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Dissolved organic matter contribution to rain water, throughfall and soil solution chemistry

Fillion, N. and Probst, Anne and Probst, Jean-Luc Dissolved organic matter contribution to rain water, throughfall and soil solution chemistry. (1999) Analusis, vol. 2 (n° 5). pp. 409-413. ISSN 0365-4877

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Official URL: http://dx.doi.org/10.1051/analusis:1999270409

Abstract

A method is proposed to determine the acidbase properties of natural water samples containing relatively high amounts of dissolved organic matter. The electroneutrality principle as well as titration data are used to estimate the organic anion concentration in open field precipitation, throughfall and soil solutions, and to develop empirical models based on pH and dissolved organic carbon content. The organic acids dissolved in throughfall have a similar acidic site density but are weaker than those dissolved in soil solution, stream and lake waters. This method is usefull to determine the contribution of organic anions to the charge balance and to the buffering capacity of dissolved organic rich waters with low acid neutralizing capacity. It can be used also to determine the respective contribution of natural organics and anthropogenic minerals to the total acidity of throughfall and rain waters.

Item Type:Article
Additional Information:Thanks to EDP Sciences editor. The definitive version is available at http://publications.edpsciences.org . The original PDF of the article can be found at Analusis website : http://analusis.edpsciences.org/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Institut de Recherche pour le Développement - IRD
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université Louis Pasteur-Strasbourg I - ULP (FRANCE)
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Deposited By: Florence Amor
Deposited On:17 Feb 2010 16:26

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