DOI: 10.1016/j.atmosenv.2015.06.005
Scopus记录号: 2-s2.0-84937901685
论文题名: Wet deposition of fossil and non-fossil derived particulate carbon: Insights from radiocarbon measurement
作者: Zhang Y ; -L ; , Cerqueira Má ; , Salazar G ; , Zotter P ; , Hueglin C ; , Zellweger C ; , Pio C ; , PrévÔt A ; S ; H ; , Szidat S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 115 起始页码: 257
结束页码: 262
语种: 英语
英文关键词: Fossil
; Non-fossil
; Particulate carbon
; Precipitation
; Radiocarbon
Scopus关键词: Deposition
; Fuels
; Particulate emissions
; Precipitation (chemical)
; Precipitation (meteorology)
; Rain
; Biomass burning emissions
; Dissolved organic carbon
; Fossil
; Fossil fuel combustion
; Non-fossil
; Particulate carbon
; Radiocarbon
; Thermal optical method
; Organic carbon
; carbon 14
; fossil fuel
; rain
; water
; biogenic emission
; biomass burning
; carbon
; coastal zone
; combustion
; fossil
; particulate matter
; precipitation (chemistry)
; radiocarbon dating
; wet deposition
; Article
; biomass
; carbon footprint
; cold
; combustion
; controlled study
; fossil
; human
; particulate matter
; Portugal
; precipitation
; priority journal
; seasonal variation
; Switzerland
; warming
; wet deposition
; Portugal
; Switzerland
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Radiocarbon (14C) measurements of both organic carbon (OC) and elemental carbon (EC) allow a more detailed source apportionment, leading to a full and unambiguous distinction and quantification of the contributions from non-fossil and fossil sources. A thermal-optical method with a commercial OC/EC analyzer to isolate water-insoluble OC (WIOC) and EC for their subsequent 14C measurement was applied for the first time to filtered precipitation samples collected at a costal site in Portugal and at a continental site in Switzerland. Our results show that WIOC in precipitation is dominated by non-fossil sources such as biogenic and biomass-burning emissions regardless of rain origins and seasons, whereas EC sources are shared by fossil-fuel combustion and biomass burning. In addition, monthly variation of WIOC in Switzerland was characterized by higher abundance in warm than in cold seasons, highlighting the importance of biogenic emissions to particulate carbon in rainwater. Samples with high particulate carbon concentrations in Portugal were found to be associated with increased biogenic input. Despite the importance of non-fossil sources, fossil emissions account for approximately 20% of particulate carbon in wet deposition for our study, which is in line with fossil contribution in bulk rainwater dissolved organic carbon as well as aerosol WIOC and EC estimated by the 14C approach from other studies. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81644
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemistry and Biochemistry, Oeschger Centre for Climate Change Research, University of Bern, Freiestrasse 3, Bern, Switzerland; Paul Scherrer Institute, Villigen-PSI, Switzerland; Department of Environment, Center for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal; Laboratory for Air Pollution/Environmental Technology, Empa (Swiss Federal Laboratories for Materials Science and Technology), Dübendorf, Switzerland; Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing, China
Recommended Citation:
Zhang Y,-L,, Cerqueira Má,et al. Wet deposition of fossil and non-fossil derived particulate carbon: Insights from radiocarbon measurement[J]. Atmospheric Environment,2015-01-01,115