Fate of herbicides and nonylphenol in soil–plant–water systems amended with contaminated sewage sludge |
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Authors: | Aline Ghanem Jacqueline Dubroca Véronique Chaplain Christian Mougin |
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Institution: | (1) INRA, Unité de Phytopharmacie et Médiateurs Chimiques, Route de Saint-Cyr, 78026 Versailles, Cedex, France;(2) Present address: Physicochimie et Ecotoxicologie des Sols d'Agrosystemes Contamines, Versailles, France |
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Abstract: | We studied the fate of sludge spiked with 14C-labelled diuron, glyphosate and nonylphenol applied to the soil by the way of contaminated sewage sludge in the soil-plant-water system. Here we show that the mineralization of the chemicals in mixture is reduced by 40–80% by comparison with a direct soil contamination. The persistence of the chemicals in soils is increased in the presence of sludge. We showed also that the chemicals present in the sludge are mobile and partly transferred to soil leachates and plant seedlings. These results allow postulating that these compounds may induce an ecotoxicological impact on the soil ecosystem. |
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Keywords: | Sewage sludge Herbicides Transformation Transfer |
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