| Impact of crop field burning and mountains on heavy haze in the North China Plain: a case study | |
| Long, Xin1,2; Tie, Xuexi1,3,4; Cao, Junji1,5; Huang, Rujin1,6; Feng, Tian1; Li, Nan1,7; Zhao, Suyu1; Tian, Jie1; Li, Guohui1; Zhang, Qiang8 | |
| 2016-08-02 | |
| 发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 卷号 | 16期号:15页码:9675-9691 |
| 文章类型 | Article |
| 摘要 | With the provincial statistical data and crop field burning (CFB) activities captured by Moderate Resolution Imaging Spectroradiometer (MODIS), we extracted a detailed CFB emission inventory in the North China Plain (NCP). The WRF-CHEM model was applied to investigate the impact of CFB on air pollution during the period from 6 to 12 October 2014, corresponding to a heavy haze incident with high concentrations of PM2.5 (particulate matter with aerodynamic diameter less than 2.5 mu m). The WRF-CHEM model generally performed well in simulating the surface species concentrations of PM2.5, O-3 and NO2 compared to the observations; in addition, it reasonably reproduced the observed temporal variations of wind speed, wind direction and planetary boundary layer height (PBLH). It was found that the CFB that occurred in southern NCP (SNCP) had a significant effect on PM2.5 concentrations locally, causing a maximum of 34% PM2.5 increase. Under continuous southerly wind conditions, the CFB pollution plume went through a long-range transport to northern NCP (NNCP; with several mega cities, including Beijing, the capital city of China), where few CFBs occurred, resulting in a maximum of 32% PM2.5 increase. As a result, the heavy haze in Beijing was enhanced by the CFB, which occurred in SNCP. Mountains also play significant roles in enhancing the PM2.5 pollution in NNCP through the blocking effect. The mountains blocked and redirected the airflows, causing the pollutant accumulations along the foothills of mountains. This study suggests that the prohibition of CFB should be strict not only in or around Beijing, but also on the ulterior crop growth areas of SNCP. PM2.5 emissions in SNCP should be significantly limited in order to reduce the occurrences of heavy haze events in the NNCP region. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.5194/acp-16-9675-2016 |
| 关键词[WOS] | BOUNDARY-LAYER STRUCTURE ; ACID DEPOSITION MODEL ; YANGTZE-RIVER DELTA ; AIR-QUALITY ; MEXICO-CITY ; SOURCE APPORTIONMENT ; SOUTHERN HEBEI ; TRACE GASES ; CMAQ MODEL ; WRF-CHEM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000382825800006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5687 |
| 专题 | 粉尘与环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China 4.Natl Ctr Atmospher Res, Boulder, CO 80303 USA 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 6.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 7.Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan 8.Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, Xin,Tie, Xuexi,Cao, Junji,et al. Impact of crop field burning and mountains on heavy haze in the North China Plain: a case study[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2016,16(15):9675-9691. |
| APA | Long, Xin.,Tie, Xuexi.,Cao, Junji.,Huang, Rujin.,Feng, Tian.,...&Zhang, Qiang.(2016).Impact of crop field burning and mountains on heavy haze in the North China Plain: a case study.ATMOSPHERIC CHEMISTRY AND PHYSICS,16(15),9675-9691. |
| MLA | Long, Xin,et al."Impact of crop field burning and mountains on heavy haze in the North China Plain: a case study".ATMOSPHERIC CHEMISTRY AND PHYSICS 16.15(2016):9675-9691. |
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| Impact of crop field（10850KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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