Persistent sulfate formation from London Fog to Chinese haze

CORC > 化学研究所 > 中国科学院化学研究所 > 分子动态与稳态结构实验室

	Persistent sulfate formation from London Fog to Chinese haze
	Wang, Gehui 1,2,3,4,5,25; Zhang, Renyi 3,4,6; Gomez, Mario E.3,4,7; Yang, Lingxiao 3,8; Zamora, Misti Levy 3; Hu, Min 6; Lin, Yun 3; Peng, Jianfei 3,6; Guo, Song 3,6; Meng, Jingjing 1,2,9
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2016-11-29
卷号	113 期号:48 页码:13630-13635
关键词	sulfate aerosol severe haze pollution human health climate
英文摘要	Sulfate aerosols exert profound impacts on human and ecosystem health, weather, and climate, but their formation mechanism remains uncertain. Atmospheric models consistently underpredict sulfate levels under diverse environmental conditions. From atmospheric measurements in two Chinese megacities and complementary laboratory experiments, we show that the aqueous oxidation of SO2 by NO2 is key to efficient sulfate formation but is only feasible under two atmospheric conditions: on fine aerosols with high relative humidity and NH3 neutralization or under cloud conditions. Under polluted environments, this SO2 oxidation process leads to large sulfate production rates and promotes formation of nitrate and organic matter on aqueous particles, exacerbating severe haze development. Effective haze mitigation is achievable by intervening in the sulfate formation process with enforced NH3 and NO2 control measures. In addition to explaining the polluted episodes currently occurring in China and during the 1952 London Fog, this sulfate production mechanism is widespread, and our results suggest a way to tackle this growing problem in China and much of the developing world.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/36523]
专题	化学研究所_分子动态与稳态结构实验室
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Peoples R China 2.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Peoples R China 3.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA 4.Texas A&M Univ, Dept Chem, College Stn, TX 77840 USA 5.East China Normal Univ, Sch Geog Sci, Shanghai 200062, Peoples R China 6.Peking Univ, State Key Joint Lab Environm Simulat & Pollut Con, Coll Environm Sci & Engn, Beijing 100871, Peoples R China 7.Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA 8.Shandong Univ, Sch Environm Sci & Engn, Jinan 250100, Peoples R China 9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 10.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wang, Gehui,Zhang, Renyi,Gomez, Mario E.,et al. Persistent sulfate formation from London Fog to Chinese haze[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2016,113(48):13630-13635.
APA	Wang, Gehui.,Zhang, Renyi.,Gomez, Mario E..,Yang, Lingxiao.,Zamora, Misti Levy.,...&Molina, Mario J..(2016).Persistent sulfate formation from London Fog to Chinese haze.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(48),13630-13635.
MLA	Wang, Gehui,et al."Persistent sulfate formation from London Fog to Chinese haze".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.48(2016):13630-13635.