Organochlorine pesticide (OCP) contamination of groundwater used in irrigating some vegetable farms in Lagos has been assessed. Seven samples of well water from three selected vegetable farms were collected and analysed for the presence of the following organochlorine pesticide residues: α, β, δ (HCH), lindane, PP’- DDT, aldrin, dieldrin, endrin and heptachlor. The study revealed traces of…