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Comparative ecotoxicity of three polluted industrial soils for the Collembola Folsomia candida

Crouau, Yves and Pinelli, Eric Comparative ecotoxicity of three polluted industrial soils for the Collembola Folsomia candida. (2008) Ecotoxicology and Environmental Safety, vol. 7 (n°3). pp. 643-649.

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Official URL: http://dx.doi.org/10.1016/j.ecoenv.2008.01.017

Abstract

We tried to quantify the ecotoxicity of three industrial soil samples contaminated by different metals, using the Collembolan Folsomia candida as a biological model and mortality, growth and reproduction as parameters. The observed ecotoxicities are rather normal for the first such soil sample (aluminum factory) but are high for the second sample (ore treatment) and relatively low for the third one (zinc factory) considering its high metal concentrations. For these last two soil samples, an unusual ecotoxicity plotting is observed: two high ecotoxicity recordings fit with a low and high percentage of polluted soil to non-polluted soil and noticeably lower ecotoxicity recordings are observed between them. Chemical analyses of metals in pore waters show that arsenic probably explains part of such an unusual ecotoxicity curve. Otherwise, mortality and growth of the animals are less sensitive parameters than reproduction. Our experiments show that the results of the ecotoxicological assays of polluted soils are complex and difficult to interpret

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Ecotoxicology and Environmental Safety website : http://www.elsevier.com/wps/find/journaldescription.cws_home/622819/description#description
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: Florence Amor
Deposited On:25 Jun 2010 14:01

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