Determination of Organochlorine and Organophosphorous Pesticide Residues in Irrigated Water from Gubi,Waya Dams and Gudum Fulani Irrigation Sites in Bauchi LGA,Bauchi State,Nigeria Using Composite Sampling.

Document Type : Research Article


1 Fadan Bayak Sabuwar Kasuwa Railway Street

2 Department of Pure and Applied Chemistry, Bayero University Kano, Kano Nigeria.

3 Department of pure and applied Chemistry

4 Kofar Wase Road Fadan Bayak Sabuwar Kasuwa Railway Road

5 Zernike Institute of Advanced Materials, Faculty of Science and engineering, University of Groningen, The Netherlands

6 Department of Chemistry, Abubakar Tafawa Balewa University Bauchi, Nigeria.



Due to the vital role of water for humanity, it is necessary to improve and maintain its quality. Environmental and global changes especially industrial wastes, domestic and agricultural activities are the main sources of water pollution.This research seeks to investigate organochlorine and organophosphorous pesticides residues from irrigated water samples collected from Gubi, Waya Dams and Gudum Fulani irrigation sites in Bauchi, Bauchi State. Water samples were collected and extracted by liquid –liquid extraction using dichloromethane (DCM) solvent. Water extracts were quantitatively analyzed using GC-MS analysis. GC-MS analysis revealed that: Heptachlor (9.887±0.01 mg ̸ L) was detected from WS1. p,p1–DDT (0.293±0.26 mg ̸ L) was detected in WS3. Dichlorvos (2.682±0.041 mg ̸ L, 1.894±0.009 mg ̸ L) were obtained from WS1 and WS3 respectively. The results obtained exceeded their Maximum Residue Limit (MR) when compared with USEPA and Codex Alimentarious FAO ̸ WHO. The order of contamination of water samples is WS2 < WS1 < WS3 with WS3 most contaminated. The results showed that these pesticides may show some health concern and the relevant regulatory Agencies of Government should urgently regulate and reinforce the proper use of hazardous pesticides.


Main Subjects

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