DOI: 10.1016/j.atmosenv.2020.117298
论文题名: Atmospheric reactive nitrogen concentration and deposition trends from 2011 to 2018 at an urban site in north China
作者: Luo X. ; Liu X. ; Pan Y. ; Wen Z. ; Xu W. ; Zhang L. ; Kou C. ; Lv J. ; Goulding K.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 224 语种: 英语
英文关键词: Air quality
; Ammonia
; Deposition rates
; Ecosystems
; Emission control
; Health
; Nitrogen
; Nitrogen oxides
; Particulate emissions
; Quality control
; Emission control measures
; Global environment
; Inferential methods
; Long term observations
; Long-term measurements
; N deposition
; Reactive nitrogen
; Yearly variations
; Urban growth
; ammonia
; nitrogen
; air quality
; ammonia
; ammonium compound
; atmospheric deposition
; concentration (composition)
; emission control
; nitrogen
; precipitation (chemistry)
; seasonal variation
; trend analysis
; urban site
; air monitoring
; air pollution control
; air quality
; Article
; atmospheric deposition
; China
; dry deposition
; ecosystem
; ecosystem health
; nitrogen concentration
; pollution monitoring
; precipitation
; priority journal
; seasonal variation
; spring
; summer
; trend study
; urban area
; China
; Henan
; North China Plain
; Zhengzhou
学科: Ammonia
; Atmospheric reactive nitrogen
; Long-term observation
; N deposition
; Yearly variation
中文摘要: Atmospheric reactive nitrogen (Nr) emissions and deposition have caused much damage to the global environment and also impacted human health. Determining long-term trends in atmospheric Nr concentrations and deposition is important for evaluating air quality and ecosystem effects and formulating control measures to reduce negative impacts. We measured monthly concentrations of NH3, pNH4+, HNO3, pNO3-, and NO2 and calculated their dry deposition rates using an inferential method from 2011 to 2018 at an urban site in Zhengzhou in the North China Plain. Inorganic N (NH4+ and NO3−) concentrations in precipitation and wet/bulk N deposition were also quantified in 2011, 2016, 2017 and 2018. The results showed high concentrations of atmospheric Nr species, with considerable variation in some species over the monitoring period. Annual mean NH3 concentrations significantly increased from 2011 to 2018 (p < 0.001) with that in 2018 being twice that in 2011. However, pNO3- and pNH4+ concentrations decreased after 2013. The annual mean NO2 concentration in 2018 had decreased by 33.4% compared to the peak in 2011. Highest NH3 concentrations were measured in spring or summer, and lowest concentrations in winter. pNH4+ and pNO3- concentrations peaked mainly in winter. Total annual dry N deposition ranged from 21.9 to 41.2 kg N ha−1. Bulk NH4+ and NO3− deposition was lower in 2016–2018 than in 2011. However, atmospheric Nr concentrations and N deposition remained high in this urban ecosystem. NH3 emissions urgently need control measures, and Nr impacts on the surrounding ecosystems and human health should be considered. Continuous long-term measurements of atmospheric Nr concentrations and deposition at a regional scale are necessary to help formulate emission control measures and protect human and ecosystem health. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160907
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Henan Key Laboratory of Agricultural Ecoenvironment, Zhengzhou, 450002, China; College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, School of Agriculture Green Development, China Agricultural University, Beijing, 100193, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, 100871, China; Sustainable Agricultural Sciences Department, Rothamsted Research, Harpenden, AL5 2JQ, United Kingdom
Recommended Citation:
Luo X.,Liu X.,Pan Y.,et al. Atmospheric reactive nitrogen concentration and deposition trends from 2011 to 2018 at an urban site in north China[J]. Atmospheric Environment,2020-01-01,224