Organochlorine Pesticide Residues in Freshwater Fish Species from Sri Lanka: A Human Health Risk Assessment
[1]
Bedigama Kankanamge Kolita Kamal Jinadasa, Analytical Chemistry Laboratory (ACL), National Aquatic Resources Research & Development Agency (NARA), Colombo, Sri Lanka.
[2]
Gabadage Dona Thilini Madurangika Jayasinghe, Analytical Chemistry Laboratory (ACL), National Aquatic Resources Research & Development Agency (NARA), Colombo, Sri Lanka.
Twenty organochlorine pesticide residues (OCP) were analysed in the muscle tissue of the seven selected fish species (n=42) known as Tilapia (Oreochromis sp.), Striped snakehead (Channa striata), Eel (Anguilla sp.), Pearl spot (Etroplus suratensis), Long whiskers catfish (Mystus gulio), Stinging catfish (Heteropneustes fossilis), Zig-zag eel (Mastacembelus armatus) with the aim of assessing the health risk to adult Sri Lankan. The fish were collected from the landing site located at the freshwater reservoir in Anuradhapura district from Nov-Dec. 2015. The QuEChERS method was used to extracted and purified of the samples and gas chromatography (GC) coupled with Electron Capture Detector (ECD) was used to OCP analyse. The γ-BHC was the most commonly detected compounds in the fish samples and it was accounted as 71% of the analysed samples respectively. Out of the 20 OCP considered in this study, 10 were present in the various concentrations. The Eel was the most contaminated fish species found through this study (2,440.67 ng/g, ww basis) and followed by Tilapia (1,535.00 ng/g, ww). The results raise concern the possible non-carcinogenic risk and there was no carcinogenic health risk the results of exposure of the consumption of fish selected fish species.
Organochlorine Pesticide Residues (OCP), Freshwater Fish, Anuradhapura, Contamination
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