외부에서 도시공간으로 유입된 고농도 미세먼지 저감을 위한 공기정화 탑과 차량부착 정화장치의 효과 추정 (Estimating the Reduction Amount of the High Level Particulate Matter Concentrations, Caused by External Transport, by Operating Air Cleaning Tower Buildings or Cleaning Devices Installed on Vehicles i)

서지정보

· 발행기관 : 한국대기환경학회
· 수록지 정보 : 한국대기환경학회지 / 35권 / 3호 / 346 ~ 356페이지
· 저자명 : 김석철, 윤정임

초록

The effectiveness of the direct ambient air cleaning devices such as the fine particle cleaning tower buildings or vehicle installed filter devices is assessed in the metropolitan Seoul area for the periods of the highly polluted air entrain from abroad. A conceptual model similar to the traditional box model is derived to analyze the dynamics of the particulate matter concentration averaged over the modeling domain, here the metropolitan Seoul with those cleaning devices applied. The effectiveness of the devices is sensitively dependent upon the wind speed and mixing height: the lower the mixing height and the lower the wind speed are, the greater the effects are. The overall performance of the cleaning tower buildings is estimated fairly poor, for number of million orders of units are required to reduce the ambient air dust concentration level down to 1/10 of the initial ambient value during night, while number of ten million orders of units, required for day time. The vehicle installed devices appears to be the better option. When the devices are installed to all 200,000 commercial vehicles registered in Seoul, the ambient dust concentrations are reduced by 39% under the calm wind conditions in night, which is about the maximum possible reduction.

영어초록

The effectiveness of the direct ambient air cleaning devices such as the fine particle cleaning tower buildings or vehicle installed filter devices is assessed in the metropolitan Seoul area for the periods of the highly polluted air entrain from abroad. A conceptual model similar to the traditional box model is derived to analyze the dynamics of the particulate matter concentration averaged over the modeling domain, here the metropolitan Seoul with those cleaning devices applied. The effectiveness of the devices is sensitively dependent upon the wind speed and mixing height: the lower the mixing height and the lower the wind speed are, the greater the effects are. The overall performance of the cleaning tower buildings is estimated fairly poor, for number of million orders of units are required to reduce the ambient air dust concentration level down to 1/10 of the initial ambient value during night, while number of ten million orders of units, required for day time. The vehicle installed devices appears to be the better option. When the devices are installed to all 200,000 commercial vehicles registered in Seoul, the ambient dust concentrations are reduced by 39% under the calm wind conditions in night, which is about the maximum possible reduction.

참고자료

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