Large contribution of fossil fuel derived secondary organic carbon to water soluble organic aerosols in winter haze in China
作者: Y.-L. ZhangY.-L. ZhangY.-L. ZhangY.-L. ZhangI. El-HaddadR.-J. HuangR.-J. HuangK.-F. HoK.-F. HoJ.-J. CaoY. HanP. ZotterC. BozzettiK. R. DaellenbachJ. G. SlowikG. SalazarA. S. H. PrévôtS. Szidat
作者单位: 1ale-NUIST Center on Atmospheric Environment, Nanjing University ofInformation Science and Technology, 210044 Nanjing, China
2Department of Chemistry and Biochemistry & Oeschger Centre forClimate Change Research, University of Bern, 3012 Bern, Switzerland
3Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
4Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/CollaborativeInnovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD),Nanjing University of In
刊名: Atmospheric Chemistry and Physics, 2018, Vol.18 , pp.4005-4017
来源数据库: Directory of Open Access Journals
DOI: 10.5194/acp-18-4005-2018
原始语种摘要: 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 (14C) 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...
全文获取路径: DOAJ  (合作)

  • contribution 贡献
  • fossil 化石
  • carbon 
  • organic 有机的
  • atmospheric 大气的
  • apportionment 分摊
  • secondary 二次的
  • winter 冬季
  • combustion 燃烧
  • urban 城市