Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2020.104948 |
Changes in inorganic aerosol compositions over the Yellow Sea area from impact of Chinese emissions mitigation | |
Jo, Yu-Jin1; Lee, Hyo-Jung2; Jo, Hyun-Young2; Woo, Jung-Hun3; Kim, Younha4; Lee, Taehyoung5; Heo, Gookyoung6; Park, Seung-Myung7; Jung, Donghee7; Park, Jihoon7; Kim, Cheol-Hee1 | |
2020-08-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 240 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; Austria |
英文摘要 | Substantial mitigation of air pollutants emissions has been performed since 2013 around Beijing, and changes in the atmospheric characteristics have been expected over the downstream area of Beijing. In this study, both WRF-Chem simulation and on-site measurements were utilized for the Baengnyeong (island) supersite, one of the representative regional background sites located in the Yellow Sea, the entrance area of the long-range transport process in Korea. The changes in the chemical compositions of inorganic aerosols were examined for spring-time during the Chinese emission mitigation period from 2014 to 2016. The measured ratio of ionic species to PM2.5 at the Baengnyeong supersite showed changes in aerosol inorganic chemical compositions from sulfate in 2014 to nitrate in 2015-2016. The modeling results also showed that nitrate was low in 2014 and significantly increased in 2015 and 2016, and the acidic aerosol condition had also changed toward a more neutralized status in both the simulation and the observations. The WRF-Chem modeling study further indicated that the sulfur was not neutralized in 2014. However, in 2015 and 2016, SO2 was more sufficiently neutralized as sulfur emissions were substantially reduced in China, while at the same time nitrate had begun to increase in such a 'SO2-poor' condition in Beijing area in China, and thus approaching more enhanced neutralization over the Yellow Sea area. The causes of the higher nitrate based on the modeled characteristics of the ammonia-sulfate-nitrate aerosol formation in response to the SO2 emissions reduction in China are also discussed in this paper. |
英文关键词 | Inorganic aerosol Chinese emissions mitigation Yellow Sea Baengnyeong supersite |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000527314900017 |
WOS关键词 | LONG-RANGE TRANSPORT ; PARTICULATE MATTER ; OBSERVABLE INDICATORS ; SECONDARY AEROSOL ; AIR-POLLUTION ; PM2.5 NITRATE ; SICHUAN BASIN ; MICS-ASIA ; PART II ; SEOUL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/289307 |
专题 | 地球科学 |
作者单位 | 1.Pusan Natl Univ, Dept Atmospher Sci, 30 San, Busan 609735, South Korea; 2.Pusan Natl Univ, Inst Environm Studies, 30 San, Busan 609735, South Korea; 3.Konkuk Univ, Dept Adv Technol Fus, Seoul, South Korea; 4.IIASA, Laxenburg, Austria; 5.Hankuk Univ Foreign Studies, Dept Environm Sci, Yongin, South Korea; 6.Minist Environm, Natl Ctr Fine Dust Informat, Cheongju, South Korea; 7.Natl Inst Environm Res, Climate & Air Qual Res Dept, Incheon, South Korea |
推荐引用方式 GB/T 7714 | Jo, Yu-Jin,Lee, Hyo-Jung,Jo, Hyun-Young,et al. Changes in inorganic aerosol compositions over the Yellow Sea area from impact of Chinese emissions mitigation[J]. ATMOSPHERIC RESEARCH,2020,240. |
APA | Jo, Yu-Jin.,Lee, Hyo-Jung.,Jo, Hyun-Young.,Woo, Jung-Hun.,Kim, Younha.,...&Kim, Cheol-Hee.(2020).Changes in inorganic aerosol compositions over the Yellow Sea area from impact of Chinese emissions mitigation.ATMOSPHERIC RESEARCH,240. |
MLA | Jo, Yu-Jin,et al."Changes in inorganic aerosol compositions over the Yellow Sea area from impact of Chinese emissions mitigation".ATMOSPHERIC RESEARCH 240(2020). |
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