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Assessing microplastic translocation from contaminated agricultural soils to food crops
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Tiny plastic bits from mulch films, sewage-based fertilizers, and contaminated irrigation water are building up in farm soils—and this review of existing research confirms they don't just stay in the dirt. These plastics can actually move into the edible parts of crops, harm soil health and plant growth along the way, and create a direct route for plastic to end up on your plate. The researchers call for better plastic alternatives, stronger waste management, and more study to fully understand what this means for human health long-term.
Microplastic (MP) and nanoplastics (NP) pollution presents a critical, globally pervasive environmental challenge, fundamentally threatening the sustainability of agricultural soil health and food production. The current state of knowledge regarding the impact of these ubiquitous plastic particles, typically defined as those between 1 μm and 5 mm, in terrestrial ecosystems. The paper identifies key pathways of contamination into farmlands, primarily stemming from the pervasive degradation of plastic mulching films. The extensive land application of sewage sludge (biosolids) as fertilizer and the use of contaminated wastewater for irrigation. The accumulation of MPs/NPs in the soil matrix is shown to induce significant ecological stress. Key findings reveal detrimental effects on soil physicochemical properties, disruption of native microbial communities and a measurable reduction in crop performance, evidenced by compromised nutrient uptake and photosynthetic efficiency. A major concern addressed is the critical evidence of MP/NP translocation from the soil into the edible tissues of agricultural crops, which creates a direct pathway for human exposure and subsequent health risks via the food chain. To combat this rising threat, the paper underscores the urgent need for a cohesive, global response. Sustainable solutions must involve implementing robust policy frameworks, such as the FAO’s Voluntary Code of Conduct, accelerating the transition to certified biodegradable plastic alternatives and drastically improving international waste management, recycling infrastructure and use of biochar in agricultural lands. Future research is essential to quantify the full spectrum of long-term ecological risks, model MP transport dynamics and comprehensively assess the human health implications. Graphical Abstract
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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.
Micro- and Nanoplastics in Agricultural Crop Systems: From Environmental Particles to Plant Phenotypes and Food-System Relevance
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Tiny plastic particles from mulch films, compost, and irrigation water are building up in farm soils, and this review pulls together existing research on how they affect crops—from stressing plant cells to potentially moving into the parts we eat. The evidence that plastics can travel from soil into food is growing but still incomplete, so scientists say more realistic farm-based studies are needed before we know exactly how much this matters for what ends up on our plates.
Microplastics in agricultural soils: sources, soil–plant interactions, ecotoxicological effects and food security concerns
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This review pulls together existing research on how tiny plastic bits get into farm soil, through mulch, wastewater, and even air, and shows they can harm soil health and be absorbed by crops. Since plants can carry these particles into the parts we eat, this raises real questions about microplastics entering our food supply and affecting human health, though more long-term studies are needed to know the full impact.
Microplastics in agricultural landscapes: assessment of environmental risks and systemic approaches to sustainable management
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Tiny plastic bits are building up in farm soil from sources like plastic mulch films, sewage sludge, coated fertilizers, and contaminated irrigation water — and this review pulls together existing research to map out how that pollution spreads and what risks it poses. The concern for your health: these microplastics can disrupt soil health and potentially work their way up the food chain into what we eat, though more monitoring is needed to fully understand the danger. The paper mainly argues for better tracking systems and stricter regulations (similar to EU standards) to catch this problem before it grows.
Micro/Nanoplastics in Agriculture: Uptake, Translocation and Bioaccumulation in Plants and Their Ecological Implications
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Tiny plastic particles from pollution are building up in farm soils and getting absorbed by plants through their roots, then traveling up into the leaves, fruits, and other parts we eat. This review of existing research shows these plastics can interfere with how plants grow and take up nutrients, and their presence in edible crops raises real concerns about how much plastic might be ending up on our dinner plates. Scientists still need better, standardized tools to detect these particles and develop ways to keep them out of our food supply.
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