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DOI | 10.1038/s41561-019-0485-5 |
Efficient control of atmospheric sulfate production based on three formation regimes | |
Xue, Jian1; Yu, Xin1; Yuan, Zibing2; Griffith, Stephen M.3; Lau, Alexis K. H.1,4; Seinfeld, John H.5; Yu, Jian Zhen1,3 | |
2019-12-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:12页码:977-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The formation of sulfate (SO42-) in the atmosphere is linked chemically to its direct precursor, sulfur dioxide (SO2), through several key oxidation paths for which nitrogen oxides or NOx (NO and NO2) play essential roles. Here we present a coherent description of the dependence of SO42- formation on SO2 and NOx under haze-fog conditions, in which fog events are accompanied by high aerosol loadings and fog-water pH in the range of 4.7-6.9. Three SO42- formation regimes emerge as defined by the role played by NOx. In the low-NOx regime, NOx act as catalyst for HOx, which is a major oxidant for SO2, whereas in the high-NOx regime, NO2 is a sink for HOx. Moreover, at highly elevated NOx levels, a so-called NO2-oxidant regime exists in which aqueous NO2 serves as the dominant oxidant of SO2. This regime also exists under clean fog conditions but is less prominent. Sensitivity calculations using an emission-driven box model show that the reduction of SO42- is comparably sensitive to the reduction of SO2 and NOx emissions in the NO2-oxidant regime, suggesting a co-reduction strategy. Formation of SO42- is relatively insensitive to NOx reduction in the low-NOx regime, whereas reduction of NOx actually leads to increased SO42- production in the intermediate high-NOx regime. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499653700006 |
WOS关键词 | YANGTZE-RIVER DELTA ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; NITROGEN-DIOXIDE ; HAZE EPISODES ; FOG WATER ; HIGH-NOX ; CHINA ; PM2.5 ; CHEMISTRY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/223785 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Kowloon, Hong Kong, Peoples R China; 2.South China Univ Technol, Sch Environm & Energy, Guangzhou, Guangdong, Peoples R China; 3.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China; 4.Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China; 5.CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Xue, Jian,Yu, Xin,Yuan, Zibing,et al. Efficient control of atmospheric sulfate production based on three formation regimes[J]. NATURE GEOSCIENCE,2019,12(12):977-+. |
APA | Xue, Jian.,Yu, Xin.,Yuan, Zibing.,Griffith, Stephen M..,Lau, Alexis K. H..,...&Yu, Jian Zhen.(2019).Efficient control of atmospheric sulfate production based on three formation regimes.NATURE GEOSCIENCE,12(12),977-+. |
MLA | Xue, Jian,et al."Efficient control of atmospheric sulfate production based on three formation regimes".NATURE GEOSCIENCE 12.12(2019):977-+. |
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