Vapor isotopic evidence for the worsening of winter air quality by anthropogenic combustion-derived water

doi:10.1073/pnas.1922840117

	Vapor isotopic evidence for the worsening of winter air quality by anthropogenic combustion-derived water
	Xing, Meng 3,4; Liu, Weiguo 3,4; Li, Xia 2,4; Zhou, Weijian 1,3,4; Wang, Qiyuan 2,3,4; Tian, Jie 2,3,4; Li, Xiaofei 2,3,4; Tie, Xuexi 2,3,4; Li, Guohui 2,3,4; Cao, Junji 2,3,4,7,8
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2020-12-29
卷号	117 期号:52 页码:33005-33010
关键词	water vapor isotopes WRF-Chem simulation air quality winter haze
ISSN号	0027-8424
DOI	10.1073/pnas.1922840117
通讯作者	Cao, Junji(jjcao@ieecas.cn) ; Bao, Huiming(bao@lsu.edu) ; An, Zhisheng(anzs@loess.llqg.ac.cn)
英文摘要	Anthropogenic combustion-derived water (CDW) may accumulate in an airshed due to stagnant air, which may further enhance the formation of secondary aerosols and worsen air quality. Here we collected three-winter-season, hourly resolution, water-vapor stable H and O isotope compositions together with atmospheric physical and chemical data from the city of Xi'an, located in the Guanzhong Basin (GZB) in northwestern China, to elucidate the role of CDW in particulate pollution. Based on our experimentally determined water vapor isotope composition of the CDW for individual and weighted fuels in the basin, we found that CDW constitutes 6.2% of the atmospheric moisture on average and its fraction is positively correlated with [PM2.5] (concentration of particulate matter with an aerodynamic diameter less than 2.5 mu m) as well as relative humidity during the periods of rising [PM2.5]. Our modeling results showed that CDW added additional average 4.6 mu g m(-3) PM2.5 during severely polluted conditions in the GZB, which corresponded to an average 5.1% of local anthropogenic [PM2.5] (average at similar to 91.0 mu g m(-3)). Our result is consistent with the proposed positive feedback between the relative humidity and a moisture sensitive air-pollution condition, alerting to the nontrivial role of CDW when considering change of energy structure such as a massive coal-to-gas switch in household heating in winter.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Research Program for Key Issues in Air Pollution Control (China) Grant[DQGG0105] ; National Atmospheric Research Program (China) Grant[2017YFC0212200] ; Key Projects of Chinese Academy of Sciences Grant[ZDRW-ZS-2017-6] ; State Key Laboratory of Loess and Quaternary Geology Grant[SKLLQGZD1701] ; China scholarship council ; Charles Jones Professorship fund
WOS关键词	MEXICO-CITY ; PARTICULATE MATTER ; DEUTERIUM EXCESS ; GUANZHONG BASIN ; HAZE ; POLLUTION ; EMISSIONS ; CHINA ; PM2.5 ; PHOTOCHEMISTRY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000604551600030
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Research Program for Key Issues in Air Pollution Control (China) Grant ; National Atmospheric Research Program (China) Grant ; Key Projects of Chinese Academy of Sciences Grant ; State Key Laboratory of Loess and Quaternary Geology Grant ; China scholarship council ; Charles Jones Professorship fund
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/15762]
专题	地球环境研究所_加速器质谱中心第四纪科学与全球变化卓越创新中心
通讯作者	Cao, Junji; Bao, Huiming; An, Zhisheng
作者单位	1.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA 6.Nanjing Univ, Int Ctr Isotope Effects Res, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 7.Xi An Jiao Tong Univ, Dept Earth & Environm Sci, Xian 710049, Peoples R China 8.Qingdao Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Xing, Meng,Liu, Weiguo,Li, Xia,et al. Vapor isotopic evidence for the worsening of winter air quality by anthropogenic combustion-derived water[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(52):33005-33010.
APA	Xing, Meng.,Liu, Weiguo.,Li, Xia.,Zhou, Weijian.,Wang, Qiyuan.,...&An, Zhisheng.(2020).Vapor isotopic evidence for the worsening of winter air quality by anthropogenic combustion-derived water.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(52),33005-33010.
MLA	Xing, Meng,et al."Vapor isotopic evidence for the worsening of winter air quality by anthropogenic combustion-derived water".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.52(2020):33005-33010.