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Source Apportionment of PM2.5 in the Southeastern United States Using Solvent-Extractable Organic Compounds as Tracers
Abstract
A chemical mass balance (CMB) receptor model using particle-phase organic compounds as tracers is applied to apportion the primary source contributions to fine particulate matter and fine particulate organic carbon concentrations in the southeastern United States to determine the seasonal variability of these concentrations. Source contributions to particles with aerodynamic diameter < or =2.5 microm (PM2.5) collected from four urban and four rural/suburban sites in AL, FL, GA, and MS during April, July, and October 1999 and January 2000 are calculated and presented. Organic compounds in monthly composite samples at each site are identified and quantified by gas chromatography/mass spectrometry and are used as molecular markers in the CMB model. The major contributors to identified PM2.5 organic carbon concentrations at these sites in the southeastern United States include wood combustion (25-66%), diesel exhaust (14-30%), meat cooking (5-12%), and gasoline-powered motor vehicle exhaust (0-10%), as well as smaller but statistically significant contributions from natural gas combustion, paved road dust, and vegetative detritus. The primary sources determined in the present study when added to secondary aerosol formation account for on average 89% of PM2.5 mass concentrations, with the major contributors to PM2.5 mass as secondary sulfate (30+/-6%), wood combustion (15+/-12%), diesel exhaust (16+/-7%), secondary ammonium (8+/-2%), secondary nitrate (4+/-3%), meat cooking (3+/-2%), gasoline-powered motor vehicle exhaust (2+/-2%), and road dust (2+/-2%). Distinct seasonality is observed in source contributions, including higher contributions from wood combustion during the colder months of October and January. In addition, higher percentages of unexplained fine organic carbon concentrations are observed in July, which are likely due to an increase in secondary organic aerosol formation during the summer season.
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Cited by
Bounding the role of black carbon in the climate system: A scientific assessment
Bond, T. C., Doherty, S. J., Fahey, D. W., Forster, P. M., Berntsen, T., DeAngelo, B. J., Flanner, M. G., Ghan, S., Kärcher, B., Koch, D., et al. (2013) · Journal of Geophysical Research: Atmospheres · doi:10.1002/jgrd.50171 · Cited by 6,385
Abdullahi, K. L., Delgado-Saborit, J. M., & Harrison, R. M. (2013) · Atmospheric Environment · doi:10.1016/j.atmosenv.2013.01.061 · Cited by 565
Puxbaum, H., Caseiro, A., Sánchez‐Ochoa, A., Kasper‐Giebl, A., Claeys, M., Gelencsér, A., Legrand, M., Preunkert, S., & Pio, C. (2007) · Journal of Geophysical Research: Atmospheres · doi:10.1029/2006jd008114 · Cited by 480
A review of the anthropogenic influence on biogenic secondary organic aerosol
Hoyle, C. R., Boy, M., Donahue, N. M., Fry, J. L., Glasius, M., Guenther, A., Hallar, A. G., Huff Hartz, K., Petters, M. D., Petäjä, T., et al. (2011) · Atmospheric Chemistry and Physics · doi:10.5194/acp-11-321-2011 · Cited by 306
Pham, D. ‐., Boussouira, B., Moyal, D., & Nguyen, Q. L. (2015) · International Journal of Cosmetic Science · doi:10.1111/ics.12208 · Cited by 89
Metadata
- Authors
- Zheng, M., Cass, G. R., Schauer, J. J., & Edgerton, E. S.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-05-04
- Volume
- 36
- Issue
- 11
- Pages
- 2361-2371
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2063165760
- Cited by
- 491
- References
- 0
- FWCI
- 12.33
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zheng, M., Cass, G. R., Schauer, J. J., & Edgerton, E. S. (2002). Source Apportionment of PM2.5 in the Southeastern United States Using Solvent-Extractable Organic Compounds as Tracers. Environmental Science & Technology. https://doi.org/10.1021/es011275x
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