Regular monitoring of pesticide residues in different vegetables and soils collected from different district of Bihar during 2010-12 was done to assess its potential impact on human beings and environment. The concentration of pesticide residues of five commonly used pesticides namely endosulfan, malathion, chlorpyrifos, cypermethrin and fenvalerate were evaluated by multi-residue analysis method. About 33% vegetable samples contained detectable residues collected from farm gate and 35% from market basket with one or the other out of five under study. The results reflected that few of the samples exceeded the maximum residue limits (MRLs). The mean range of residues was found to be 0.006-0.228 mg kg-1. The majority of samples found high concentration of cypermethrin and chlorpyriphos residues in market basket vegetable samples and contained residues above MRL. Persistence of pesticide was low in calcareous soil and microbial population was not much affected.Key words: Calcareous soil, Gas liquid Chromatography, Maximum residues limits

Pesticide residues in farm gate and market basket vegetables grown in calcareous soils of Bihar, India

248th National Meeting (2014)

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