| Large contribution of fossil fuel derived secondary organic carbon to water soluble organic aerosols in winter haze in China | |
| Zhang, Yan-Lin1,2,3,4,7; El-Haddad, Imad4; Huang, Ru-Jin4,5; Ho, Kin-Fai5,6; Cao, Jun-Ji5; Han, Yongming5; Zotter, Peter4; Bozzetti, Carlo4; Daellenbach, Kaspar R.4; Slowik, Jay G.4; Salazar, Gary2,3; Prevot, Andre S. H.4; Szidat, Soenke2,3 | |
| 2018-03-22 | |
| 发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 卷号 | 18期号:6页码:4005-4017 |
| 文章类型 | Article |
| 摘要 | Water-soluble organic carbon (WSOC) is a large fraction of organic aerosols (OA) globally and has significant impacts on climate and human health. The sources of WSOC remain very uncertain in polluted regions. Here we present a quantitative source apportionment of WSOC, isolated from aerosols in China using radiocarbon (C-14) and offline high-resolution time-of-flight aerosol mass spectrometer measurements. Fossil emissions on average accounted for 32-47% of WSOC. Secondary organic carbon (SOC) dominated both the non-fossil and fossil derived WSOC, highlighting the importance of secondary formation to WSOC in severe winter haze episodes. Contributions from fossil emissions to SOC were 61 +/- 4 and 50 +/- 9% in Shanghai and Beijing, respectively, significantly larger than those in Guangzhou (36 +/- 9 %) and Xi'an (26 +/- 9 %). The most important primary sources were biomass burning emissions, contributing 17-26% of WSOC. The remaining primary sources such as coal combustion, cooking and traffic were generally very small but not negligible contributors, as coal combustion contribution could exceed 10 %. Taken together with earlier C-14 source apportionment studies in urban, rural, semi-urban and background regions in Asia, Europe and the USA, we demonstrated a dominant contribution of non-fossil emissions (i.e., 75 +/- 11 %) to WSOC aerosols in the Northern Hemisphere; however, the fossil fraction is substantially larger in aerosols from East Asia and the eastern Asian pollution outflow, especially during winter, due to increasing coal combustion. Inclusion of our findings can improve a modelling of effects of WSOC aerosols on climate, atmospheric chemistry and public health. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.5194/acp-18-4005-2018 |
| 关键词[WOS] | REGIONAL BACKGROUND SITE ; SOURCE APPORTIONMENT ; ELEMENTAL CARBON ; RADIOCARBON MEASUREMENT ; ATMOSPHERIC AEROSOLS ; MASS-SPECTROMETER ; LIGHT-ABSORPTION ; ASIAN AEROSOLS ; UNITED-STATES ; BROWN CARBON |
| 收录类别 | SCI |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000428075000001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5220 |
| 专题 | 粉尘与环境研究室 |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China 2.Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland 3.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland 4.PSI, CH-5232 Villigen, Switzerland 5.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 6.Chinese Univ Hong Kong, Sch Publ Hlth & Primary Care, Hong Kong, Hong Kong, Peoples R China 7.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ KLME, CIC FEMD, Nanjing 210044, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yan-Lin,El-Haddad, Imad,Huang, Ru-Jin,et al. Large contribution of fossil fuel derived secondary organic carbon to water soluble organic aerosols in winter haze in China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(6):4005-4017. |
| APA | Zhang, Yan-Lin.,El-Haddad, Imad.,Huang, Ru-Jin.,Ho, Kin-Fai.,Cao, Jun-Ji.,...&Szidat, Soenke.(2018).Large contribution of fossil fuel derived secondary organic carbon to water soluble organic aerosols in winter haze in China.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(6),4005-4017. |
| MLA | Zhang, Yan-Lin,et al."Large contribution of fossil fuel derived secondary organic carbon to water soluble organic aerosols in winter haze in China".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.6(2018):4005-4017. |
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