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논문 기본 정보

자료유형
학술저널
저자정보
박현영 (인하대학교) 조석연 (인하대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제36권 제3호
발행연도
2020.6
수록면
375 - 387 (13page)
DOI
10.5572/KOSAE.2020.36.3.375

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초록· 키워드

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The secondary inorganic aerosols and their corresponding gaseous species were modeled by CMAQ (Community Multi-scale Air Quality Model) and validated by using monitoring data obtained from the dry deposition monitoring network for the year of 2015. And the effects of NH₃ emission reduction on secondary inorganic aerosols were also modeled and evaluated. The dry deposition monitoring network consists of 27 urban stations, 13 rural stations, and 1 background station and monitors NH₃, HNO₃, sulfate, nitrate, ammonium, and miscellaneous sea salt and mineral species. The CMAQ simulation results compare fairly well with total NH₃, which is sum of NH₃ and ammonium, and total HNO₃, which is sum of HNO₃ and nitrate, gaseous NH₃ measured by the dry deposition monitoring network. However, the CMAQ and near real-time monitoring method severely overestimate the nitrate during the summer because of not sufficiently reflecting evaporative losses typically occurring in filter based sampling methods. As the NH₃ emission in Korea was reduced by 30%, the calculated ambient NH₃ concentrations in Seoul, Busan, Daegu, Gwangju were lowered in a similar rate in the winter. The calculated averages of ammonium and nitrate concentrations in these four cities were also lowered by 7.1% and 7.4%, respectively. This low response of ammonium and nitrate concentrations to the NH₃ emission reduction implied that the NH₃ existed in excess to HNO₃. And the adjusted Gas Ratio exceeded one, confirming the excess of NH₃. In addition, the calculated average of sulfate was lowered by 3.6% as the decreased pH and increased hydrogen ion concentrations slowed the in-cloud sulfate production.

목차

Abstract
1. 서론
2. 연구 방법
3. 모사결과와 관측자료 비교
4. NH₃ 배출량 감축이 2차 무기 에어로졸에 미치는 영향 평가
5. 결론
References

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