兰州大学机构库 >大气科学学院
Persistent sulfate formation from London Fog to Chinese haze
2016-11-29
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume113Issue:2-17Pages:13630-13635
AbstractSulfate 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.
Keywordsulfate aerosol severe haze pollution human health climate
Subject AreaScience & Technology - Other Topics
PublisherNATL ACAD SCIENCES
DOI10.1073/pnas.1616540113
Publication PlaceWASHINGTON
Indexed BySCIE ; PubMed
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 美国国家航空航天局项目
Project NumberNational Natural Science Foundation of China [21190052] ; Strategic Priority Research Program of the CAS [41325014, XDA05100103, XDB05020401] ; Robert A. Welch Foundation [A-1417] ; Ministry of Science and Technology of China [2013CB955800] ; collaborative research program by Texas AM University ; National Basic Research Program, China Ministry of Science and Technology [2013CB228503] ; China Ministry of Environmental Protection's Special Funds for Scientific Research on PublicWelfare [20130916] ; National Science Foundation Graduate Research Fellowship Program ; NASA Earth and Space Science Fellowship Program
WOS IDWOS:000388835700047
Funding OrganizationNSFC ; MOST ; NASA
SubtypeArticle
PMID 27849598
IRIDWOS:000388835700047
Department
[Wang, Gehui;
Meng, Jingjing;
Li, Jianjun;
Cheng, Chunlei;
Hu, Tafeng;
Ren, Yanqin;
Cao, Junji;
An, Zhisheng;
Zhou, Weijian;
Li, Guohui...更多
Citation statistics
Cited Times:735[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/189543
Collection大气科学学院
Corresponding AuthorZhang, RY (reprint author), Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA.; Zhang, RY (reprint author), Texas A&M Univ, Dept Chem, College Stn, TX 77840 USA.; Zhang, RY (reprint author), Peking Univ, State Key Joint Lab Environm Simulat & Pollut Con, Coll Environm Sci & Engn, Beijing 100871, Peoples R China.; Molina, MJ (reprint author), Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA.
Recommended Citation
GB/T 7714
Wang, GH,Zhang, RY,Gomez, ME,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(2-17):13630-13635.
APA Wang, GH.,Zhang, RY.,Gomez, ME.,Yang, LX.,Zamora, ML.,...&Molina, MJ .(2016).Persistent sulfate formation from London Fog to Chinese haze.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(2-17),13630-13635.
MLA Wang, GH,et al."Persistent sulfate formation from London Fog to Chinese haze".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.2-17(2016):13630-13635.
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