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题名:
Radiocarbon-Based Source Apportionment of Carbonaceous Aerosols at a Regional Background Site on Hainan Island, South China
其他题名: The Use of Conducting Polyaniline as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid.pdf
作者: Zhang, Yan-Lin1,2,3,4; Li, Jun4; Zhang, Gan4; Zotter, Peter2; Huang, Ru-Jin2; Tang, JianHui(唐建辉)5; Wacker, Lukas6; Prevot, Andre S. H.2; Szidat, Soenke1,3
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN号: 0013-936X
出版日期: 2014-03-04
卷号: 48, 期号:5, 页码:2651-2659
关键词: SECONDARY ORGANIC AEROSOL ; PARTICULATE MATTER ; CHEMICAL SPECIATION ; TROPOSPHERIC OZONE ; ASIAN AEROSOLS ; BLACK CARBON ; HONG-KONG ; BIOMASS ; FOSSIL ; EMISSION
学科分类: Engineering, Environmental ; Environmental Sciences
产权排序: [Zhang, Yan-Lin; Szidat, Soenke] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland; [Zhang, Yan-Lin; Zotter, Peter; Huang, Ru-Jin; Prevot, Andre S. H.] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland; [Zhang, Yan-Lin; Szidat, Soenke] Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland; [Zhang, Yan-Lin; Li, Jun; Zhang, Gan] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Tang, Jian-Hui] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Wacker, Lukas] ETH, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland
通讯作者: Szidat, S (reprint author), Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland. szidat@dcb.unibe.ch
中文摘要: To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (C-14) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions. The average contributions of fossil sources to EC, OC and WINSOC were 38 +/- 11%, 19 +/- 10%, and 17 +/- 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (similar to 51%) and OC (similar to 30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5-10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining C-14-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 +/- 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 +/- 16% and 44 +/- 14%, respectively.
英文摘要: To assign fossil and nonfossil contributions to carbonaceous particles, radiocarbon (C-14) measurements were performed on organic carbon (OC), elemental carbon (EC), and water-insoluble OC (WINSOC) of aerosol samples from a regional background site in South China under different seasonal conditions. The average contributions of fossil sources to EC, OC and WINSOC were 38 +/- 11%, 19 +/- 10%, and 17 +/- 10%, respectively, indicating generally a dominance of nonfossil emissions. A higher contribution from fossil sources to EC (similar to 51%) and OC (similar to 30%) was observed for air-masses transported from Southeast China in fall, associated with large fossil-fuel combustion and vehicle emissions in highly urbanized regions of China. In contrast, an increase of the nonfossil contribution by 5-10% was observed during the periods with enhanced open biomass-burning activities in Southeast Asia or Southeast China. A modified EC tracer method was used to estimate the secondary organic carbon from fossil emissions by determining C-14-derived fossil WINSOC and fossil EC. This approach indicates a dominating secondary component (70 +/- 7%) of fossil OC. Furthermore, contributions of biogenic and biomass-burning emissions to contemporary OC were estimated to be 56 +/- 16% and 44 +/- 14%, respectively.
研究领域[WOS]: Engineering ; Environmental Sciences & Ecology
关键词[WOS]: SECONDARY ORGANIC AEROSOL ; PARTICULATE MATTER ; CHEMICAL SPECIATION ; TROPOSPHERIC OZONE ; ASIAN AEROSOLS ; BLACK CARBON ; HONG-KONG ; BIOMASS ; FOSSIL ; EMISSION
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000332494200017
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/6896
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.Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
2.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
3.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland
4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
6.ETH, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland

Recommended Citation:
Zhang, Yan-Lin,Li, Jun,Zhang, Gan,et al. Radiocarbon-Based Source Apportionment of Carbonaceous Aerosols at a Regional Background Site on Hainan Island, South China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2014,48(5):2651-2659.
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