Presencia de plaguicidas y sus productos de degradación en aguas naturales en la D.O.Ca Rioja
- E. Herrero-Hernández
- M. S. Andrades
- E. Pose-Juan
- M. S.Rodríguez-Cruz
- M. J. Sánchez-Martín
ISSN: 2013-6099
Year of publication: 2016
Issue: 41
Pages: 16-27
Type: Article
More publications in: Enoviticultura
Abstract
A multi–residual analytical method based on solid phase extraction (SPE) followed by liquid chromatography–electrospray ionization–mass spectrometry (LC–MS) was applied to monitor pesticides in natural waters. Fifty–eight compounds were surveyed to evaluate the quality of natural waters in Rioja DOCa. Ninety–two sampling points were selected, including surface and ground waters. Concentrations above 0.1 µg L–1 were detected for thirty–seven of the compounds studied (the limit established by EU for pesticides detected in waters for human use). The herbicides terbuthylazine, its metabolite desethylterbuthylazine, fluometuron and ethofumesate and the fungicides pyrimethanil and tebuconazole were the compounds most frequently detected in water samples (present in more than 60% of them). The results reveal the presence of pesticides in most of the samples investigated.