Effet du vieillissement des céramiques poreuses sur leur capacité à évaluer la concentration de pesticide en solution |
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| Authors: | Nicolas Domange Caroline Grégoire Véronique Gouy Michèle Tremolières |
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| Institution: | 1. Centre d''écologie végétale et d''hydrologie (CEVH), UMR MA 101 ULP/ENGEES, 1, quai Koch, BP 1039, 67070 Strasbourg cedex, France;2. Cemagref, Groupement de Lyon, 3 bis, quai Chauveau, BP 220, 69336 Lyon cedex 09, France |
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| Abstract: | The soil solution sampling by ceramic cups allows pesticide transfer monitoring in the soil during long times. The ageing of material involves a bias in the sampling results. In laboratory, the comparison of two types of ceramic suction cups, new and installed in situ during four years, shows a modification of the hydrodynamic properties and a possible evolution of the adsorption capacity of the matrix. The passage rate, as well qualitative as quantitative, is better for the old material. Recommendations about site management are finally exposed. To cite this article: N. Domange et al., C. R. Geoscience 336 (2004). |
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| Keywords: | bougie poreuse solution du sol pesticide biais adsorption suction cup soil solution pesticide bias adsorption screening |
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