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J Air Waste Manag Assoc


Title:Determination of fine particulate semi-volatile organic material at three eastern U.S. sampling sites
Author(s):Warner KS; Eatough DJ; Stockburger L;
Address:"Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah, USA"
Journal Title:J Air Waste Manag Assoc
Year:2001
Volume:51
Issue:9
Page Number:1302 - 1308
DOI: 10.1080/10473289.2001.10464357
ISSN/ISBN:1096-2247 (Print) 1096-2247 (Linking)
Abstract:"Correct assessment of fine particulate carbonaceous material as a function of particle size is, in part, dependent on the determination of semi-volatile compounds, which can be lost from particles during sampling. This study gives results obtained for the collection of fine particulate carbonaceous material at three eastern U.S. sampling sites [Philadelphia, PA; Shenandoah National Park, VA; and Research Triangle Park (RTP), NC] using diffusion denuder technology. The diffusion denuder samplers allow for the determination of fine particulate organic material with no artifacts, due to the loss of semi-volatile organic particulate compounds, or collection of gas-phase organic compounds by the quartz filter during sampling. The results show that an average of 41, 43, and 59% of fine particulate organic material was lost as volatilized semi-volatile organic material during collection of particles on a filter at Philadelphia, RTP, and Shenandoah, respectively. The particle size distribution of carbonaceous material retained by a filter and lost from a filter during sampling was obtained for the samples collected at Philadelphia and Shenandoah. The carbonaceous material retained by the particles during sampling was found predominantly in particles smaller than 0.4 microm in aerodynamic diameter. In contrast, the semi-volatile organic material lost from the particles during sampling had a mass median diameter of approximately 0.5 microm"
Keywords:Air Pollutants/*analysis Environmental Monitoring/*instrumentation Filtration Organic Chemicals/*analysis Particle Size Quartz Sensitivity and Specificity Volatilization;
Notes:"MedlineWarner, K S Eatough, D J Stockburger, L eng Evaluation Study Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2001/09/29 J Air Waste Manag Assoc. 2001 Sep; 51(9):1302-8. doi: 10.1080/10473289.2001.10464357"

 
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