Monitoring and assessment of pesticide residue in cucumber from four selected markets in Port Harcourt
Department of Crop and Soil Science, Faculty of Agriculture, University of Port Harcourt, Choba, Port Harcourt, River State, Nigeria.
Research Article
Comprehensive Research and Reviews Journal, 2022, 01(01), 030-042.
Article DOI: 10.57219/crrj.2022.1.1.0001
Publication history:
Received on 12 July 2022; revised on 15 August 2022; accepted on 18 August 2022
Abstract:
Investigation of pesticide residues of cucumber was carried out in Choba, Borokiri, Mile 1 and Mile 2 markets, Port Harcourt. The pesticide residues of fruits obtained in open markets were monitored and compared with established safety limits. The pretreated samples were Soxhlet extracted and analysed for groups of pesticide most especially OCPs content using a Gas Chromatograph coupled with an Electron Capture Detector (GC-ECD). A total of 12 OCPs and other residues were detected in most of the samples with the percentage occurrence ranging from 35% - 100%, and the levels found exceeding their Maximum Residue Limits (MRLs). The MDL of the samples was 0.0408 mg/kg α Chlordane and 0.0723 mg/kg endosulfan sulfate; while the limit of quantitation (LOQ) of these pesticides were 0.0047mg/kg and 0.3952 mg/kg respectively. Among the pesticides determined 58.7% insecticides (14), 22.7% fungicides (5) and 17.9% Herbicide (4) were detected in the tomato and cucumber samples. The mean concentration of Metoxychlor was excessively higher in samples obtained across the four markets. Also, the concentration of О’ρ Рρ, DDT (0.18±0.20) was higher than its metabolite, (0.13±0.03) in Oil Mill and Mile 3 markets (0.14±0.02) which might portend danger for our health.
Keywords:
MDL; LOQ; Pesticides; Residues; Markets; Fruits
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