Source Identification and Estimation of Source Apportionment of Ambient PM2.5 at Western National Park Site in USA

미국 서부 국립공원 지역의 미국 서부 국립공원 지역의 PM2.5에 대한 오염원 확인 및 기여도 추정

  • Hwang, In-Jo (Department of Environmental Engineering, Daegu University)
  • 황인조 (대구대학교 환경공학과)
  • Published : 2010.02.28


The objective of this study was to estimate the $PM_{2.5}$ source apportionment at the Pinnacles National Monument IMPROVE site in western coastal USA. The PMF was applied to identify the existing sources and apportion the $PM_{2.5}$ mass to each source. To analyze local source impacts from various wind directions, the NPR analysis was performed using source contribution results with the wind direction values measured at the site. Also, PSCF was applied to identify the locations by point sources relative to the back trajectories. A total of 1,634 samples were collected from March 1988 to May 2004 by IMPROVE sampler and 32 chemical species were analyzed by PIXE, PESA, XRF, IC, and TOR methods. The PMF modeling identified seven sources and the average mass was apportioned to gasoline vehicle, secondary sulfate, aged sea salt, secondary nitrate, wood/field burning, diesel emission, and soil, respectively. In this study, the average mass was apportioned to gasoline vehicle (33.0%), secondary sulfate (25.7%), aged sea salt (17.8%), and secondary nitrate (10.1%). Also, this study suggests the possible role for source apportionment study of $PM_{2.5}$ at similar areas such as wildness, national park, and coastal areas in Korea.


  1. U.S. EPA (1997) National Ambient Air Quality Standards for Particulate Matter; Final Rule, 40 CFR Parts 50, 53, and 58; Fed. Regist., July 18.
  2. U.S. EPA (1999) Particulate Matter ($PM_{2.5}$) Speciation Guidance (Final Draft), U.S. Environmental Protection Agency, Research Triangle Park, NC.
  3. U.S. EPA (2005) US EPA Office of Air and Radiation, NEI Database.
  4. U.S. EPA (1998) Guideline on Speciated Particulate Monitoring, U.S. Environmental Protection Agency, Research Triangle Park, NC.
  5. Van Vaeck, L., K. Van Cauwenberghe, and J. Janssens (1984) The gas-particle distribution of organic aerosol constituents: measurement of the volatilization artifact in Hi-vol cascade impactor sampling, Atmospheric Environment, 18, 417-430.
  6. Watson, J.G., J.C. Chow, D.H. Lowenthal, L.C. Pritchett, and C.A. Frazier, (1994) Differences in the carbon composition of source profiles for diesel and gasoline powered vehicles, Atmospheric Environment, 28, 2493-2505.
  7. Zhou, L., P.K. Hopke, P. Paatero, J.M. Ondov, J.P. Pancras, N.J. Pekney, and C.I. Davidson (2004) Advanced factor analysis for multiple time resolution aerosol composition data, Atmospheric Environment, 38, 4909-4920.
  8. Chow, J.C., J.G. Watson, D. Crow, and D.H. Lowenthal (2001) Comparison of IMPROVE and NIOSH carbon measurements, Aerosol Science and Technology, 34, 23- 34.
  9. Falke, S.R., R.B. Husar, and B.A. Schichtel (2001) Fusion of SeaWiFS and TOMS satellite data with surface observations and topographic data during extreme aerosl events, Journal of the Air and Waste Management Association, 51, 1579-1585.
  10. Henry, R.C., Y.-S. Chang, and C.H. Spiegelman (2002) Location nearby sources of air pollution by nonparametric regression of atmospheric concentrations on wind direction, Atmospheric Environment, 36, 2237-2244.
  11. Hopke, P.K., I.J. Hwang, E. Kim, and J.H. Lee (2006) Analyses of PM-related measurements for the impacts of ships, Final Report, ARB Contract 04-326.
  12. Huffman, H.D. (1996) Comparison of the light absorption coefficient and carbon measures for remote aerosols: an independent analysis of data from the IMPROVE network, Atmospheric Environment, 30(1), 73-83.
  13. Hwang, I.J. (2009) Estimation of source apportionment for semi-continuous $PM_{2.5}$ and idenfication of location for local point sources at the St. Louis Supersite, USA, Korean J. of Atmos. Environ., 25(2), 154-166. (in Korean with English abstract)
  14. Hwang, I.J. and P.K. Hopke (2006) Comparison of source apportionments of fine particulate matter at two San Jose STN sites, Journal of the Air and Waste Management Association, 56, 1287-1300.
  15. Hwang, I.J. and P.K. Hopke (2007) Estimation of source apportionment and potential source locations of $PM_{2.5}$ at a west coastal IMPROVE site, Atmospheric Environment, 41, 506-518.
  16. Hwang, I.J., D.S. Kim, and P.K. Hopke (2008) Estimation of source apportionment of ambient $PM_{2.5}$ at western coastal IMPROVE site in USA, Korean J. of Atmos. Environ., 24(1), 30-42. (in Korean with English abstract)
  17. Kim, E. and P.K. Hopke (2004) Comparison between conditional probability function and nonparametric regression for fine particle source directions, Atmospheric Environment, 38, 4667-4673.
  18. Kim, E. and P.K. Hopke (2004a) Source apportionment of fine particles in Washington, DC, utilizing temperatureresolved carbon fractions, Journal of the Air and Waste Management Association, 54, 773-785.
  19. Kim, E. and P.K. Hopke (2005) Improving source apportionment of fine particles in the eastern United States utilizing temperature-resolved carbon fractions, Journal of the Air and Waste Management Association, 55, 1456-1463.
  20. Liu, W., P.K. Hopke, and R.A. VanCuren (2003) Origins of fine aerosol mass in the western United States using positive matrix factorization, Journal of Geophysical Research, 108(D23), 4716.
  21. Malm, W.C., J.F. Sisler, D. Huffman, R.A. Eldred, and T.A. Cahill (1994) Spatial and seasonal trends in particle concentration and optical extinction in the United States, Journal of Geophysical Research, 99(D1), 1347-1370.
  22. Paatero, P. (1997) Least squares formulation of robust nonnegative factor analysis, Chemometrics and Intelligent Laboratory Systems, 37, 23-35.
  23. Polissar, A.V., P.K. Hopke, P. Paatero, W.C. Malm, and J.F. Sisler (1998) Atmospheric aerosol over Alaska 2. Elemental composition and sources, Journal of Geophysical Research, 103(D15), 19045-19057.
  24. Seinfeld, J.H. and S.N. Pandis (1998) Atmospheric Chemistry and Physics, from Air Pollution to Climate Change, John Wiley & Sons, New York.

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