Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Changhan Bae"'
The impacts of COVID-19, meteorology, and emission control policies on PM2.5 drops in Northeast Asia
Autor:
Yoon-Hee Kang, Seunghee You, Minah Bae, Eunhye Kim, Kyuwon Son, Changhan Bae, Yoonha Kim, Byeong-Uk Kim, Hyun Cheol Kim, Soontae Kim
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Abstract In January 2020, anthropogenic emissions in Northeast Asia reduced due to the COVID-19 outbreak. When outdoor activities of the public were limited, PM2.5 concentrations in China and South Korea between February and March 2020 reduced by −
Externí odkaz:
https://doaj.org/article/31c1738408664d15adb1fb131facbf0e
Autor:
Hyun Cheol Kim, Soontae Kim, Byeong-Uk Kim, Chun-Sil Jin, Songyou Hong, Rokjin Park, Seok-Woo Son, Changhan Bae, MinAh Bae, Chang-Keun Song, Ariel Stein
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Abstract Recent changes of surface particulate matter (PM) concentration in the Seoul Metropolitan Area (SMA), South Korea, are puzzling. The long-term trend of surface PM concentration in the SMA declined in the 2000s, but since 2012 its concentrati
Externí odkaz:
https://doaj.org/article/205509405b124b28b4f94cf15c124f71
Autor:
Hyun Cheol Kim, Changhan Bae, Minah Bae, Okgil Kim, Byeong-Uk Kim, Chul Yoo, Jinsoo Park, Jinsoo Choi, Jae-bum Lee, Barry Lefer, Ariel Stein, Soontae Kim
Publikováno v:
Atmosphere, Vol 11, Iss 8, p 881 (2020)
Nitrogen oxide (NOx) emissions from the South Korean cement industry are investigated with remote-sensing measurements, surface observations, and in situ aircraft measurements. In the Yeongwol, Danyang, and Jecheon regions of central South Korea, six
Externí odkaz:
https://doaj.org/article/2cd5fcf560de497caff22243730bb8f9
Publikováno v:
Atmosphere, Vol 11, Iss 1, p 48 (2019)
This study identified the key chemical components based on an analysis of the seasonal variations of ground level PM2.5 concentrations and its major chemical constituents (sulfate, nitrate, ammonium, organic carbon, and elemental carbon) in the Seoul
Externí odkaz:
https://doaj.org/article/fad74ef7c26b4c47b16d4daff2c30aec
Autor:
Yunseo Park, Changhan Bae, Seo-yeon Park, Hyungcheon Kim, Hyang-kyeong Lee, Su-ah Choi, Seung-joo Song, Chul Gyu Yoo, Kyoung-Bin Lee, Young-Min Kim, Hyeon-ji Lee, Seong-woo Choi, Taekyu Kim, Jeong-pil Jang
Publikováno v:
Asian Journal of Atmospheric Environment, Vol 15, Iss 4, Pp 1-28 (2021)
According to the 2017 National Air Pollutant Emissions Inventory (NEI), air pollutant emissions in the Republic of Korea comprised 817,420 metric tons (hereafter tons) of CO, 1,189,800 tons of NOx, 315,530 tons of SOx, 592,582 tons of TSP, 218,476 to
Publikováno v:
Journal of Korean Society for Atmospheric Environment. 37:410-428
Publikováno v:
Journal of Korean Society for Atmospheric Environment. 36:785-805
Autor:
Soontae Kim, Yoon Ha Kim, Changhan Bae, Minah Bae, Byeong-Uk Kim, Kyuwon Son, Hyun-cheol Kim, Yoon-Hee Kang, Eunhye Kim, Seunghee You
Publikováno v:
Journal of Korean Society for Atmospheric Environment. 36:442-463
The nation-wide PM2 5 concentration from December 2019 to March 2020 (2019 Winter) in South Korea was observed as low as 24 mu g/m(3), showing the lowest seasonal mean PM2 5 concentrations for the last five years Consequently, the PM2 5 concentration
Autor:
Bonyoung Koo, Jeong Hoon Cho, Changhan Bae, Ross L. Beardsley, Lim Seok Chang, Soontae Kim, Yun-Kyu Lim, Myoseon Jang, JinSoo Park, Hee Choon Lee, Zechen Yu
Publikováno v:
ACS Earth and Space Chemistry. 4:1039-1049
The atmospheric mineral aerosol reaction (AMAR) model, which was developed to simulate dust-driven heterogeneous chemistry of SO2 and NOx, was combined with the comprehensive air quality model with...
Autor:
Seog Yeon Cho, Louisa K. Emmons, Cheol-Hee Kim, Charles O. Stanier, Jung Hun Woo, Hyeon Yeong Park, Benjamin Gaubert, Meng Gao, Eunhye Kim, Rokjin J. Park, Sung Soo Shin, Soontae Kim, Gabriele Pfister, Gregory R. Carmichael, Changhan Bae, Beiming Tang, Y. Oak, Hyo-Jung Lee, James H. Crawford, Pablo E. Saide, Shin-Young Park, Yu Jin Jo
Publikováno v:
Elementa: Science of the Anthropocene. 9
The Korea-United States Air Quality (KORUS-AQ) field study was conducted during May–June 2016 to understand the factors controlling air quality in South Korea. Extensive aircraft and ground network observations from the campaign offer an opportunit