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Mining Publication: Submicrometer Elemental Carbon as a Selective Measure of Diesel Particulate Matter in Coal Mines
Keywords: Diesel particulate matter Particulate matter measures
Original creation date: October 2004
Authors: ME Birch, JD Noll
Peer Reviewed Journal Article - October 2004
Download PDF Document (0.86 MB)
NIOSHTIC2 Number: 20025533
J Environ Monit 2004 Oct; 6(10):799-806
A monitoring method for diesel particulate matter was published as Method 5040 by the National Institute for Occupational Safety and Health (NIOSH). Organic and elemental carbon are determined by the method, but elemental carbon (EC) is a better exposure measure. The US Mine Safety and Health Administration (MSHA) proposed use of NIOSH 5040 for compliance determinations in metal and nonmetal mines. MSHA also published a rulemaking for coal mines, but no exposure standard was provided. A standard based on particulate carbon is not considered practical because of coal dust interference. Interference may not be a problem if an appropriate size-selective sampler and EC exposure standard are employed. Submicrometer dust concentrations found in previous surveys of nondieselized, underground coal mines were relatively low. If a large fraction of the submicrometer dust is organic and mineral matter, submicrometer EC concentrations would be much lower than submicrometer mass concentrations. Laboratory and field results reported herein indicate the amount of EC contributed by submicrometer coal dust is minor. In a laboratory test, a submicrometer EC concentration of 31 microg m-3 was found when sampling a respirable coal dust concentration over three times the US compliance limit (2 mg m-3). Laboratory results are consistent with surveys of nondieselized coal mines, where EC results ranged from below the method limit of detection to 18 microg m-3 when size-selective samplers were used to collect dust fractions having particle diameters below 1.5 microm - submicrometer EC concentrations were approximately 7 microg m-3. In dieselized mines, submicrometer EC concentrations are much higher.
Image of publication Submicrometer Elemental Carbon as a Selective Measure of Diesel Particulate Matter in Coal MinesPeer Reviewed Journal Article - October 2004
Download PDF Document (0.86 MB)
NIOSHTIC2 Number: 20025533
J Environ Monit 2004 Oct; 6(10):799-806
See Also
Apparatus for Measuring Diesel Tailpipe Emissions in Underground Mines
Diesel Exhaust Aerosol, Review of Measurement Technology
Differential Pressure as a Measure of Particulate Matter Emissions from Diesel Engines
Instrumentation for Diesel Particulate Matter Emissions Research
Performance Evaluation of Diesel Particulate Filter Technology in the Underground Environment
Real-Time DPM Ambient Monitoring in Underground Mines
Role of Lubrication Oil in Particulate Emissions from a Hydrogen-Powered Internal Combustion Engine
Sampling Results of the Improved SKC� Diesel Particulate Matter Cassette
Size Distribution and Deposition in Human Respiratory Tract: Particle Mass and Number
Technology News 431 - Apparatus for Sampling and Measuring Diesel Tailpipe Emissions
Page last reviewed: October 25, 2016
Page last updated: October 25, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program
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