气候变化领域集成服务门户(CCPortal): Precipitation chemistry and atmospheric nitrogen deposition at a rural site in Beijing, China

CCPortal

DOI	10.1016/j.atmosenv.2019.117253
	Precipitation chemistry and atmospheric nitrogen deposition at a rural site in Beijing, China
	Xu W.; Wen Z.; Shang B.; Dore A.J.; Tang A.; Xia X.; Zheng A.; Han M.; Zhang L.; Zhao Y.; Zhang G.; Feng Z.; Liu X.; Zhang F.
发表日期	2020
ISSN	13522310
英文摘要	Precipitation chemistry and atmospheric nitrogen (N) deposition are of great concern worldwide due to their close relationships with air quality and impacts on ecosystems. However, evaluation of the chemical composition of precipitation and N deposition flux in rural areas of Beijing has received little attention to date. This paper presents the chemical constituents, possible sources and wet deposition fluxes of water-soluble ions (NH4 +, NO3 −, SO4 2−, Cl−, Na+, K+, Ca2+, Mg2+) in precipitation samples collected during 2017–2018 at a rural site located at northwest of Beijing city; meanwhile, dry deposition of reactive N species (gaseous ammonia, nitrogen dioxide, nitric acid, and particulate (p) NH4 + and NO3 −) were also quantified. During this 2-year period, the volume-weighted mean (VWM) pH of precipitation was 6.73, and all samples had pH values above 6.0. The VWM electric conductivity of precipitation and the mean sum of all measured ions was 43.8 μS cm−1 and 591.9 μeq L−1, respectively, indicating a significant impact of atmospheric pollution. Ca2+ and NH4 + were the dominant neutralizing species for precipitation acidity. Positive matrix factorization analysis further confirmed five sources for water-soluble ions, including sea salt aging, secondary formation, agriculture, crust, and biomass burning. The annual mean wet N deposition was 4.6, 3.4 and 8.0 kg N ha−1 yr−1 for NH4 +, NO3 − and total inorganic N, respectively. The total dry N deposition was dominated by gaseous ammonia (11.5 kg N ha−1 yr−1). The total N deposition (wet plus dry) was 27.7 kg N ha−1 yr−1, where dry deposition contributed to 75% and wet deposition 25% of the total. The simulations from the GEOS-Chem model indicate that agricultural (fertilizer use and livestock) and nonagricultural sources (industry, power plant, and transportation) are both important contributors to total N deposition. These results could be useful in evaluating/developing emission control policies to protect the eco-environment in Beijing. © 2019 Elsevier Ltd
英文关键词	Air pollution; Ammonia; Nitrogen deposition; Rainwater chemistry; Source apportionment
学科领域	Agriculture; Air pollution; Air quality; Ammonia; Emission control; Factorization; Ions; Nitrogen oxides; Rural areas; Atmospheric nitrogen deposition; Atmospheric pollution; Nitrogen deposition; Non-agricultural sources; Positive Matrix Factorization; Precipitation chemistry; Rainwater chemistry; Source apportionment; Atmospheric chemistry
语种	英语
scopus关键词	Agriculture; Air pollution; Air quality; Ammonia; Emission control; Factorization; Ions; Nitrogen oxides; Rural areas; Atmospheric nitrogen deposition; Atmospheric pollution; Nitrogen deposition; Non-agricultural sources; Positive Matrix Factorization; Precipitation chemistry; Rainwater chemistry; Source apportionment; Atmospheric chemistry
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120866
作者单位	College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions of MOE, China Agricultural University, Beijing, 100193, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing, 100085, China; Centre for Ecology and Hydrology, Edinburgh, Bush Estate, Penicuik, Midlothian EH26 0QB, United Kingdom; Analysis and Testing Center, Beijing Normal University, Beijing, 100875, China; Laboratory for Climate and Ocean-Atmosphere Sciences, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, 100871, China; National Research Center for Environmental Analysis and Measurement, South Yuhui Road 1, Chaoyang District, Beijing, 100029, China; Institute of Ecology, Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information ...
推荐引用方式 GB/T 7714	Xu W.,Wen Z.,Shang B.,et al. Precipitation chemistry and atmospheric nitrogen deposition at a rural site in Beijing, China[J],2020.
APA	Xu W..,Wen Z..,Shang B..,Dore A.J..,Tang A..,...&Zhang F..(2020).Precipitation chemistry and atmospheric nitrogen deposition at a rural site in Beijing, China.Atmospheric Environment.
MLA	Xu W.,et al."Precipitation chemistry and atmospheric nitrogen deposition at a rural site in Beijing, China".Atmospheric Environment (2020).