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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.2
- 수록면
- 64 - 74 (11page)
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초록· 키워드
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In this study, we have analyzed relationship between the measured Water Soluble Organic Carbon (WSOC) concentrations and the estimated aerosol water content of PM<SUB>10</SUB>(particulate matter with an aerodynamic diameter of less than or equal to 10 ㎛) for the period between September 2006 and August 2007 at Seoul, Korea. Water content of PM<SUB>10</SUB> was estimated by using a gas/particle equilibrium model, Simulating composition of Atmospheric Particles at Equilibrium 2 (SCAPE2).
The WSOC concentrations showed low correlation with Elemental Carbon (EC), but Water Insoluble Organic Carbon (WISOC) were highly correlated with EC. It seemed that hydrophilic groups were produced by secondary formation rather than primary formation. As with the previous studies, WSOC showed good correlation with secondary ions (NO₃⁻, SO₄<SUP>2-</SUP>, NH₄⁺), especially WSOC was highly correlated with NO₃⁻ that is a secondary ion formed by photochemical oxidation from more local sources than SO₄<SUP>2-</SUP>. No apparent correlation between the measured WSOC and estimated water content was observed. However, WSOC showed good correlation with estimated water content when it was assumed that relative humidity was higher than the deliquescence relative humidity of the system. In conclusion, WSOC is correlated with water content by hygroscopic ions and it is expected that nitrate play an important role among the water content and WSOC.
The WSOC concentrations showed low correlation with Elemental Carbon (EC), but Water Insoluble Organic Carbon (WISOC) were highly correlated with EC. It seemed that hydrophilic groups were produced by secondary formation rather than primary formation. As with the previous studies, WSOC showed good correlation with secondary ions (NO₃⁻, SO₄<SUP>2-</SUP>, NH₄⁺), especially WSOC was highly correlated with NO₃⁻ that is a secondary ion formed by photochemical oxidation from more local sources than SO₄<SUP>2-</SUP>. No apparent correlation between the measured WSOC and estimated water content was observed. However, WSOC showed good correlation with estimated water content when it was assumed that relative humidity was higher than the deliquescence relative humidity of the system. In conclusion, WSOC is correlated with water content by hygroscopic ions and it is expected that nitrate play an important role among the water content and WSOC.
목차
Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (25)
참고문헌 신청
Birch, M.E. and R.A. Cary (1996) Elemental carbon-based method for monitoring occupational exposures to particulate diesel exhaust, Aerosol Science and Technology, 25(3), 221-241.
Bromley, L.A. (1973) Thermodynamic properties of strong electrolytes in aqueous solutions, AIChE Journal, 19, 313-320.
Choi, E.K. and Y.P. Kim (2004) Major factors affecting PM2.5 water content in Seoul and Gosan, Journal of Korean Society for Atmospheric Environment, 20(6), 803-810. (in Korean with English abstract)
Choi, N.R., J.Y. Lee, C.H. Jung, S.Y. Lee, S.M. Yi, and Y.P. Kim (2015) Concentrations and characteristics of carbonaceous compounds in PM10 over Seoul: measurement between 2006 and 2007, Journal of Korean Society for Atmospheric Environment, 31(4), 345-355. (in Korean with English abstract)
Core Writing Team, R.K. Pachauri, and A. Reisinger (2007) Intergovernmental panel on climate change fourth assessment report, IPCC, Geneva, Switzerland.
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UCI(KEPA) : I410-ECN-0101-2017-539-002318959