백령도 및 서울 대기오염집중측정소 에어로졸 질량 분석기 자료를 이용한 대기 중 에어로졸 화학적 특성 연구 (Chemical Characteristics of PM1 using Aerosol Mass Spectrometer at Baengnyeong Island and Seoul Metropolitan Area)

서지정보

· 발행기관 : 한국대기환경학회
· 수록지 정보 : 한국대기환경학회지 / 34권 / 3호 / 430 ~ 446페이지
· 저자명 : 박태현, 반지희, 강석원, 김영성, 신혜정, 박종성, 박승명, 문광주, 임용재, 이민도, 이상보, 김정수, 김순태, 배창한, 이용환, 이태형

초록

To improve understanding of the sources and chemical properties of particulate pollutants on the Korean Peninsula, An Aerodyne High Resolution Time of Flight Aerosol Mass Spectrometer (HR-ToF-AMS) measured non-refractory fine particle (NR-PM1) from 2013 to 2015 at Baengnyeong Island and Seoul metropolitan area (SMA), Korea. The chemical composition of NR-PM1 in Baengnyeong island was dominated by organics and sulfate in the range of 36~38% for 3 years, and the organics were the dominant species in the range of 44~55% of NR-PM1 in Seoul metropolitan area. The sulfate was found to be more than 85% of the anthropogenic origin in the both areas of Baengnyeong and SMA. Ratio of gas to particle partition of sulfate and nitrate were observed in both areas as more than 0.6 and 0.8, respectively, representing potential for formation of additional particulate sulfate and nitrate. The high-resolution spectra of organic aerosol (OA) were separated by three factors which were Primary OA (POA), Semi-Volatility Oxygenated Organic Aerosol (SV-OOA), and Low-Volatility OOA (LV-OOA) using positive matrix factorization (PMF) analysis. The fraction of oxygenated OA (SOA, ≒OOA=SV-OOA +LV-OOA) was bigger than the fraction of POA in NR-PM1. The POA fraction of OA in Seoul is higher than it of Baengnyeong Island, because Seoul has a relatively large number of primary pollutants, such as gasoline or diesel vehicle, factories, energy facilities. Potential source contribution function (PSCF) analysis revealed that transport from eastern China, an industrial area with high emissions, was associated with high particulate sulfate and organic concentrations at the Baengnyeong and SMA sites. PSCF also presents that the ship emissions on the Yellow Sea was associated with high particulate sulfate concentrations at the measurement sites.

영어초록

To improve understanding of the sources and chemical properties of particulate pollutants on the Korean Peninsula, An Aerodyne High Resolution Time of Flight Aerosol Mass Spectrometer (HR-ToF-AMS) measured non-refractory fine particle (NR-PM1) from 2013 to 2015 at Baengnyeong Island and Seoul metropolitan area (SMA), Korea. The chemical composition of NR-PM1 in Baengnyeong island was dominated by organics and sulfate in the range of 36~38% for 3 years, and the organics were the dominant species in the range of 44~55% of NR-PM1 in Seoul metropolitan area. The sulfate was found to be more than 85% of the anthropogenic origin in the both areas of Baengnyeong and SMA. Ratio of gas to particle partition of sulfate and nitrate were observed in both areas as more than 0.6 and 0.8, respectively, representing potential for formation of additional particulate sulfate and nitrate. The high-resolution spectra of organic aerosol (OA) were separated by three factors which were Primary OA (POA), Semi-Volatility Oxygenated Organic Aerosol (SV-OOA), and Low-Volatility OOA (LV-OOA) using positive matrix factorization (PMF) analysis. The fraction of oxygenated OA (SOA, ≒OOA=SV-OOA +LV-OOA) was bigger than the fraction of POA in NR-PM1. The POA fraction of OA in Seoul is higher than it of Baengnyeong Island, because Seoul has a relatively large number of primary pollutants, such as gasoline or diesel vehicle, factories, energy facilities. Potential source contribution function (PSCF) analysis revealed that transport from eastern China, an industrial area with high emissions, was associated with high particulate sulfate and organic concentrations at the Baengnyeong and SMA sites. PSCF also presents that the ship emissions on the Yellow Sea was associated with high particulate sulfate concentrations at the measurement sites.

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