Ecological Implications of Agrochemical Wastes on Non-Target Flora and Fauna: A Regional Appraisal with Reference to Bijnor District, Uttar Pradesh, India

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AgroEnvironmental Sustainability
Shaily Dhiman , Piyush Kumar , Sanjay Kumar Tyagi , Satish Chandra , Anchal Tyagi , Prerna Tyagi , Nishu Chaudhary

Abstract

The widespread use of agrochemicals, including pesticides, fertilizers, and plant growth regulators, has substantially increased agricultural productivity, but their indiscriminate application carries serious ecological risks. This review examines the classification, dispersal pathways, and ecological consequences of agrochemical wastes, with a regional focus on Bijnor District, Uttar Pradesh, India. Residues enter soil, water, and air through percolation, runoff, and volatilization, and subsequently undergo bioaccumulation and biomagnification. In non-target flora, exposure produces herbicide-induced physiological disturbance, suppression of soil microbial communities, and reduced plant diversity. Faunal effects include population declines among pollinators, earthworms, amphibians, fish, birds, and small mammals arising from direct toxicity, habitat contamination, and secondary poisoning. Studies from western Uttar Pradesh report pesticide residues in surface water, food crops, and wildlife, indicating the regional severity of contamination. Climate change compounds these pressures by promoting pest resistance, extending pathogen ranges, and accelerating eutrophication, with consequences for ecological stability and crop yield. The evidence reviewed here underlines the need for sustainable agrochemical management that protects environmental health without compromising agricultural resilience.

Keywords

consequences eutrophication monitoring pesticides risk assessment

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