003 May/Jun; 64(3):329-337
• Contact Point Address:
  Gurumurthy Ramachandran, Division of Environmental and Occupational Health, School of Public Health, University of Minnesota, Mayo Mail Code 807, 420 Delaware St. S.E., Minneapolis, MN 55455
• Email:
  ramac002@umn.edu
• Federal Fiscal Year:
  2003
• Performing Organization:
  University of Minnesota Twin Cities
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  American Industrial Hygiene Association Journal
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8c2ee8284ea922c7001533f80dc49b894d4318b157bf8136608da6eb1a1962ad48abfd7c0580173af7332210de6124bd191ead892db9d5cc78c6e9262b7425ee
• Download URL:
  https://stacks.cdc.gov/view/cdc/188504/cdc_188504_DS1.pdf
• File Type:
  [PDF - 378.60 KB ]