PM2.5 from the Guanzhong Plain: Chemical composition andimplications for emission reductions | |
Niu,XY(Niu,Xinyi)[1,2]; Cao,JJ(Cao,Junji)[2,3,4]; Shen,ZX(Shen,Zhenxing)[5]; Ho,SSH(Ho,Steven Sai Hang)[2,6]; Tie,XX(Tie,Xuexi)[2,3 7]; Zhao,SY(Zhao,Shuyu)[2,3]; Xu,HM(Xu,Hongmei)[5,2]; Zhang,T(Zhang,Ting)[2,3]; Huang,RJ(Huang,Rujin)[2,3] | |
2016-10 | |
发表期刊 | Atmospheric Environment |
卷号 | 147期号:2016页码:458-469 |
文章类型 | 期刊论文 |
摘要 | Atmospheric particulate matter (PM) affects important environmental issues including air quality, regional and global climates, and human health. A one-year sampling campaign for PM2.5 was conducted at six locations in Guanzhong Plain, including the cities of Xi'an, Weinan and Baoji, from March 2012 to March 2013. The 24-h average PM2.5 mass concentration was 134.7 μg m−3, that substantially exceeds the National Ambient Air Quality Standard level of 35 μg m−3. The highest loadings of both organic and elemental carbon (OC and EC) occurred in winter: EC co-varied with OC but showed less variability, presumably due to more stable emissions. The greatest contributions of secondary inorganic ions (SO42−, NO3− and NH4+) to the total quantified ions also were seen in winter, presumably due to gaseous precursors from coal combustion and biomass burning. Two high PM episodes occurred, one in the autumn and the other in winter. During the autumn episode, regional pollution from biomass burning raised the concentrations of secondary ions while coal combustion was a strong influence during the winter episode. Modeling simulations suggest that the control measures on both primary emissions and secondary aerosol precursors including SO2, NOx, and NH3 are needed to reduce the PM levels of the region. |
DOI | 10.1016/j.atmosenv.2016.10.029 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/5932 |
专题 | 粉尘与环境研究室 |
作者单位 | 1.School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; 2.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; 3.State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; 4.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, 710049, China; 5.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; 6.Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, 89512, United States; 7.National Center for Atmospheric Research, Boulder, CO, USA |
推荐引用方式 GB/T 7714 | Niu,XY,Cao,JJ,Shen,ZX,et al. PM2.5 from the Guanzhong Plain: Chemical composition andimplications for emission reductions[J]. Atmospheric Environment,2016,147(2016):458-469. |
APA | Niu,XY.,Cao,JJ.,Shen,ZX.,Ho,SSH.,Tie,XX.,...&Huang,RJ.(2016).PM2.5 from the Guanzhong Plain: Chemical composition andimplications for emission reductions.Atmospheric Environment,147(2016),458-469. |
MLA | Niu,XY,et al."PM2.5 from the Guanzhong Plain: Chemical composition andimplications for emission reductions".Atmospheric Environment 147.2016(2016):458-469. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
PM2.5 from the Guanz(3212KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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