Mo, Yangzhi; Li, Jun; Jiang, Bin; Su, Tao; Geng, Xiaofei; Liu, Junwen; Jiang, Haoyu; Shen, Chengde; Ding, Ping; Zhong, Guangcai; Cheng, Zhineng; Liao, Yuhong; Tian, Chongguo
; Chen, Yingjun; Zhang, Gan发表期刊ENVIRONMENTAL POLLUTION
ISSN0269-7491
2018-08
卷号239页码:322-331
关键词Asia-Pacific Economic CooperationBrown carbonCarbon isotopeFourier-transform ion cyclotron resonance mass spectrometryHumic-like substances
研究领域Environmental Sciences & Ecology
DOI10.1016/j.envpol.2018.04.041
产权排序[Mo, Yangzhi; Li, Jun; Jiang, Bin; Su, Tao; Geng, Xiaofei; Liu, Junwen; Jiang, Haoyu; Zhong, Guangcai; Cheng, Zhineng; Liao, Yuhong; Zhang, Gan] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Shen, Chengde; Ding, Ping] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Tian, Chongguo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China; [Chen, Yingjun] Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China; [Mo, Yangzhi; Su, Tao; Geng, Xiaofei; Jiang, Haoyu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
作者部门海岸带环境过程实验室
英文摘要Humic-like substances (HULIS) are a class of high molecular weight, light-absorbing compounds that are highly related to brown carbon (BrC). In this study, the sources and compositions of HULIS isolated from fine particles collected in Beijing, China during the 2014 Asia-Pacific Economic Cooperation (APEC) summit were characterized based on carbon isotope (C-13 and C-14) and Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS) analyses, respectively. HULIS were the main light-absorbing components of water-soluble organic carbon (WSOC), accounting for 80.2 +/- 6.1% of the WSOC absorption capacity at 365 nm. The carbon isotope data showed that HULIS had a lower non-fossil contribution (53 +/- 4%) and were less enriched with C-13 (-24.2 +/- 0.6 parts per thousand) relative to non-HULIS (62 +/- 8% and-20.8 +/- 03 parts per thousand, respectively). The higher relative intensity fraction of sulfur-containing compounds in HULIS before and after APEC was attributed to higher sulfur dioxide levels emitted from fossil fuel combustion, whereas the higher fraction of nitrogen-containing compounds during APEC may have been due to the relatively greater contribution of non-fossil compounds or the influence of nitrate radical chemistry. The results of investigating the relationships among the sources, elemental compositions, and optical properties of HULIS demonstrated that the light absorption of HULIS appeared to increase with increasing unsaturation degree, but decrease with increasing oxidation level. The unsaturation of HULIS was affected by both sources and aging level. (C) 2018 Elsevier Ltd. All rights reserved.
文章类型Article
资助机构Natural Science Foundation of China (NSFC) [41430645, 41773120]; Guangzhou Science and Technology Program key projects [201504010002]; Chinese Academy of Sciences [XDB05040503]
收录类别SCI
语种英语
关键词[WOS]SOLUBLE ORGANIC-CARBON; BIOMASS-BURNING AEROSOLS; ATMOSPHERIC BROWN CARBON; PEARL RIVER DELTA; LIGHT-ABSORPTION CHARACTERISTICS; SOUTHEASTERN UNITED-STATES; SOURCE APPORTIONMENT; MOLECULAR CHARACTERIZATION; BLACK CARBON; SEASONAL-VARIATIONS
研究领域[WOS]Environmental Sciences
WOS记录号WOS:000434744800032
引用统计被引频次：20[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24431
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China;
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China;
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Peoples R China;
4.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714Mo, Yangzhi,Li, Jun,Jiang, Bin,et al. Sources, compositions, and optical properties of humic-like substances in Beijing during the 2014 APEC summit: Results from dual carbon isotope and Fourier-transform ion cyclotron resonance mass spectrometry analyses[J]. ENVIRONMENTAL POLLUTION,2018,239:322-331.
APAMo, Yangzhi.,Li, Jun.,Jiang, Bin.,Su, Tao.,Geng, Xiaofei.,...&Zhang, Gan.(2018).Sources, compositions, and optical properties of humic-like substances in Beijing during the 2014 APEC summit: Results from dual carbon isotope and Fourier-transform ion cyclotron resonance mass spectrometry analyses.ENVIRONMENTAL POLLUTION,239,322-331.
MLAMo, Yangzhi,et al."Sources, compositions, and optical properties of humic-like substances in Beijing during the 2014 APEC summit: Results from dual carbon isotope and Fourier-transform ion cyclotron resonance mass spectrometry analyses".ENVIRONMENTAL POLLUTION 239(2018):322-331.
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