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Pesticides in roof runoff: Study of a rural site and a suburban site

Vialle, Claire and Sablayrolles, Caroline and Silvestre, Jérôme and Monier, L and Jacob, Séverine and Huau, Marie-Christine and Vignoles-Montrejaud, Mireille Pesticides in roof runoff: Study of a rural site and a suburban site. (2013) Journal of Environmental Management, 120. 48-54. ISSN 0301-4797

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Official URL: https://doi.org/10.1016/j.jenvman.2013.02.023

Abstract

The quality of stored roof runoff in terms of pesticide pollution was assessed over a one-year period. Two tanks, located at a rural and suburban site, respectively, were sampled monthly. The two studied collection surface were respectively a tile slope roof and a bituminous flat roof. Four hundred and five compounds and metabolites were screened using liquid and gas chromatography coupled with various detection systems. Principal Component Analysis was applied to the data sets to elucidate patterns. At the rural site, two groups of compounds associated with two different types of agriculture, vineyard and crops, were distinguished. The most frequently detected compound was glyphosate (83%) which is the most commonly used herbicide in French vineyards. At the suburban site, quantified compounds were linked to agriculture rather than urban practices. In addition, all samples were contaminated with mecoprop which is a roof-protecting agent. Its presence was attributed to the nature of roofing material used for rainwater collection. For both sites, the highest number and concentrations of compounds and metabolites were recorded at the end of spring and through summer. These results are consistent with treatment periods and higher temperatures.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Veolia Environnement (FRANCE)
Laboratory name:
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Deposited On:03 Jun 2019 09:16

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