Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-7933-2018 |
High-resolution modeling of gaseous methylamines over a polluted region in China: source-dependent emissions and implications of spatial variations | |
Mao, Jingbo1,4; Yu, Fangqun1,3; Zhang, Yan1,2,4,5; An, Jingyu6; Wang, Lin1; Zheng, Jun7; Yao, Lei1; Luo, Gan3; Ma, Weichun1; Yu, Qi1; Huang, Cheng6; Li, Li6; Chen, Limin1 | |
2018-06-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:11页码:7933-7950 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Amines have received increasing attention in recent years because of their potential role in new particle formation in the atmosphere and their impact on aerosol chemistry. High concentrations of amines are expected to be limited to the vicinity of source regions due to their short lifetime, highlighting the necessity of having a better understanding of contributions of emissions from different source types. This study presents the first high-resolution model simulation of concentrations of methylamines on a regional scale over the Yangtze River Delta region in East China. The WRF-Chem with nested grids is used in model simulations. In contrast to the very limited existing modeling studies that assumed a fixed ratio (FR) of amines to total ammonia emission, we derive source-dependent ratios (SDR) that distinguish C1-amine (CH3NH2), C2-amines (C2H7N), C3-amines (C3H9N) emissions from five different source types (agriculture, residential, transportation, chemical industry, and other industry). The amines-to-ammonia mass emission ratios, estimated from previous measurements, are 0.026, 0.0015, 0.0011, 0.0011, and 0.0011 for C1-amine; 0.007, 0.0018, 0.0015, 0.01, and 0.0009 for C2-amines; and 0.0004, 0.0005, 0.00043, 0.0006, and 0.0004 for C3-amines for chemical-industrial, other industrial, agricultural, resi-dential, and transportational sources, respectively. The simulated concentrations of C1-, C2-, and C3-amines, based on both FR and SDR, have been compared with field measurements at a suburban site in Nanjing and at an urban site in Shanghai, China. SDR substantially improves the ability of the model in capturing the observed concentrations of methylamines. Concentrations of C1-, C2-, and C3-amines in the surface layer in the Yangtze River Delta region are generally in the range of 2-20, 5-50, and 0.5-4 pptv. Vertically, the concentrations of C1-, C2-, and C3-amines decrease quickly with altitude, dropping by a factor of similar to 10 from the surface to similar to 900 hPa. Results from the present study are critical to evaluating potential roles of amines in nucleation and chemical processes in polluted air. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434347600002 |
WOS关键词 | IONIZATION MASS-SPECTROMETER ; YANGTZE-RIVER DELTA ; SULFURIC ACID-AMINE ; PARTICLE FORMATION ; AEROSOL FORMATION ; NUCLEATION ; ATMOSPHERE ; GROWTH ; DIMETHYLAMINE ; CHEMISTRY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30686 |
专题 | 地球科学 |
作者单位 | 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200438, Peoples R China; 2.SIEC, 3663 Northern Zhongshan Rd, Shanghai 200062, Peoples R China; 3.SUNY Albany, Atmospher Sci Res Ctr, 251 Fuller Rd, Albany, NY 12203 USA; 4.Fudan Univ, Inst Atmospher Sci, Shanghai 200438, Peoples R China; 5.Fudan Univ, Data Inst Carbon Emiss & Environm Pollut, Shanghai 200433, Peoples R China; 6.Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China; 7.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Mao, Jingbo,Yu, Fangqun,Zhang, Yan,et al. High-resolution modeling of gaseous methylamines over a polluted region in China: source-dependent emissions and implications of spatial variations[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(11):7933-7950. |
APA | Mao, Jingbo.,Yu, Fangqun.,Zhang, Yan.,An, Jingyu.,Wang, Lin.,...&Chen, Limin.(2018).High-resolution modeling of gaseous methylamines over a polluted region in China: source-dependent emissions and implications of spatial variations.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(11),7933-7950. |
MLA | Mao, Jingbo,et al."High-resolution modeling of gaseous methylamines over a polluted region in China: source-dependent emissions and implications of spatial variations".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.11(2018):7933-7950. |
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