NDLI: Persistence of dicofol residues in cotton lint seed, and soil

Content Provider	Springer Nature Link
Author	Kumari, Beena Duhan, Anil
Copyright Year	2011
Abstract	A supervised field trial was conducted at the CCS Haryana Agricultural University, Hisar to assess the residues of dicofol on cotton, during Kharif season, 2008. Dicofol (Kelthane 18.5EC) was applied at 500 g a.i./ha (T1) and 1,000 g a.i./ha T2) after 105 days of sowing of cotton crop (Varity Cotton/H-1226). Soil samples were collected on 0 (1 h after treatment), 3, 7, 10, 15, 30, and 60 days after spray and cotton samples were collected at harvest. Samples were processed and residues were quantified by GC-ECD system equipped with capillary column. Limit of detection and limit of quantification (LOQ) were 0.001 and 0.010 mg kg − 1, respectively, for soil and LOQ for cotton lint and seed was 0.020 mg kg − 1. Initial residues of 0.588 and 1.182 mg kg − 1 in soil reached below detectable level (BDL) of 0.010 mg kg − 1 in T1 and to the level of BDL (0.010 mg kg − 1) in T2 at harvest (60 days after treatment). In 60 days, residues dissipated almost completely (100 and >99%) in both the treatments. Half-life period was calculated as 8.57 days at single dose and 8.69 days at double dose in soil. Residues of dicofol were detected in cotton lint to the levels of 0.292 and 0.653 mg kg − 1 and in seed 0.051 and 0.090 mg kg − 1 in T1 and T2 doses, respectively at harvest. Residues in cotton seed were below MRL value of 0.01 mg kg − 1 in both the doses.
Starting Page	129
Ending Page	132
Page Count	4
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	182
Issue Number	1-4
e-ISSN	15732959
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-01-21
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Soil Cotton lint Cotton seed oil Dicofol GC analysis Half-life period Environmental Management Ecology Ecotoxicology Atmospheric Protection/Air Quality Control/Air Pollution Environmental Monitoring/Analysis
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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