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논문 상세정보

미국 서부 해안 IMPROVE 측정소에 대한 대기 중 PM2.5의 오염원 기여도 추정

Estimation of Source Apportionment of Ambient PM2.5 at Western Coastal IMPROVE Site in USA

Abstract

In this study, the chemical compositions of $PM_{2.5}$ samples collected at the Redwood National Park IMPROVE site in California from March 1988 to May 2004 were analyzed to provide source identification and apportionment. A total of 1,640 samples were collected and 33 chemical species were analyzed by particle induced X-ray emission, proton elastic scattering analysis, photon induced X-ray fluorescence, ion chromatography, and thermal optical reflectance methods. Positive matrix factorization (PMF) was used to develop source profiles and to estimate their mass contributions. The PMF modeling identified five sources and the average mass was apportioned to motor vehicle (35.8%, $1.58\;{\mu}g/m^3$), aged sea salt (23.2%, $1.02\;{\mu}g/m^3$), fresh sea salt (21.4%, $0.94\;{\mu}g/m^3$), wood/field burning (16.1%, $0.71\;{\mu}g/m^3$), and airborne soil (3.5%, $0.15\;{\mu}g/m^3$), respectively. To analyze local source impacts from various wind directions, the CPF and NPR analyses were performed using source contribution results with the wind direction values measured at the site. These results suggested that sources of $PM_{2.5}$ are also sources of visibility degradation and then source apportionment studies derived for $PM_{2.5}$ are also used for understanding visibility problem.

저자의 다른 논문

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이 논문을 인용한 문헌 (5)

  1. Hwang, In-Jo 2009. "Estimation of Source Apportionment for Semi-Continuous PM2.5 and Identification of Location for Local Point Sources at the St. Louis Supersite, USA" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 25(2): 154~166 
  2. Hwang, In-Jo 2010. "Source Identification and Estimation of Source Apportionment of Ambient PM2.5 at Western National Park Site in USA" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 26(1): 21~33 
  3. Kim, Do-Kyun ; Lee, Tae-Jung ; Kim, Seong-Cheon ; Kim, Dong-Sool 2012. "Sources Apportionment Estimation of Ambient PM2.5 and Identification of Combustion Sources by Using Concentration Ratios of PAHs" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 28(5): 538~555 
  4. Han, Jihyun ; Kim, Jahan ; Kang, Eunha ; Lee, Meehye ; Shim, Jae-Seol 2013. "Ionic Compositions and Carbonaceous Matter of PM2.5 at Ieodo Ocean Research Station" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 29(6): 701~712 
  5. Hwang, InJo ; Kim, Dong-Sool 2013. "Research Trends of Receptor Models in Korea and Foreign Countries and Improvement Directions for Air Quality Management" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 29(4): 459~476 

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