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Comprehensive study of a long-lasting severe haze in Seoul megacity and its impacts on fine particulate matter and health

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Abstract
A long-lasting severe haze event was observed over the Seoul metropolitan region (SMR: Seoul, Incheon, and Gyeonggi-do), South Korea, in the winter of 2013 (January 12-16). We comprehensively investigated the atmospheric processes affecting particulate matter (PM) distributions during the haze event, as well as its impact on human health in the study area. These analyses were performed based on meteorological and PM observations and numerical modeling, which included the WRF-CMAQ modeling system and the Environmental Benefits Mapping and Analysis Program-Community Edition (BenMAP-CE). High PM10 concentrations during the haze event were mostly observed in the western and southern parts of the SMR. Significant differences (60-70 mu g m(-3)) in the mean PM2.5 concentrations for haze and non-haze days were predicted mainly in the west-northwest areas of SMR. This might be primarily due to the pollutant transport (horizontal and vertical) from large emission sources (e.g., Chinese emissions) and, in part, their local accumulation (by local emissions) under high-pressure conditions and slow-moving air flows (i.e., blocking effect) around SMR. In addition, the enhanced PM2.5 concentrations in the study area during the haze event led to an increase in the number of premature deaths. (C) 2020 Elsevier Ltd. All rights reserved.
Author(s)
한성범송상근손장호강윤희방진희오인보
Issued Date
2021
Type
Article
Keyword
Long-lasting severe hazePM2.5Human healthSlow-moving air flowSMRBenMAP-CE
DOI
10.1016/j.chemosphere.2020.129369
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9490
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_crossref_primary_10_1016_j_chemosphere_2020_129369&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Comprehensive%20study%20of%20a%20long-lasting%20severe%20haze%20in%20Seoul%20megacity%20and%20its%20impacts%20on%20fine%20particulate%20matter%20and%20health&offset=0&pcAvailability=true
Publisher
CHEMOSPHERE
Location
영국
Language
영어
ISSN
0045-6535
Citation Volume
268
Citation Start Page
0
Citation End Page
0
Appears in Collections:
Natural Science > ETC
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