Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Estimation of Link-Based Traffic-Related Air Pollutant Emissions and the Exposure Intensity on Pedestrian Near Busy Streets

유동인구 밀집지역 인근의 도로구간별 배출량 산정 및 보행자 노출 강도 평가

  • 이상은 (국립환경과학원 교통환경연구소) ;
  • 신명환 (국립환경과학원 교통환경연구소) ;
  • 이석주 (한국교통연구원 4차 산업혁명 교통연구본부) ;
  • 홍다희 (한국교통연구원 도로교통연구본부) ;
  • 장동익 (한국교통연구원 국가교통빅데이터사업단) ;
  • 길지훈 (국립환경과학원 교통환경연구소) ;
  • 정택호 (국립환경과학원 교통환경연구소) ;
  • 이태우 (국립환경과학원 교통환경연구소) ;
  • 홍유덕 (국립환경과학원 교통환경연구소)
  • Received : 2018.03.29
  • Accepted : 2018.04.20
  • Published : 2018.06.30
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Abstract

The objective of this study is to estimate the level of exposure of traffic-related air pollutants (TRAPs) on the pedestrians in Seoul area. The road network's link-based pollutant emission was calculated by using a set of mobile source emission factor package and associated activity information. The population information, which is the number of pedestrian, was analyzed in conjunction with the link-based traffic emissions in order to quantify exposure level by selected 23 spots. We proposed the Exposure Intensity, which is defined by the amount of traffic emission and the population, to quantify the probability of exposure of pedestrian. Link-based traffic NOx and PM emissions vary by up to four times depending on the location of each spot. The Hot-spots is estimated to be around 1.8 times higher Exposure Intensity than the average of the 23 selected spots. The information of Exposure Intensity of each spot allows us to develop localized policies for air quality and health. Even in the same area, the Exposure Intensity over time also shows a large fluctuation, which gives suggestions for establishing site-specific counter-measures.

Keywords

References

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