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Microplastic Contamination in Agricultural Soil: Sources, Distribution, Impact and Management: A Review
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This review pulls together existing research showing that farm soils now contain even more tiny plastic bits than ocean water does, largely from plastic mulch, sewage sludge, and irrigation water. These microplastics can harm soil health, reduce crop growth, and carry along other harmful chemicals like pesticides—and since they've been found inside the edible parts of plants, they may be making their way into our food, though scientists still don't fully know what that means for human health. Bottom line: this is a growing, under-the-radar problem worth watching, but the solutions being tested (like special soil additives) aren't ready for widespread use yet.
Microplastic pollution of agricultural land has emerged as one of the more consequential, yet under-regulated, forms of soil contamination confronting global food systems. Plastic debris smaller than five millimetres accumulates in farmland through plastic mulching, sewage sludge and compost application, wastewater irrigation, atmospheric deposition and the breakdown of agricultural equipment, and it now appears to occur at concentrations exceeding those reported for marine surface waters. This review synthesises the current understanding of the sources, distribution, environmental fate and ecological consequences of microplastic contamination in agricultural soils, together with the emerging repertoire of management and remediation options. The available evidence indicates that microplastics alter soil structure, water retention and aggregate stability; disturb microbial community composition and nutrient cycling; impair the growth, physiology and reproduction of soil fauna; and reduce germination, biomass and yield in a range of crop species, with effects that vary strongly according to polymer type, particle shape, concentration and soil texture. Microplastics also act as vectors for co-contaminants, including pesticide residues and persistent organic pollutants, and their detection in edible plant tissue raises unresolved questions about dietary exposure and human health. Remediation approaches under investigation include biochar and mineral amendments, microbial and enzymatic bioremediation, plant growth-promoting rhizobacteria, phytoremediation and substitution with soil-biodegradable polymers, although none has yet achieved reliable field-scale performance. The review concludes that agricultural microplastic pollution requires coordinated attention from soil science, agronomy, ecotoxicology and policy, and it identifies methodological standardisation, long-term field trials and exposure-realistic toxicology as priorities for future research.
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Microplastics in agricultural soils, their sources, environmental impacts, ecological risks, and mitigation strategies
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Tiny plastic bits are building up in farm soil from sources like plastic mulch, sewage-based fertilizers, and irrigation water, and this review of existing research shows they can mess with soil's ability to hold water and nutrients while also acting as hitchhikers for heavy metals, pesticides, and harmful germs. Since this soil grows our food, contaminated farmland could mean these pollutants—and the microplastics themselves—end up on our plates. The good news: solutions like biodegradable farm materials, natural soil additives, and better monitoring could help curb the problem if adopted widely.
The Hidden Threat Beneath: Fate, Behaviour and Effects of Microplastics in Agricultural Soils
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This review pulls together years of research showing that tiny plastic particles are building up in farm soils—often at higher levels than in ocean water—from sources like plastic mulch, sewage sludge, and irrigation water. These microplastics can harm soil health and creatures like earthworms, get absorbed into crops we eat, and have even been found in human tissue like the placenta, raising real questions about long-term food safety. While scientists are still figuring out exactly how dangerous this is, the findings suggest it's worth paying attention to how plastic use in farming might quietly be making its way into our food supply and bodies.
Microplastics in Agricultural Soils: An Emerging Threat to Soil Health, Microbial Ecology, Crop Productivity, and Food Safety
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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.
Impact of microplastics in agriculture
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This review paper pulls together existing research on how tiny plastic particles (microplastics) end up in farm soil — often through fertilizers, irrigation water, and plastic mulches used to grow crops. These plastics can harm soil health, disrupt nutrients, and affect the small creatures that keep soil fertile, which may ultimately impact the crops and livestock that end up on our plates. The findings matter because they suggest microplastics could be quietly working their way into our food supply, though more research is needed to understand exactly how this affects human health.
The hidden burden of microplastics in soils: sources, impacts, and sustainable solutions – a review
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This review pulls together existing research on how tiny plastic particles (microplastics) are building up in farm soils—coming from sources like plastic mulch, wastewater, and sewage sludge used as fertilizer. These particles can harm soil microbes and disrupt nutrient cycles that crops depend on, which matters because it ties directly to our food supply and the plastic content of the food we eat. The authors note that scientists still need better tools to detect microplastics and stronger policies to clean up and prevent this pollution before it becomes a bigger problem for food security.
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