Orgnochlorine and synthetic pyrethroid pesticides in agricultural soil and water from Chamaranagar district, Karnataka, India

摘要

Eight Organochlorine (OC) and two synthetic pyrethroids (SP) were measured in soil, rice field, and sub canal and river water in samples collected from around Chamranagar District, Karnataka State, India. The soil and water samples were extd. by Multiresidue Method and analyzed during Gas Chromatograph equipped with ECD (Electron Capture Detector)​. The av. contamination with OC and SP in soil (0.00 to46.60 μg​/kg) which was higher than sub canal water (0.25 to34.12 μg​/l) and the av. residue of both was more than the rice field water (0.15 to 4.65 μg​/l)​. The Endosulfan residues were generally the highest in the soil samples in comparison with water and the av. values were in the order of: soil (68.20 μg​/kg)​> sub canal water (32.26 μg​/l) > rice field water (2.57 μg​/l)​. The av. residue of Cypermetrin in soil (8.60 μg​/kg) was highest followed by field water (0.92 μg​/l) and sub canal (0.247 μg​/l) whereas contamination with Fenvalerate was: sub canal (20.57) >soil (19.20 μg​/kg)​> field water (0.47)​.