IMHE OpenIR  > 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 PM2.5aerosols at three locations with contrasting land use in southwest China
Song Ling1,2; Liu Xuejun3; Skiba Ute4; Zhu Bo1,2; Zhang Xifeng1,2; Liu Meiyu2; Twigg Marsailidh4; Shen Jianlin5; Dore Anthony4; Reis Stefan4; Coyle Mhairi4; Zhang Wen3; Levy Peter4; Fowler David4
2018
Source PublicationEnvironmental Pollution
ISSN0269-7491
EISSN1873-6424
Volume233Pages:1164-1176
SubtypeArticle
Contribution Rank1
AbstractThe 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 (NH3and 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−1yr−1at 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 μg N m−3at 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 NO2concentrations were lower in warmer compared to the colder months, but seasonal differences were insignificant. Daily PM2.5concentrations ranged from 7.7 to 236.0, 5.0–210.4 and 4.2–128.4 μg m−3at 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. Reduced nitrogen compounds dominate bulk and dry nitrogen deposition in southwest China and contribute considerably to PM2.5aerosol formation. © 2017 Elsevier Ltd
KeywordAerosols Agriculture Air quality Atmospheric composition Deposition rates Economics Land use Nitrogen oxides
DOI10.1016/j.envpol.2017.10.002
Indexed ByEI
Language英语
EI Accession NumberAccession number:20174204280672
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26620
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorZhu Bo
Affiliation1.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Chinese Academy of Sciences, Chengdu;Sichuan;610041, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu;Sichuan;610041, China;
3.College of Resources and Environmental Sciences, China Agricultural University, Beijing;100193, China;
4.Centre for Ecology and Hydrology, Bush Estate, Penicuik;Midlothian;EH26 0QB, United Kingdom;
5.Key Laboratory of Agro-Ecological Processes in Subtropical Regions, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha;Hunan;410125, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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 PM2.5aerosols 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 PM2.5aerosols 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 PM2.5aerosols at three locations with contrasting land use in southwest China".Environmental Pollution 233(2018):1164-1176.
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