Major 20th century changes of water-soluble humic-like substances (HULISWS) aerosol over Europe inferred from Alpine ice cores

Guilhermet J., Preunkert S., Voisin D., Baduel C. and Legrand M. (2013) Major 20th century changes of water-soluble humic-like substances (HULISWS) aerosol over Europe inferred from Alpine ice cores. Journal of Geophysical Research D: Atmospheres, 118 9: 3869-3878. doi:10.1002/jgrd.50201

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Author Guilhermet J.
Preunkert S.
Voisin D.
Baduel C.
Legrand M.
Title Major 20th century changes of water-soluble humic-like substances (HULISWS) aerosol over Europe inferred from Alpine ice cores
Journal name Journal of Geophysical Research D: Atmospheres   Check publisher's open access policy
ISSN 0148-0227
2169-8996
Publication date 2013-08-16
Year available 2013
Sub-type Article (original research)
DOI 10.1002/jgrd.50201
Open Access Status File (Author Post-print)
Volume 118
Issue 9
Start page 3869
End page 3878
Total pages 10
Place of publication Hoboken, United States
Publisher Wiley-Blackwell Publishing
Collection year 2014
Formatted abstract
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.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
National Research Centre for Environmental Toxicology Publications
 
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Created: Thu, 28 Nov 2013, 17:45:28 EST by System User on behalf of National Res Centre For Environmental Toxicology