气候变化领域集成服务门户(CCPortal): Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze

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DOI	10.5194/acp-19-1357-2019
	Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze
	Song S.; Gao M.; Xu W.; Sun Y.; Worsnop D.R.; Jayne J.T.; Zhang Y.; Zhu L.; Li M.; Zhou Z.; Cheng C.; Lv Y.; Wang Y.; Peng W.; Xu X.; Lin N.; Wang Y.; Wang S.; William Munger J.; Jacob D.J.; McElroy M.B.
发表日期	2019
ISSN	16807316
起始页码	1357
结束页码	1371
卷号	19 期号:2
英文摘要	The chemical mechanisms responsible for rapid sulfate production, an important driver of winter haze formation in northern China, remain unclear. Here, we propose a potentially important heterogeneous hydroxymethanesulfonate (HMS) chemical mechanism. Through analyzing field measurements with aerosol mass spectrometry, we show evidence for a possible significant existence in haze aerosols of organosulfur primarily as HMS, misidentified as sulfate in previous observations. We estimate that HMS can account for up to about one-third of the sulfate concentrations unexplained by current air quality models. Heterogeneous production of HMS by SO2 and formaldehyde is favored under northern China winter haze conditions due to high aerosol water content, moderately acidic pH values, high gaseous precursor levels, and low temperature. These analyses identify an unappreciated importance of formaldehyde in secondary aerosol formation and call for more research on sources and on the chemistry of formaldehyde in northern China winter. © Author(s) 2019.
语种	英语
scopus关键词	aerosol composition; air quality; atmospheric chemistry; concentration (composition); haze; heterogeneous medium; hydroxyl radical; seasonal variation; China
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144674
作者单位	School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; State Key Laboratory of Atmospheric Boundary Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Aerodyne Research, Inc., Billerica, MA 01821, United States; Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou, 510632, China; Guangdong Prov. Engineering Research Center for Online Source Apportionment System of Air Pollution, Guangzhou, 510632, China; China National Environmental Monitoring Center, Beijing, 100012, China; State Key Laboratory of Severe Weather, Key Laboratory for Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing, 100081, ...
推荐引用方式 GB/T 7714	Song S.,Gao M.,Xu W.,et al. Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze[J],2019,19(2).
APA	Song S..,Gao M..,Xu W..,Sun Y..,Worsnop D.R..,...&McElroy M.B..(2019).Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze.Atmospheric Chemistry and Physics,19(2).
MLA	Song S.,et al."Possible heterogeneous chemistry of hydroxymethanesulfonate (HMS) in northern China winter haze".Atmospheric Chemistry and Physics 19.2(2019).