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자료유형
학술저널
저자정보
함지영 (국립기상과학원) 이미혜 (고려대학교) 류상범 (국립기상과학원) 이영곤 (국립기상과학원)
저널정보
한국기상학회 대기 대기 Vol.29 No.4
발행연도
2019.11
수록면
429 - 438 (10page)

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이 논문의 연구 히스토리 (8)

초록· 키워드

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Organic carbon (OC) and elemental carbon (EC) in PM<SUB>2.5</SUB> were measured with Sunset Laboratory Model-5 Semi-Continuous OC/EC Field Analyzer by NIOSH/TOT method at Anmyeondo Global Atmosphere Watch (GAW) Regional Station (37° 32"N, 127°19"E) in July and August, 2017. The mean values of OC and EC were 3.7 μg m<SUP>-3</SUP> and 0.7 μg m<SUP>-3</SUP>, respectively. During the study period, the concentrations of reactive gases and aerosol compositions were evidently lower than those of other seasons. It is mostly due to meteorological setting of the northeast Asia, where the influence of continental outflow is at its minimum during this season under southwesterly wind. While the diurnal variation of OC and EC were not clear, the concentrations of O₃, CO, NOx, EC, and OC were evidently enhanced under easterly wind at night from 20:00 to 8:00. However, the high concentration of EC was observed concurrently with CO and NOx under northerly wind during 20:00~24:00. It indicates the influence of thermal power plant and industrial facilities, which was recognized as a major emission source during KORUS-AQ campaign. The diurnal variations of pollutants clearly showed the influence of land-sea breeze, in which OC showed good correlation between EC and O₃ in seabreeze. It is estimated to be the recirculation of pollutants in land-sea breeze cycle. This study suggests that in general, Anmyeondo station serves well as a background monitoring station. However, the variation in meteorological condition is so dynamic that it is primary factor to determine the concentrations of secondary species as well as primary pollutants at Anmyeondo station.

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Abstract
1. 서론
2. 측정
3. 여름철 OC와 EC의 농도 변화 특성
4. 해륙풍에 따른 OC와 EC의 농도 분포 특성
5. OC와 EC의 배출원 추적
6. 안면도의 여름철 배경대기 구분
7. 결론
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2020-453-000105965