DOI: 10.1016/j.atmosenv.2014.03.009
Scopus记录号: 2-s2.0-84896113505
论文题名: Recent increase in Ba concentrations as recorded in a South Pole ice core
作者: Korotkikh E ; V ; , Mayewski P ; A ; , Dixon D ; , Kurbatov A ; V ; , Handley M ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 683
结束页码: 687
语种: 英语
英文关键词: Antarctica
; Barium
; Pollution
Scopus关键词: Barium
; Diesel fuels
; Poles
; Pollution
; Antarctica
; Close proximity
; Crustal enrichment
; Fuel burning
; High resolution
; Ice core records
; Local source
; Major and trace elements
; Ice
; barium
; diesel fuel
; trace element
; aircraft emission
; anthropogenic source
; atmospheric pollution
; barium
; concentration (composition)
; enrichment
; ice core
; research institution
; air pollution
; aircraft
; Antarctica
; article
; concentration (parameters)
; ice core record
; limit of detection
; priority journal
; Antarctica
; East Antarctica
; South Pole
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: Here we present high-resolution (~9.4 samples/year) records of Ba concentrations for the period from 1541 to 1999 A.D. obtained from an ice core recovered at the South Pole (US ITASE-02-6) site. We note a significant increase in Ba concentration (by a factor of ~23) since 1980 A.D. The Ba crustal enrichment factor (EFc) values rise from ~3 before 1980 A.D. to ~32 after 1980 A.D. None of the other measured major and trace elements reveal such significant increases in concentrations and EFc values. Comparison with previously reported Antarctic Ba records suggests that significant increases in Ba concentrations at South Pole since 1980 A.D. are most likely caused by local source pollution. The core was collected in close proximity to Amundsen-Scott South Pole Station; therefore activities at the station, such as diesel fuel burning and intense aircraft activity, most likely caused the observed increase in Ba concentrations and its EFc values in the South Pole ice core record. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81293
Appears in Collections: 气候变化事实与影响
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作者单位: Climate Change Institute, University of Maine, Orono, ME 04469-5764, United States; School of Earth and Climate Sciences, University of Maine, Orono, ME 04469-5790, United States
Recommended Citation:
Korotkikh E,V,, Mayewski P,et al. Recent increase in Ba concentrations as recorded in a South Pole ice core[J]. Atmospheric Environment,2014-01-01,89