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RESEARCH PRODUCT

Assessment of Organochlorine Pesticide Residues in West African City Farms: Banjul and Dakar Case Study

Adrian CovaciO. AkinbamijoPaul SchepensP. ManirakizaR. Pitonzo

subject

InsecticidesSoil testHealth Toxicology and MutagenesisFood ContaminationBioconcentrationToxicologyDDTchemistry.chemical_compoundWater SupplyEnvironmental protectionVegetablesSoil PollutantsCitiesWater pollutionEndosulfanPesticide residuePesticide ResiduesAgricultureGeneral MedicinePesticidePollutionSoil contaminationSenegalchemistryEnvironmental chemistrySoil waterEnvironmental scienceGambiaHexachlorocyclohexaneEnvironmental Monitoring

description

Validated analytical procedures for the determination of 21 organochlorine pesticides have been applied to 74 water samples, 76 soil samples, and 160 vegetable samples from nine Sene-Gambian farms. Mean pesticide residue levels found were compared to the results of other studies. The main contaminants were DDTs in water (231.9 ng/L), in soil (71.4 ng/g), and in vegetables (5.03 ng/g). The distribution of pesticide residues in water and neighboring soils and the soil-plant transfer of these pesticides is briefly discussed. Different bioconcentration factors for sum HCHs, sum DDTs, and sum endosulfans obtained in this study allow us to confirm the complex processes already reported in the literature concerning the uptake and translocation of chemicals from soil to plant.

https://doi.org/10.1007/s00244-002-2006-5