Evaluation of Organophosphorus Pesticide Residue in Cotton of Tijara Tehsil, Alwar, Rajasthan
2019
Sucheta Yadav and Subroto Dutta
Cotton is one of the most important fibres and cash crop of India, which plays a dominant role in the country’s industrial and agricultural economy. About 60% of all commercialized agrochemicals, are insanely applied on cotton fields so that cotton has become one of the most polluted and chemical-intensive agricultural crops in the world. The present study was undertaken to determine the concentration of different organophosphorus pesticides residue in cotton samples collected from agriculture fields of Tijara tehsil, Alwar. A total of 150 samples were randomly collected from the cotton farm. Concentrations of all pesticides in the cotton samples were determined by GC/MS and LC-MS. About 38% of the total analysed samples were contaminated with different residues, among which 10.66% were having the concentration of pesticide residue above the MRL. The study revealed that cotton is highly contaminated with Monocrotophos (22%) followed by Acephate (10%), Chlorpyrifos (7.33%) and Profenofos (5.33%). The possible reasons for high levels of pesticides in cotton are the massive use of pesticides and farmers were not having sufficient scientific knowledge about the chemical nature of pesticides that have been used or the effects of pesticides on the environment and the effects of pesticides exposure on public health, when using them indiscriminately. The presence of pesticides in cotton samples is a serious threat to humans because they further show pesticide residues in cotton products. Therefore, it is recommended to continuously monitor the use of this pesticide in the study areas.
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