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Microplastics in Agricultural Soils: An Emerging Threat to Soil Health, Microbial Ecology, Crop Productivity, and Food Safety

International Journal of Plant & Soil Science 2025 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Souvik Ghosh, Divyansh Verma, Kishan Kumar, Rinka Pramanik, Sumana Balo, Debasis Mahata, AK Saini, A. Mani

Summary

This review examines how microplastics accumulate in agricultural soils from sources like plastic mulch, sewage sludge, and atmospheric deposition. Researchers found that these particles can disrupt soil microbial communities, harm plant health, and potentially enter the human food chain. The study highlights the urgent need for mitigation strategies to address this growing but often overlooked form of pollution in farmland.

Microplastics have emerged as a pervasive environmental pollutant, infiltrating terrestrial ecosystems, including agricultural soils. These tiny plastic particles (<5 mm) originate from various sources, such as plastic mulching, sewage sludge application, and atmospheric deposition. Their persistence in soils poses significant risks to soil microbial communities, plant health, and ultimately human wellbeing through the food chain. This review synthesizes current knowledge on the sources, distribution, and fate of microplastics in agricultural soils, their effects on soil microbial diversity and function, and the potential implications for human health. We also discuss mitigation strategies and future research directions to address this growing environmental concern.

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