Pesticide Research Journal

Effect of handy household techniques for water treatment like boiling, treatment with KMnO₄ (1.5 mg L⁻¹) or iodine (tincture iodine, 0.4mL L⁻¹) on the decontamination of endosulfan (alpha and beta), chlorpyrifos and lindane is reported. At 0.01 μg mL⁻¹ boiling for 1min removed alpha and beta endosulfan upto 97.2 and 67.7%, respectively, lindane upto 66% and chlorpyrifos upto 40%. Iodine removed 100% of alpha and 84% of beta endosulfan but only 17.9% of chlorpyrifos. Chlorpyrifos was removed maximum (64.8%) by KMnO₄. The removal was relatively less at higher concentrations of pesticides suggesting a need for more contact time or a higher concentration of the reagent.