Vital contribution of residential emissions to atmospheric fine particles (PM2.5) during the severe wintertime pollution episodes in Western China
文献类型：期刊论文
| 作者 | Yang, Junhua1; Kang, Shichang1; Ji, Zhenming2; Yang, Sixiao2; Li, Chaoliu3; Tripathee, Lekhendra1 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 245页码:519-530 |
| ISSN号 | 0269-7491 |
| 关键词 | Severe pollution Residential emissions Unfavorable weather PM2.5 Control strategies |
| DOI | 10.1016/j.envpol.2018.11.027 |
| 通讯作者 | Kang, Shichang(shichang.kang@lzb.ac.cn) ; Ji, Zhenming(jizhm3@mail.sysu.edu.cn) |
| 英文摘要 | To mitigate severe wintertime pollution events in Western China, identifying the source of atmospheric fine particles with an aerodynamic diameter of <= 2.5 mu m (PM2.5) is a crucial step. In this study, we first analyzed the meteorological and emission factors that caused a considerable increase in the PM2.5 concentration in December 2016. This severe pollution episode was found to be related with unfavorable meteorological conditions and increased residential emissions. The WRF-Chem simulations were used to calculate the residential contribution to PM2.5 through a hybrid source apportionment method. From the validation that used grid data and in situ observations in terms of meteorological elements, PM2.5 and its compounds, the simulated results indicated that the residential sector was the largest single contributor to the PM2.5 concentration (60.2%), because of its predominant contributions to black carbon (BC, 62.1%) and primary organic aerosol (POA, 86.5%), with these two primary components accounting for 70.7% of the PM2.5 mass. Compared with the remote background (RB) region covering the central part of the Tibetan Plateau, the residential sector contributed 11.3% more to PM2.5 in the highly populated mega-city (HM) region, including the Sichuan and Guanzhong Basins, due to greater contribution to the concentrations of primary PM2.5 components. As the main emission source of sulfur dioxide (SO2), nitrogen oxides (NOx), and secondary organic aerosol (SOA), the industrial sector was the second largest contributor to the PM2.5 concentration in the HM region. However, in the RB region, the dominating emissions of NOx, SOA and BC were from the transport sector; thus, it was the next largest contributor to total PM2.5. An evaluation of the emission control experiment suggested that mitigation strategies that reduce emissions from residential sources can effectively reduce the PM2.5 concentration during heavy pollution periods. (C) 2018 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | AIR-POLLUTION ; SOURCE APPORTIONMENT ; TIBETAN PLATEAU ; TRANSPORT PATHWAYS ; POTENTIAL SOURCES ; GUANZHONG BASIN ; BLACK CARBON ; AEROSOLS ; MODEL ; INVENTORY |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000457511900055 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558167 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Kang, Shichang; Ji, Zhenming |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 73000, Gansu, Peoples R China 2.Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou 510275, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Junhua,Kang, Shichang,Ji, Zhenming,et al. Vital contribution of residential emissions to atmospheric fine particles (PM2.5) during the severe wintertime pollution episodes in Western China[J]. ENVIRONMENTAL POLLUTION,2019,245:519-530. |
| APA | Yang, Junhua,Kang, Shichang,Ji, Zhenming,Yang, Sixiao,Li, Chaoliu,&Tripathee, Lekhendra.(2019).Vital contribution of residential emissions to atmospheric fine particles (PM2.5) during the severe wintertime pollution episodes in Western China.ENVIRONMENTAL POLLUTION,245,519-530. |
| MLA | Yang, Junhua,et al."Vital contribution of residential emissions to atmospheric fine particles (PM2.5) during the severe wintertime pollution episodes in Western China".ENVIRONMENTAL POLLUTION 245(2019):519-530. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。