Important contribution of N2O5 hydrolysis to the daytime nitrate in Xi' an, China during haze periods: Isotopic analysis and WRF-Chem model simulation

doi:10.1016/j.envpol.2021.117712

IEECAS OpenIR > 粉尘与环境研究室

	Important contribution of N2O5 hydrolysis to the daytime nitrate in Xi' an, China during haze periods: Isotopic analysis and WRF-Chem model simulation
	Wu, Can 1; Liu, Lang 2,3; Wang, Gehui 1,4; Zhang, Si 1; Li, Guohui 2; Lv, Shaojun 1; Li, Jianjun 2; Wang, Fanglin 1; Meng, Jingjing 5; Zeng, Ying 1
通讯作者	Wang, Gehui(ghwang@geo.ecnu.edu.cn)
	2021-11-01
发表期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
卷号	288 页码:8
摘要	Nitrate, as one of the major components of tropospheric aerosols, plays a crucial role in winter haze formation. While, the formation mechanism of the high production of nitrate in Chinese megacities is still not fully understood. To quantify the contributions of major formation pathways to nitrate, airborne particles in Xi'an, inland China during the winter of 2017 were measured and analyzed for the water-soluble ions and stable nitrogen/oxygen isotope compositions of nitrate in PM2.5, followed by a WRF-Chem model simulation. The oxygen isotopic results indicated that N2O5 hydrolysis was an important formation pathway for the daytime nitrate in the haze episodes. The model simulation further revealed that N2O5 hydrolysis contribution increased from 8.2% to 20.5% of the total nitrate over 14:00-16:00 p.m., clearly showing that N2O5 formation followed by a heterogeneous hydrolysis to nitrate can effectively proceed in daytime under the abundantly co-existing O-3, NO2 and NH3 conditions.
关键词	Nitrate NO2 andO(3) Aerosol liquid water content (ALWC) PM2.5 Ammonia
DOI	10.1016/j.envpol.2021.117712
关键词[WOS]	PARTICLE LIQUID WATER ; NITROGEN DEPOSITION ; GLOBAL-MODEL ; INLAND CHINA ; AIR-QUALITY ; OXYGEN ; NOX ; POLLUTION ; PM2.5 ; ENHANCEMENT
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] ; National Natural Science Foundation of China[41325014] ; Institute of Eco-Chongming ; ECNU Happiness Flower
WOS研究方向	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 Eco-Chongming ; ECNU Happiness Flower
WOS类目	Environmental Sciences
WOS记录号	WOS:000696782200003
出版者	ELSEVIER SCI LTD
引用统计	被引频次：14[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/361006/17005
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.Northwestern Polytech Univ, Sch Publ Policy & Adm, Xian 710061, Peoples R China 4.Inst Ecochongming, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China 5.Liaocheng Univ, Sch Environm & Planning, Liaocheng 252000, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wu, Can,Liu, Lang,Wang, Gehui,et al. Important contribution of N2O5 hydrolysis to the daytime nitrate in Xi' an, China during haze periods: Isotopic analysis and WRF-Chem model simulation[J]. ENVIRONMENTAL POLLUTION,2021,288:8.
APA	Wu, Can.,Liu, Lang.,Wang, Gehui.,Zhang, Si.,Li, Guohui.,...&Zeng, Ying.(2021).Important contribution of N2O5 hydrolysis to the daytime nitrate in Xi' an, China during haze periods: Isotopic analysis and WRF-Chem model simulation.ENVIRONMENTAL POLLUTION,288,8.
MLA	Wu, Can,et al."Important contribution of N2O5 hydrolysis to the daytime nitrate in Xi' an, China during haze periods: Isotopic analysis and WRF-Chem model simulation".ENVIRONMENTAL POLLUTION 288(2021):8.