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DOI10.5194/acp-19-4269-2019
Satellite data reveal a common combustion emission pathway for major cities in China
Tang, Wenfu1; Arellano, Avelino F.1; Gaubert, Benjamin2; Miyazaki, Kazuyuki3; Worden, Helen M.2
2019-04-03
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2019
卷号19期号:7页码:4269-4288
文章类型Article
语种英语
国家USA; Japan
英文摘要

Extensive fossil fuel combustion in rapidly developing cities severely affects air quality and public health. We report observational evidence of decadal changes in the efficiency and cleanness of bulk combustion over large cities in mainland China. In order to estimate the trends in enhancement ratios of CO and SO2 to NO2 (Delta CO/Delta NO2 and Delta SO2/Delta NO2) and infer emergent bulk combustion properties over these cities, we combine air quality retrievals from widely used satellite instruments across 2005-2014. We present results for four Chinese cities (Shenyang, Beijing, Shanghai, and Shenzhen) representing four levels of urban development. Our results show a robust coherent progression of declining to growing Delta CO/Delta NO2 relative to 2005 (-5.4 +/- 0.7 to +8.3 +/- 3.1 % yr(-1)) and slowly declining Delta SO2/Delta NO2 (-6.0 +/- 1.0 to -3.4 +/- 1.0 % yr(-1)) across the four cities. The coherent progression we find is not evident in the trends of emission ratios reported in Representative Concentration Pathway (RCP8.5) inventory. This progression is likely due to a shift towards cleaner combustion from industrial and residential sectors in Shanghai and Shenzhen that is not yet seen in Shenyang and Beijing. This overall trend is presently obfuscated by China's still relatively higher dependence on coal. Such progression is well-correlated with economic development and traces a common emission pathway that resembles evolution of air pollution in more developed cities. Our results highlight the utility of augmenting observing and modeling capabilities by exploiting enhancement ratios in constraining the time variation in emission ratios in current inventories. As cities and/or countries continue to socioeconomically develop, the ability to monitor combustion efficiency and effectiveness of pollution control becomes increasingly important in assessing sustainable control strategies.


领域地球科学
收录类别SCI-E ; SSCI
WOS记录号WOS:000463364000007
WOS关键词FINE PARTICULATE MATTER ; AIR-POLLUTION ; SO2 EMISSIONS ; ECONOMIC-GROWTH ; CO2 EMISSIONS ; NO2 POLLUTION ; MEGACITIES ; QUALITY ; ENERGY ; TECHNOLOGY
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; 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/182276
专题地球科学
作者单位1.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85721 USA;
2.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, Boulder, CO 80301 USA;
3.Japan Agcy Marine Earth Sci & Technol, Yokohama, Kanagawa, Japan
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GB/T 7714
Tang, Wenfu,Arellano, Avelino F.,Gaubert, Benjamin,et al. Satellite data reveal a common combustion emission pathway for major cities in China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(7):4269-4288.
APA Tang, Wenfu,Arellano, Avelino F.,Gaubert, Benjamin,Miyazaki, Kazuyuki,&Worden, Helen M..(2019).Satellite data reveal a common combustion emission pathway for major cities in China.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(7),4269-4288.
MLA Tang, Wenfu,et al."Satellite data reveal a common combustion emission pathway for major cities in China".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.7(2019):4269-4288.
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