Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China

doi:10.1016/j.envpol.2017.10.002

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China
	Song, Ling1,2 ; Liu, Xuejun 3; Skiba, Ute 4; Zhu, Bo1,2 ; Zhang, Xifeng1,2 ; Liu, Meiyu2 ; Twigg, Marsailidh 4; Shen, Jianlin 5; Dore, Anthony 4; Reis, Stefan 4
刊名	ENVIRONMENTAL POLLUTION
	2018-02-01
卷号	233 页码:1164-1176
关键词	Reduced nitrogen Oxidized nitrogen Seasonal pattern Pollution source Land use type
ISSN号	0269-7491
DOI	10.1016/j.envpol.2017.10.002
英文摘要	The fast economic development of southwest China has resulted in significant increases in the concentrations of reactive nitrogen (Nr) in the atmosphere. In this study, an urban (Chengdu, CD), suburban (Shifang, SF) and agriculture (Yanting, YT) - dominated location in the Sichuan Province, southwest China, were selected to investigate the atmospheric composition of Nr, their concentrations and deposition rates. We measured Nr concentrations in precipitation (NH4+, NO3- and organic N (DON)), the gas phase (NH3 and NO2), and the aerosol particles (PM2.5), and calculated their fluxes over a two year period (2014-2016). Total annual N deposition rates were 49.2, 44.7 and 19.8 kg N ha(-1) yr(-1) at CD, SF and YT, respectively. Ammonia concentrations were larger at the urban and suburban sites than the agricultural site (12.2, 14.9, and 4.9 mu g N m(-3) at CD, SF and YT, respectively). This is consistent with the multitude of larger sources of NH3, including city garbage, livestock and traffic, in the urban and suburban areas. Monthly NO2 concentrations were lower in warmer compared to the colder months, but seasonal differences were insignificant. Daily PM2.5 concentrations ranged from 7.7 to 236.0, 5.0-210.4 and 4.2 -128.4 mu g m(-3) at CD, SF and YT, respectively, and showed significant correlations with fine particulate NH4+ and NO3- concentrations. Ratios of reduced to oxidized N were in the range of 1.6-2.7. This implies that the control of reduced Nr especially in urban environments is needed to improve local air quality. (C) 2017 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000424177000124
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/20648]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室综合测试与模拟中心
通讯作者	Zhu, Bo
作者单位	1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 3.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 4.Ctr Ecol & Hydrol, Bush Estate, Penicuik E1126 0QB, Midlothian, Scotland 5.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Song, Ling,Liu, Xuejun,Skiba, Ute,et al. Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China[J]. ENVIRONMENTAL POLLUTION,2018,233:1164-1176.
APA	Song, Ling.,Liu, Xuejun.,Skiba, Ute.,Zhu, Bo.,Zhang, Xifeng.,...&Fowler, David.(2018).Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China.ENVIRONMENTAL POLLUTION,233,1164-1176.
MLA	Song, Ling,et al."Ambient concentrations and deposition rates of selected reactive nitrogen species and their contribution to PM2.5 aerosols at three locations with contrasting land use in southwest China".ENVIRONMENTAL POLLUTION 233(2018):1164-1176.