DOI: 10.1002/jgrd.502012013
论文题名: Major 20th century changes of water-soluble humic-like substances (HULISWS) aerosol over Europe inferred from Alpine ice cores
作者: Guilhermet J. ; Preunkert S. ; Voisin D. ; Baduel C. ; Legrand M.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 9 起始页码: 3869
结束页码: 3878
语种: 英语
Scopus关键词: Atmospheric aerosols
; Carbon
; Military operations
; Biogenic precursors
; Carbon fraction
; Humic-like substances
; Measurements of
; Seasonal cycle
; Second World War
; Total Organic Carbon
; Twentieth century
; Ice
; aerosol
; humic acid
; ice core
; ion exchange
; organic carbon
; sea level change
; seasonality
; solubilization
; twentieth century
; Alps
; Europe
; France
英文摘要: Using a newly developed method dedicated to measurements of water-soluble humic-like substances (HULISWS) in atmospheric aerosol samples, the carbon mass quantification of HULISWS in an Alpine ice core is achieved for the first time. The method is based on the extraction of HULISWS with a weak anion-exchanger resin and the subsequent quantification of the extracted carbon fraction with a total organic carbon (TOC) analyzer. Measurements were performed along a Col du Dôme (4250m above sea level, French Alps) ice core covering the 1920-2004 time period. The HULISWS concentrations exhibit a well-marked seasonal cycle with winter minima close to 7 ppbC and summer maxima ranging between 10 and 50 ppbC. Whereas the winter HULISWS concentrations remained unchanged over the twentieth century, the summer concentrations increased from 20 ppbC prior to the Second World War to 35 ppbC in the 1970-1990s. These different trends reflect the different types of HULISWS sources in winter and summer. HULISWS are mainly primarily emitted by domestic wood burning in winter and secondary in summer being produced from biogenic precursors. For unknown reason, the HULISWS signal is found to be unusual in ice samples corresponding to World War II. © 2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63473
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: UJF-Grenoble 1/CNRS, Laboratoire de Glaciologie et Géophysique del'Environnement (LGGE), UMR 5183, Grenoble F-38041, France; National Research Centre for Environmental Toxicology (Entox), Coopers-Plains, QLD 4108, Australia
Recommended Citation:
Guilhermet J.,Preunkert S.,Voisin D.,et al. Major 20th century changes of water-soluble humic-like substances (HULISWS) aerosol over Europe inferred from Alpine ice cores[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(9)