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Review of microplastic sources, transport pathways and correlations with other soil stressors: a journey from agricultural sites into the environment
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Researchers reviewed how microplastics spread from farms into surrounding soils, waterways, and air through both biological processes (like earthworm movement) and physical ones (like wind and runoff), while also carrying along pesticides, fertilizers, and pathogens as hitchhikers. The review highlights major gaps in our understanding of microplastic transport across landscapes and calls for more field-scale research.
Abstract This paper explores different interactions and processes involved in the transport of microplastics from agricultural systems to surrounding environments. We conducted an exhaustive review of the most recent scientific papers on microplastic transport in terrestrial systems, with an emphasis on agricultural systems. In the following sections, several aspects of this problem are discussed, namely (i) direct and indirect sources of microplastics, (ii) biotic and abiotic transportation of microplastics in and from the terrestrial environment, (iii) modelling of microplastics in the terrestrial environment and (iv) facilitated chemicals and pathogens in combination with plastic particles. There is very little information available concerning microplastic transport in the terrestrial environment; therefore, more research is needed to gain a better understanding of how these processes take place. The novelty of this review lies in assessing how microplastic transport occurs from the plastisphere (cellular) to the landscape level and from agricultural systems to the surrounding areas. Graphical Abstract
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Microplastics transport in soils: A critical review
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Researchers reviewed how microplastics move through soil, finding that their transport depends on a complex mix of particle properties, soil chemistry, water flow, and biological activity — and that these factors often interact in ways that produce contradictory results across studies. The review maps these knowledge gaps and calls for more controlled experiments to predict where microplastics accumulate and how they might reach groundwater or crops.
Sources, environmental fate, and impacts of microplastic contamination in agricultural soils: A comprehensive review
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This review examines how microplastics from fertilizers, irrigation, and atmospheric fallout are contaminating agricultural soils worldwide. Once in the soil, microplastics interact with soil organisms, disrupt plant growth, and can carry other harmful chemicals deeper into the environment. Because these tiny plastics can move up the food chain, they represent a growing threat to both food safety and human health.
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Researchers investigated the physical processes controlling microplastic transport through agricultural soils, examining how soil structure, water flow, bioturbation, and particle properties interact to move microplastics from surface application sites deeper into the soil profile or laterally toward aquatic systems. The study addressed the dual role of agricultural soils as both sinks and potential sources of microplastic pollution to surrounding environments.
Microplastics in terrestrial ecosystems: sources, transport, fate, mitigation, and remediation strategies
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This review examines how microplastics from urban, agricultural, and industrial sources are building up in soils worldwide. Wind, water, and soil organisms transport these particles across landscapes, where they persist and can affect soil structure and the health of living things. The authors highlight that land-based microplastic pollution has received far less attention than ocean pollution, despite its potential risks to ecosystems and human health through the food chain.
Source, migration and toxicology of microplastics in soil
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This review compiles research on the sources, movement, and toxic effects of microplastics in soil ecosystems, an area that has received less attention than aquatic pollution. Researchers describe how microplastics enter soil through agricultural practices, wastewater, and atmospheric deposition, then transfer through food chains to affect organisms at multiple levels. The study identifies major knowledge gaps and proposes management strategies to mitigate the ecological and human health risks of soil microplastic contamination.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.