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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. 27 (n°5). pp.409-413. ISSN 0365-4877

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Abstract

A method is proposed to determine the acid-base 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, if 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:This original publication is available at http://analusis.edpsciences.org/index.php?option=com_toc&url=/articles/analusis/abs/1999/05/contents/contents.html
Audience (journal):International peer-reviewed journal
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Institution: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

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