DOI: 10.1016/j.atmosenv.2015.03.014
Scopus记录号: 2-s2.0-84924763520
论文题名: Modeling inorganic nitrogen deposition in Guangdong province, China
作者: Huang Z ; , Wang S ; , Zheng J ; , Yuan Z ; , Ye S ; , Kang D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109 起始页码: 147
结束页码: 160
语种: 英语
英文关键词: CMAQ
; Emission inventory
; Guangdong province
; Nitrogen deposition modeling
Scopus关键词: Nitrogen oxides
; Particles (particulate matter)
; Spatial distribution
; Sulfur dioxide
; Atmospheric nitrogen deposition
; Chemical compositions
; CMAQ
; Emission inventories
; Guangdong Province
; Long range transport
; Nitrogen deposition
; Numerical modeling approach
; Nitrogen
; nitrogen
; rain
; acid deposition
; anthropogenic effect
; atmospheric modeling
; chemical composition
; deposition
; emission inventory
; inorganic nitrogen
; nitrogen dioxide
; numerical model
; performance assessment
; satellite data
; spatial distribution
; wet deposition
; aerosol
; air pollutant
; Article
; chemical composition
; China
; dry deposition
; nitrogen deposition
; priority journal
; wet deposition
; China
; Guangdong
; Maoming
; Zhujiang Delta
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Atmospheric nitrogen deposition is an essential component of acid deposition and serves as one of main sources of nitrogen of the ecosystem. Along with rapidly developed economy, it is expected that the nitrogen deposition in Guangdong province is considerably large, due to substantial anthropogenic reactive nitrogen lost to the Pearl River Delta (PRD) region, one of the most developed region in China. However, characterization of chemical compositions of inorganic nitrogen (IN) deposition and quantification of nitrogen deposition fluxes in time and space in Guangdong province were seldom conducted, especially using a numerical modeling approach. In this study, we established a WRF/SMOKE-PRD/CMAQ model system and expanded 2006-based PRD regional emission inventories to Guangdong provincial ones, including SO2 , NOx, VOC, PM10 , PM2.5 , and NH3 emissions for modeling nitrogen deposition in Guangdong province. Observations, including meteorological observed data, rainfall data, ground-level criteria pollutant measurements, satellite-derived data, and nitrogen deposition fluxes from field measurements were employed in the evaluation of model performance. Results showed that annual nitrogen deposition fluxes in the PRD region and Guangdong province were 31.01kgNhm-1a-1 and 26.03kgNhm-1a-1, dominated by NHx (including NH3 and NH4+), with a percentage of 63% and 71% of the total deposition flux of IN, respectively. The ratio of dry deposition to wet deposition was approximately 2:1 in the PRD region and about 3:2 in the whole Guangdong province. IN deposition was mainly distributed in the PRD region, Chaozhou, and Maoming, which was similar to the spatial distributions of NOx and NH3 emissions. The spatial distributions of chemical compositions of IN deposition implied that NH3 -N and NOx-N tended to deposit in places close to emission sources, while spatial distributions of aerosol NH4+-N and NO3--N usually exhibited broader deposition areas, along with long-range transport of fine particles. Distinct temporal trends were found in IN components, especially for wet depositions, with peak values in August. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81808
Appears in Collections: 气候变化事实与影响
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作者单位: School of Environmental Science and Engineering, South China University of Technology, University Town, Guangzhou, China; Atmospheric Research Center, Fok Ying Tung Graduate School, Hong Kong University of Science and Technology, Nansha IT Park, Guangzhou, China; Computer Science Corporation, Research Triangle Park, 79 T.W. Alexander DriveNC, United States
Recommended Citation:
Huang Z,, Wang S,, Zheng J,et al. Modeling inorganic nitrogen deposition in Guangdong province, China[J]. Atmospheric Environment,2015-01-01,109