Pesticide residues in rain water from Hisar, India |
| |
Authors: | Beena Kumari V K Madan T S Kathpal |
| |
Institution: | (1) Department of Entomology, CCS Haryana Agricultural University, Hisar, Haryana, India |
| |
Abstract: | Presence of pesticide residues was studied in rain water during 2002 employing multi residue analysis method by gas liquid
chromatography equipped with ECD and NPD detectors and capillary columns. The presence of pesticide residues in surface aquatic
system triggered the investigation of the presence of pesticides in rain water. A total of 13 pesticides were detected in
rain water samples. Among the different groups of pesticides, organochlorines were present in the range of 0.041–7.060 ppb
with maximum concentration of p,p’-DDT up to 7.060 μg l−1. Synthetic pyrethroids were present ranging from 0.100 to 1.000 μg l−1 and organophosphates in the range of 0.050–4.000 μg l−1 showing maximum contamination with cypermethrin (1.000 μg l−1) and monocrotophos (4.000 μg l−1) of the respective groups. Almost 80% samples showed the residues above MRL of 0.5 ppb fixed for multi residues and on the
basis of single pesticide, 16–50% samples contained residues above the MRL value of 0.1 ppb. |
| |
Keywords: | Rain water Monitoring Multiresidues Gas liquid chromatograph (GLC) Maximum residue limit (MRL) |
本文献已被 PubMed SpringerLink 等数据库收录! |
|