期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：10
页码：3496-3501
出版社：University of Mohammed Premier Oujda
摘要：Extensive pesticide usage in modern agriculture in Souss Massa region (south of Morocco ) represents a considerable anthropogenic stressor to the coastal ecosystems and particularly estuarine ecosystems at risk from the effects of these contaminants. In order to assess the organochlorine pesticides (OCPs) contamination in Oued Massa estuary, surface sediment sample are collected seasonally between winter 2009 and autumn 2010. The concentrations of organochlorine pesticides (OCPs) in sediment, were analyzed by gas chromatography using electron capture detector (GC/ECD). Five OCPs residues are detected in the ecosystem: Endosulfan, bifentrin, deltamethrin, aldrin and lindane. The total OCPs concentrations ranged from 57.39 to 281 ng g1 dw. Endosulfan and lindane were abundant in the estuarine sediment. The concentrations of OCPs in sediment collected in winter 2009 (281 ng g−1dw) were higher than those in other seasons. The results obtained in this study show a presence of the pesticides residues during all sampling season. This contamination could be related to the most intense use of this product in Souss Massa region. Therefore, continued monitoring of pesticides in this area is needed to determine the potential risks and ensure the health of the aquatic organisms within the Oued Massa estuary throughout the year.
