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题名:
Radiocarbon-derived source apportionment of fine carbonaceous aerosols before, during, and after the 2014 Asia-Pacific Economic Cooperation (APEC) summit in Beijing, China
作者: Liu, JW; Mo, YZ; Li, J; Liu, D; Shen, CD; Ding, P; Jiang, HY; Cheng, ZN; Zhang, XY; Tian, CG; Chen, YingJun(陈颖军); Zhang, G
刊名: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN号: 2169-897X
出版日期: 2016-04-27
卷号: 121, 期号:8, 页码:4177-4187
DOI: 10.1002/2016JD024865
产权排序: [Liu, Junwen; Mo, Yangzhi; Li, Jun; Liu, Di; Jiang, Haoyu; Cheng, Zhineng; Zhang, Xiangyun; Zhang, Gan] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Guangdong, Peoples R China; [Shen, Chengde; Ding, Ping] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Guangdong, Peoples R China; [Tian, Chongguo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai, Peoples R China; [Chen, Yingjun] Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China
通讯作者: Li, J (reprint author), Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Guangdong, Peoples R China. junli@gig.ac.cn
作者部门: 中科院海岸带环境过程与生态修复重点实验室
英文摘要: The Asia-Pacific Economic Cooperation (APEC) summit took place in Beijing, China, 5-11 November 2014, during which numerous measures were performed to control the air pollution, and consequently, the sky of Beijing was so clean that the public called it "APEC blue." The concentrations before, during, and after the APEC summit are 14.4+/-6.81 mu g C/m(3), 6.66+/-2.99 mu g C/m3, and 32.3+/-10.6 mu g C/m(3), respectively, for organic carbon (OC), and 2.27+/-1.17 mu g C/m(3), 0.76+/-0.52 mu g C/m(3), and 4.99+/-1.74 mu g C/m(3), respectively, for elemental carbon (EC). We quantify the contributions of fossil and nonfossil sources to the OC and EC using radiocarbon. Results show that the contribution of nonfossil sources is 56+/-1% (before APEC), 61+/-1% (during APEC), and 48+/-1% (after APEC), respectively, for OC, and 36+/-4% (before APEC), 46+/-1% (during APEC), and 33+/-4% (after APEC), respectively, for EC. Comparing to the period before APEC, 70% and 60% of fossil EC and OC and 60% and 50% of nonfossil EC and OC are reduced, respectively, implying that the control on the nonfossil sources has considerable contribution to the good air quality in Beijing. Both EC and OC mass loadings during the APEC summit would have increased by 60% if the biomass-burning activities were not taken into account for control. In such a case, the atmospheric visibility would decrease 20% at least and the blue sky thereby would likely not have been visible during the summit.
研究领域[WOS]: Meteorology & Atmospheric Sciences
项目资助者: Chinese Academy of Sciences(XDB05040503) ; Natural Science Foundation of China (NSFC)(41430645 ; Guangzhou Science and Technology Plan Projects(201504010002) ; NASA/HQ ; 41473101)
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS ; NON-FOSSIL SOURCES ; ELEMENTAL CARBON ; HAZE EVENTS ; PARTICULATE MATTER ; EMISSION INVENTORY ; OPTICAL-PROPERTIES ; BACKGROUND SITE ; SOUTH CHINA ; PM2.5
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000378318100027
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/17093
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia
4.Tongji Univ, Coll Environm Sci & Engn

Recommended Citation:
Liu, JW,Mo, YZ,Li, J,et al. Radiocarbon-derived source apportionment of fine carbonaceous aerosols before, during, and after the 2014 Asia-Pacific Economic Cooperation (APEC) summit in Beijing, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2016,121(8):4177-4187.
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文件名: Radiocarbon-derived source apportionment of fine carbonaceous aerosols before, during, and after the 2014 Asia-Pacific Economic Cooperation (APEC) summit in Beijing, China.pdf
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