Authors: Menetrez, M. Y.¹; Foarde, K. K.²; Esch, R. K.²; Dean, T. R.¹; Betancourt, D. A.¹; Moore, S. A.¹; Svendsen, E. R.³; Yeatts, K.⁴

Source: Aerosol Science and Technology, Volume 41, Number 9, September 2007 , pp. 884-893(10)

Publisher: Taylor and Francis Ltd

Abstract:

Monitoring of ambient bioaerosol concentrations through the characterization of outdoor particulate matter (PM) has only been performed on a limited basis in North Carolina (NC) and was the goal of this research. Ambient samples of PM2.5 (fine) and PM10-2.5 (coarse) were collected for a six-month period and analyzed for mold, endotoxins and protein. PM2.5 and PM10-2.5 concentrations of these bioaerosols were reported as a function of PM mass, as well as volume of air sampled. The mass of PM2.5 was almost twice that of the PM10-2.5; however, the protein and endotoxin masses were greater in the coarse than the fine PM indicating an enrichment in the coarse PM. The protein and mold results demonstrated a seasonal pattern, both being higher in the summer than in the winter. Except for an occasional excursion, the endotoxin data remained fairly constant throughout the six months of the study.

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Document Type: Research article

DOI: http://dx.doi.org/10.1080/02786820701523083

Affiliations: 1: Air Pollution Prevention and Control Division, U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, North Carolina, USA 2: Microbial and Molecular Biology Department, Research Triangle Institute, North Carolina, USA 3: Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA 4: National Health and Environmental Effects Research Laboratory, Human Studies, Division-Epidemiology and Biomarkers Branch, U.S. EPA, MD-58-A, Research Triangle Park, North Carolina, USA

Publication date: 2007-09-01

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