DOI: 10.1016/j.atmosenv.2017.06.020
Scopus记录号: 2-s2.0-85021299981
论文题名: Isotopic signatures suggest important contributions from recycled gasoline, road dust and non-exhaust traffic sources for copper, zinc and lead in PM10 in London, United Kingdom
作者: Dong S ; , Ochoa Gonzalez R ; , Harrison R ; M ; , Green D ; , North R ; , Fowler G ; , Weiss D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 165 起始页码: 88
结束页码: 98
语种: 英语
英文关键词: Atmospheric particulate matter
; Copper
; Isotopes
; Lead
; Sources
; Zinc
Scopus关键词: Antimony
; Barium
; Brakes
; Copper
; Dust
; Elementary particle sources
; Gasoline
; Industrial emissions
; Lead
; Nickel
; Recycling
; Roads and streets
; Tires
; Trace elements
; Transportation
; Urban planning
; Zinc
; Atmospheric particulate matter
; Isotope compositions
; Isotope signatures
; Isotopic composition
; Isotopic signatures
; Particulate Matter
; Trace element concentrations
; Urban environments
; Isotopes
; aluminum
; antimony
; barium ion
; chromium
; copper
; fossil fuel
; gasoline
; iron
; isotope
; lead
; nickel
; trace element
; vanadium
; zinc
; zinc ion
; atmospheric particle
; atmospheric pollution
; concentration (composition)
; dust
; fossil fuel
; heavy metal
; isotopic composition
; isotopic ratio
; particle size
; particulate matter
; petroleum
; resuspension
; road traffic
; stable isotope
; trace element
; traffic emission
; Article
; combustion
; dust
; exhaust gas
; furniture
; particulate matter
; priority journal
; recycling
; road dust
; United Kingdom
; urban area
; England
; London [England]
; United Kingdom
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: The aim of this study was to improve our understanding of what controls the isotope composition of Cu, Zn and Pb in particulate matter (PM) in the urban environment and to develop these isotope systems as possible source tracers. To this end, isotope ratios (Cu, Zn and Pb) and trace element concentrations (Fe, Al, Cu, Zn, Sb, Ba, Pb, Cr, Ni and V) were determined in PM10 collected at two road sites with contrasting traffic densities in central London, UK, during two weeks in summer 2010, and in potential sources, including non-combustion traffic emissions (tires and brakes), road furniture (road paint, manhole cover and road tarmac surface) and road dust. Iron, Ba and Sb were used as proxies for emissions derived from brake pads, and Ni, and V for emissions derived from fossil fuel oil. The isotopic composition of Pb (expressed using 206Pb/207Pb) ranged between 1.1137 and 1.1364. The isotope ratios of Cu and Zn expressed as δ65CuNIST976 and δ66ZnLyon ranged between −0.01‰ and +0.51‰ and between −0.21‰ and +0.33‰, respectively. We did not find significant differences in the isotope signatures in PM10 over the two weeks sampling period and between the two sites, suggesting similar sources for each metal at both sites despite their different traffic densities. The stable isotope composition of Pb suggests significant contribution from road dust resuspension and from recycled leaded gasoline. The Cu and Zn isotope signatures of tires, brakes and road dust overlap with those of PM10. The correlation between the enrichments of Sb, Cu, Ba and Fe in PM10 support the previously established hypothesis that Cu isotope ratios are controlled by non-exhaust traffic emission sources in urban environments (Ochoa Gonzalez et al., 2016). Analysis of the Zn isotope signatures in PM10 and possible sources at the two sites suggests significant contribution from tire wear. However, temporary additional sources, likely high temperature industrial emissions, need to be invoked to explain the isotopically light Zn found in 3 out of 18 samples of PM10. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82501
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Imperial College London, Department of Earth Science and Engineering, London, United Kingdom; CRPG, UMR 7358 CNRS-UL, Nancy, France; National Centre for Atmospheric Sciences, Division of Environmental Health and Risk Management, University of Birmingham, United Kingdom; Department of Environmental Sciences/Center of Excellence in Environmental Studies, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia; Centre for Environment and Health, King's College London, London, United Kingdom; Transport Systems Catapult, Milton Keynes, United Kingdom
Recommended Citation:
Dong S,, Ochoa Gonzalez R,, Harrison R,et al. Isotopic signatures suggest important contributions from recycled gasoline, road dust and non-exhaust traffic sources for copper, zinc and lead in PM10 in London, United Kingdom[J]. Atmospheric Environment,2017-01-01,165