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NTIS 바로가기한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, v.33 no.5, 2017년, pp.497 - 514
배창한 (아주대학교 환경공학과) , 김은혜 (아주대학교 환경공학과) , 김병욱 (미국 조지아주 환경청) , 김현철 (미국 국립해양대기청) , 우정헌 (건국대학교 신기술융합학과) , 문광주 (국립환경과학원 대기환경연구과) , 신혜정 (국립환경과학원 대기환경연구과) , 송인호 (국립환경과학원 대기환경연구과) , 김순태 (아주대학교 환경공학과)
This study quantitatively analyzes the effects of emission inventory choices on the simulated particulate matter (PM) concentrations and the domestic/foreign contributions in the Seoul Metropolitan Area (SMA) with an air quality forecasting system. The forecasting system is composed of Weather Resea...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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PM10 과소모사의 주요한 원인은 무엇인가? | 국내에서 PM10 관련 예보 모사결과를 보면 예측농도는 관측농도에 비해 과소모사되는 경향이 나타난다 (MSIP, 2015; NIER, 2011a). 일반적으로 대기질 모델의 과소모사 이유로는 기상 입력자료 (Kim et al., 2017a; Jeong et al., 2007)와 배출량 자료 (Digar et al., 2011)가 주요한 원인으로 지목된다. | |
BFM 기법이란 무엇인가? | 국내외 기여도 산정은 BFM 기법을 이용하였다. 이 기법은 기본 배출량 입력자료를 바탕으로 기본 모사를 수행한 결과와 일정 수준의 배출량이 감소된 수정 배출량 입력자료를 바탕으로 재모사된 결과를 이용하여 식 (1)과 같이 민감도 계수를 계산하는 방법이다 (Bartnicki, 1999). 식 (1)에서 Si는 배출원 i에 대한 민감도 계수, C0는 기본 모사농도, C i,x%는 배출원 i에 대해 배출량을 x% 변화시킨 후 재모사된 농도이며, ei,x%는 배출원 i에 대한 배출량 변화율 (x/100)을 의미한다. | |
현재 PM10 예보 등급은 어떻게 구분되는가? | 환경부 및 지자체에서는 국민들이 야외 활동 시 인체에 유해한 PM10 (PM10, Particulate Matter of which diameter is 10 μm or less) 노출을 고려하여 일상 활동 여부를 결정하는 것을 돕고자 대기질 예보시스템을 운영하여 PM10 정보를 제공하고 있다 (MOE, 2012). 현재 PM10 예보는 당일 및 익일에 대하여 일평균 농도를 “좋음” (0~30 μg/m3), “보통” (31~80 μg/m3), “나쁨” (81~150 μg/m3), “매우 나쁨” (151 μg/m3 이상)의 네 가지 농도 등급을 제공하고 있다. 특히, 매우 나쁨 수준의 PM10이 예측된 경우에는 보다 능동적인 PM10 농도 감소를 위해 원인이 되는 배출원을 제어하는 비상저감 대책의 시행이 검토된다 (MOE, 2017). |
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Bae, C.H., B.U. Kim, H.C. Kim, C. You, and S. Kim (2016) Sensitivity of particulate matter in the Seoul Metropolitan Area to emission reduction from source sectors, 17th IUAPPA World Clean Air Congress and 9th CAA Better Air Quality Conference Clean Air for Cities Perspectives and Solutions.
Bae, C.H., C. You, B.U. Kim, H.C. Kim, and S. Kim (2017) $PM_{2.5}$ simulations for the Seoul Metropolitan Area: (III) application of the modeled and observed $PM_{2.5}$ ratio on the contribution estimation, Journal of Korean Society for Atmospheric Environment, 33(5), 445-457. (In Korean with English abstract).
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Kim, H.C., E. Kim, C.H. Bae, J.H. Cho, B.U. Kim, and S. Kim (2017a) Regional contributions to particulate matter concentration in the Seoul Metropolitan Area, Korea: seasonal variation and sensitivity to meteorology and emissions inventory, Atmospheric Chemistry and Physics, 17, 10315-10332, https://doi.org/10.5194/acp-17-10315-2017.
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