Contributions of international sources to PM2.5 in South Korea

17314 7 94636 2 275449 document 94636 1-s2.0-S1352231021003642-main.pdf application/pdf 63f31c646f72c3074744d32eacc2cc03 MD5 10969758 2021-07-12 07:13:14 https://pure.iiasa.ac.at/id/eprint/17314/1/1-s2.0-S1352231021003642-main.pdf 17314 1 1 application/pdf text en public cc_by_nc_nd_4

1-s2.0-S1352231021003642-main.pdf

published 94644 1 275470 document 94644 indexcodes.txt text/x-asm 5ac4702c852aec017c91f4f624e84958 MD5 9878 2021-07-12 07:21:02 https://pure.iiasa.ac.at/id/eprint/17314/2/indexcodes.txt 17314 2 2 text/x-asm other Generate index codes conversion from text to indexcodes en public

indexcodes.txt

lightbox.jpg

preview.jpg

medium.jpg

small.jpg

http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/94636 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/94636 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/94636 archive 353 disk0/00/01/73/14 2021-07-12 07:15:26 2021-08-27 17:35:00 2021-07-12 07:15:26 article show Kumar N. Park R.J. Jeong J.I. Woo J.-H. Kim Y. 8829 0000-0002-5053-5068 Johnson J. Yarwood G. Kang S. Chun S. Knipping E. Contributions of international sources to PM2.5 in South Korea pub ECE ECEPM Korea air quality; Emissions controls; Fine particulate matter (PM2.5); Source contributions; International transport of pollution The air quality in Republic of Korea, especially in cities such as Seoul, has been a serious public health concern over the years. The key pollutant in the atmosphere leading to poor air quality in Korea is fine particulate matter (PM2.5). Here, we use a 3-D global chemistry model (GEOS-Chem) to conduct source attribution to PM2.5 in Korea from international and domestic emissions. The modeling was done for 2015 and 2016 to account for different meteorological conditions. We ran the GEOS-Chem model for both years, conducted model evaluation using ground and aloft observations, and then conducted sensitivity simulations without domestic anthropogenic emissions and Chinese anthropogenic emissions, respectively. Results show that the Chinese influence on PM2.5 in Korea varies from month to month with the highest contribution during spring when observed concentrations are also the highest. Chinese contributions to PM2.5 concentrations in South Korea reach a maximum of up to ~60% in January and February and gradually decrease until August when they reach a minimum at about 20%. On an annual basis, our analysis estimated that in 2016, Chinese anthropogenic emissions contributed 45% to PM2.5 in South Korea. The 2016 contribution from China was generally 3–5% lower than in 2015 because of emissions reductions in China. Compared to the Chinese contribution, the rest of the world contributions (which also include contributions from natural emissions worldwide) were minor except for summer in the South Sea. 2021-09-15 published Elsevier 10.1016/j.atmosenv.2021.118542 3163 public Atmospheric Environment 261 e118542 TRUE 1873-2844 FALSE no info:eu-repo/semantics/article