Efficient Heterogeneous Formation of Ammonium Nitrate on the Saline Mineral Particle Surface in the Atmosphere of East Asia during Dust Storm Periods

doi:10.1021/acs.est.0c04544

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	Efficient Heterogeneous Formation of Ammonium Nitrate on the Saline Mineral Particle Surface in the Atmosphere of East Asia during Dust Storm Periods
	Wu, Can 1,2; Zhang, Si 1; Wang, Gehui 1,2,5; Lv, Shaojun 1; Li, Dapeng 1; Liu, Lang 2; Li, Jianjun 2; Liu, Shijie 1; Du, Wei 1; Meng, Jingjing 3; Qiao, Liping 4; Zhou, Min 4; Huang, Cheng 4; Wang, Hongli 4
通讯作者	Wang, Gehui(ghwang@geo.ecnu.edu.cn)
	2020-12-15
发表期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
卷号	54 期号:24 页码:15622-15630
摘要	To understand the chemical evolution of dust in the current East Asian atmosphere, the chemistry of PM2.5 and size-resolved aerosols in Shanghai, China, during the 2019 dust storm event was investigated. Our results showed that concentrations of SO42- in the city during the event highly correlated with Ca2+ and Na+ due to the direct emissions of CaSO4 and Na2SO4 from the upwind deserts. In contrast, during the event, NO3- linearly correlated with NH4+ at a molar ratio close to 1:1, and both almost entirely stayed in coarse particles, suggesting they accumulated on the dust surface as NH4NO3. Based on the field observations and laboratory smog chamber simulations, we found that NO2 and O-3 in Shanghai during the dust period reacted to form N2O5, which subsequently hydrolyzed into HNO3 on the surface of saline mineral dusts (e.g., CaSO4 and Na2SO4) and was further neutralized by NH3 as NH4NO3. The relative abundances of NO3- and NH4+ in Shanghai during the dust event were notably higher than those a decade ago, indicating that this heterogeneous formation of NH4NO3 on dust was enhanced by the abundantly coexisting NOx, O-3, and NH3 in the current East Asian atmosphere, which should be considered in future modeling studies.
DOI	10.1021/acs.est.0c04544
关键词[WOS]	INLAND CHINA ; DESERT DUST ; AEROSOL CHEMISTRY ; MIXING STATE ; TRANSPORT ; SULFATE ; EVENTS ; XIAN ; HYGROSCOPICITY ; DEPOSITION
收录类别	SCI ; SCI
语种	英语
资助项目	National Key R&D Plan, Ministry of Science and Technology of China (Mechanism and chemical process characterization of atmospheric particulate matter multi-isotope fractionation)[2017YFC0212703] ; National Natural Science Foundation of China[41773117] ; Institute of EcoChongming ; ECNU Happiness Flower Plan
WOS研究方向	Engineering ; Environmental Sciences & Ecology
项目资助者	National Key R&D Plan, Ministry of Science and Technology of China (Mechanism and chemical process characterization of atmospheric particulate matter multi-isotope fractionation) ; National Natural Science Foundation of China ; Institute of EcoChongming ; ECNU Happiness Flower Plan
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000600100400007
出版者	AMER CHEMICAL SOC
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15797
专题	粉尘与环境研究室
通讯作者	Wang, Gehui
作者单位	1.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai 210062, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Shandong, Peoples R China 4.Shanghai Acad Environm Sci, State Environm Protect Key Lab Format & Prevent U, Shanghai 200233, Peoples R China 5.Inst Ecochongming, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Wu, Can,Zhang, Si,Wang, Gehui,et al. Efficient Heterogeneous Formation of Ammonium Nitrate on the Saline Mineral Particle Surface in the Atmosphere of East Asia during Dust Storm Periods[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(24):15622-15630.
APA	Wu, Can.,Zhang, Si.,Wang, Gehui.,Lv, Shaojun.,Li, Dapeng.,...&Wang, Hongli.(2020).Efficient Heterogeneous Formation of Ammonium Nitrate on the Saline Mineral Particle Surface in the Atmosphere of East Asia during Dust Storm Periods.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(24),15622-15630.
MLA	Wu, Can,et al."Efficient Heterogeneous Formation of Ammonium Nitrate on the Saline Mineral Particle Surface in the Atmosphere of East Asia during Dust Storm Periods".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.24(2020):15622-15630.