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Environ Sci Technol

Title:		Evaluation of passive samplers for assessment of community exposure to toxic air contaminants and related pollutants
Author(s):		Mason JB; Fujita EM; Campbell DE; Zielinska B;
Address:		"Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, Nevada 89512, United States"
Journal Title:		Environ Sci Technol
Year:		2011
Volume:		20110215
Issue:		6
Page Number:		2243 - 2249
DOI:		10.1021/es102500v
ISSN/ISBN:		1520-5851 (Electronic) 0013-936X (Linking)
Abstract:		"The precision, accuracy, and sampling rates of Radiello and Ogawa passive samplers were evaluated in the laboratory using a flow-through chamber and under field conditions prior to their use in the 2007 Harbor Community Monitoring Study (HCMS), a saturation monitoring campaign in the communities adjacent to the Ports of Los Angeles and Long Beach. Passive methods included Radiello samplers for volatile organic compounds (benzene, toluene, ethylbenzene, xylenes, 1,3-butadiene), aldehydes (formaldehyde, acetaldehyde, acrolein) and hydrogen sulfide, and Ogawa samplers for nitrogen oxides and sulfur dioxide. Additional experiments were conducted to study the robustness of the passive sampling methods under variable ambient wind speed, sampling duration, and storage time before analysis. Our experimentally determined sampling rates were in agreement with the rates published by Radiello and Ogawa with the following exceptions: we observed a diffusion rate of 22.4 +/- 0.1 mL/min for benzene and 37.4 +/- 1.5 mL/min for ethylbenzene compared to the Radiello published values of 27.8 and 25.7 mL/min, respectively. With few exceptions, the passive monitoring methods measured one-week average ambient concentrations of selected pollutants with sensitivity and precision comparable to conventional monitoring methods averaged over the same period. Radiello Carbograph 4 VOC sampler is not suitable for the collection of 1,3-butadiene due to backdiffusion. Results for the Radiello aldehyde sampler were inconclusive due to lack of reliable reference methods for all carbonyl compounds of interest"
Keywords:		Air Pollutants/*analysis Air Pollution/statistics & numerical data California Environmental Monitoring/instrumentation/*methods Hazardous Substances/*analysis Humans Inhalation Exposure/*analysis/statistics & numerical data Volatile Organic Compounds/anal;
Notes:		"MedlineMason, J Brooks Fujita, Eric M Campbell, David E Zielinska, Barbara eng Evaluation Study Research Support, Non-U.S. Gov't 2011/02/17 Environ Sci Technol. 2011 Mar 15; 45(6):2243-9. doi: 10.1021/es102500v. Epub 2011 Feb 15"