Abstract
Analysis of 84 farm gate samples of seasonal vegetables carried out on GC-ECD and GC-NPD systems equipped with capillary columns by using a multi residue analytical technique revealed that 26% samples contained residues above MRL values. The contamination was mainly with organophosphates followed by synthetic pyrethroids and organochlorines. Among organophosphates, residues of monocrotophos, quinalphos and chlorpyriphos exceeded the MRL value in 23% samples. Residues of monocrotophos were higher than MRL value in 3 samples of brinjal and one sample each of okra, cauliflower and smooth gourd, of chlorpyriphos in 3 samples of cauliflower and 8 of cabbage and of quinalphos in one sample each of okra and cauliflower. Among synthetic pyrethroids, cypermethrin was the major contaminantand its residue exceeded the MRL value in one sample each of brinjal, okra and cucumber. Only aldicarb among the carbamates was detected in potato. The residues of some organochlorines,i.e. HCH, DDT and endosulfan were found in all the samples but did not exceed the tolerence limit.
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Kumari, B., Madan, V.K., Singh, J. et al. Monitoring of Pesticidal Contamination of Farmgate Vegetables from Hisar. Environ Monit Assess 90, 65–71 (2004). https://doi.org/10.1023/B:EMAS.0000003566.63111.f6
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DOI: https://doi.org/10.1023/B:EMAS.0000003566.63111.f6