Microplastic Contamination in Indian Agricultural Soils: A Growing Threat to Food Security

The implications for soil health are profound. Microplastics alter the physical structure of the soil, affecting its porosity, water-holding capacity, and nutrient cycling. They also disrupt the soil microbiome and harm essential organisms like earthworms, which are vital for soil aeration. Perhaps most concerning is the potential for bioaccumulation; microplastics can be absorbed by plant roots and enter the human food chain, posing significant long-term health risks. From a governance perspective, this issue underscores a critical gap in India’s regulatory framework. Current Environmental Impact Assessment (EIA) protocols often fail to account for the cumulative impact of microplastics from rural industries and agricultural inputs. There is an urgent need to revise these protocols and promote sustainable alternatives, such as biodegradable mulch films and enhanced wastewater treatment facilities, to safeguard India’s soil fertility and food security. UPSC Relevance: This issue is highly relevant for GS Paper III, touching upon environmental degradation, agricultural constraints, and the effectiveness of EIA protocols. It provides a nuanced case study for questions regarding the trade-offs between modern agricultural technology (plasticulture) and long-term ecological sustainability.