ASSESSMENT OF PESTICIDES RESIDUES IN WATER, SEDIMENT AND FISH PARTS: CASE STUDY OF FISH POND IN ADO-EKITI, NIGERIAEMMANUEL ILESANMI ADEYEYE, OLAYINKA ABIDEMI IBIGBAMI, ADEOLU JONATHAN ADESINA, MAYOWA AKEEM AZEEZ, ABDUL ADEMOLA OLALEYE, RAUF ADEOYE OLATOYE AND YUSUFF AYINDE GBOLAGADEAbstract Occurrence, distribution and accumulation of pesticides residues in water, sediment and fish parts from a dam in Nigeria were studied. A gas chromatography coupled with electron capture detector (GC-ECD) was used to quantify the pesticides residues after careful extraction and clean-up. Trace amounts of the analysed pesticides were detected in all the sampled matrixes. High level of variations were reportedin the water and sediments values as observed in the calculated CV% but being more pronounced in sediments. In general, pesticides were obviously higher in the head and muscle than liver with a percentage ratio of 36.8: 33.7:29.5 respectively. Triadimefon, heptachlor, aldrin, chlordane and prochloraz showed evidence of high accumulation in the fish parts. |