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61,005 resultsShowing papers similar to A meta-analysis of nanomaterial and nanoplastic fate in small column experiments and implications for fate in soils
ClearMicroplastics transport in soils: A critical review
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.
Transport and transformation of microplastics and nanoplastics in the soil environment: A critical review
This critical review examines how microplastics and nanoplastics move through and transform within soil environments. Researchers discuss aggregation, sorption of contaminants, interactions with soil organisms, and degradation pathways that affect the fate of plastic particles in terrestrial systems. The study identifies major knowledge gaps in understanding subsurface plastic transport and calls for standardized methods to better assess the ecological and health risks of soil plastic pollution.
An insight into laboratory column experiments for microplastic transport in soil
This review synthesizes findings from laboratory column experiments on microplastic transport through soil, examining how particle size, shape, surface chemistry, and soil properties influence how far plastics migrate in the subsurface.
Enhanced mobility and dynamic retention of nanoplastics in mineral coated porous media.
Scientists studied how tiny plastic particles move through different types of soil and sand that might be found in groundwater systems. They discovered that these nanoplastics travel much farther and faster through soil than previously thought, especially when water flows quickly. This matters because it suggests that plastic pollution from things like food packaging and cosmetics could spread more widely through our drinking water sources than we realized.
The Fate and Risk of Micro- and Nanoplastics in Terrestrial Ecosystems
This research review summarizes what scientists currently know about tiny plastic particles (called micro- and nanoplastics) that contaminate soil and land environments. The study found that while researchers have learned a lot about plastic pollution, there are still major gaps in understanding how these particles move through soil, affect plants and animals, and potentially reach humans through food. This matters because these microscopic plastics could enter our food supply through crops grown in contaminated soil, but scientists don't yet fully understand the health risks.
Microplastics and nanoplastics in agriculture—A potential source of soil and groundwater contamination?
Researchers reviewed how microplastics and nanoplastics (tiny plastic fragments) contaminate agricultural soils and can migrate through the soil into groundwater, potentially carrying pesticides and other chemicals with them. They conclude that current analytical tools are inadequate and that plastic fragmentation in soils is a poorly understood but serious threat to drinking water supplies.
Secondary nanoplastic transport in sand and in soil
Scientists studied how tiny plastic particles called nanoplastics move through sand and soil after being broken down in the environment for many years. They found that different types of plastic particles move differently underground - some get stuck while others travel further - depending on the plastic type and soil conditions. This research helps us better understand how these microscopic plastic pieces might spread through groundwater and potentially reach drinking water sources, which could affect human health.
Nanoplastics in the soil environment: Analytical methods, occurrence, fate and ecological implications
This review covered analytical methods, occurrence data, environmental fate, and ecotoxicological effects of nanoplastics in soils, finding that nanoplastics can alter soil chemistry, physical structure, and biota in ways that threaten both natural and agricultural ecosystem functions. The authors identify standardization of nanoplastic detection in soil as a critical research gap.
Environmental fate and impacts of microplastics in soil ecosystems: Progress and perspective
This review summarized knowledge on microplastics in soil environments, covering occurrence across agricultural, industrial, and urban soils, transport pathways, and ecological risks to soil organisms and plant communities. The authors identify key data gaps and methodological challenges that currently limit understanding of microplastic fate and impact in terrestrial systems.
Microplastics in soils: A review of methods, occurrence, fate, transport, ecological and environmental risks
This review examines the sources, detection methods, and environmental behavior of microplastics in soils, an area that has received far less attention than marine microplastic pollution. Researchers found that microplastics interact with soil properties and organisms in complex ways, potentially entering the human food chain. The study calls for standardized methods and more research into how these tiny plastic particles move through and affect terrestrial ecosystems.
Research trends of microplastics in the soil environment: Comprehensive screening of effects
Researchers synthesized 106 datasets on microplastic effects on soil parameters, finding that polyethylene pellets and powders dominate experimental designs and that significant effects occurred across broad size ranges, while highlighting gaps in current soil microplastic research.
Migration and toxicology of microplastics in soil: A review
This review examines how microplastics migrate through soil, summarizes their known toxic effects on soil organisms and plants, and identifies key gaps in current understanding. Soils are increasingly recognized as major microplastic repositories, and their contamination has implications for food safety and ecosystem health.
Studying the transport and retention of naturally occurring microplastics (MPs) in sandy soils using column experiments
Scientists used laboratory experiments to study how microplastics move through sandy soils, which is relevant for understanding whether they can reach groundwater used for drinking. The findings help assess the risk of microplastic contamination in underground water supplies.
Micro/Nanoplastics in Agricultural Soils and Associated Hazard
This review surveys the sources, distribution, and hazards of micro- and nanoplastics in agricultural soils, with particular attention to how MPs interact with soil organisms, alter nutrient availability, and accumulate in crops in ways that threaten both soil health and food safety.
Soil microplastic characteristics and the effects on soil properties and biota: A systematic review and meta-analysis
Meta-analysis of 2,886 experimental groups found that microplastics significantly decreased soil bulk density and aggregate stability, indicating structural damage, while also reducing plant root biomass and soil phosphatase activity. Invertebrates were more sensitive to microplastics than other soil organisms, as particles can pass through nematode gut walls causing oxidative stress and altered gene expression.
The Effect of Polymer Type and Particle Concentration on Microplastic Transport Mechanisms in Saturated Porous Media
Scientists studied how tiny plastic particles move through soil and groundwater by testing different types of plastics at various concentrations. They found that the amount and type of plastic affects how far these particles travel underground, and that bacteria growing on the plastic surfaces can change how they move through soil. This research helps us better understand how microplastics might contaminate our drinking water sources and food supply.
Current understanding of subsurface transport of micro‐ and nanoplastics in soil
This review summarizes current knowledge about how micro- and nanoplastics are transported through soil subsurface environments. Researchers discuss the fundamental mechanisms governing plastic particle movement in soils, including size-dependent filtration, preferential flow through macropores, and interactions with soil colloids. The study highlights significant gaps in understanding how plastics migrate through different soil types and may eventually reach groundwater.
Vertical transport of polystyrene nanoplastics in natural soils under unsaturated conditions: influence of particle size and texture
Laboratory experiments showed that polystyrene nanoplastics can travel downward through unsaturated soils, but larger particles and clay-rich soils retain them more effectively than smaller particles in sandy soils. Understanding how nanoplastics move through soil is important for predicting whether they will reach groundwater and contaminate drinking water sources.
Microplastics/nanoplastics in porous media: Key factors controlling their transport and retention behaviors
This review examines what controls how microplastics and nanoplastics move through soil and other porous materials like sand and sediment. Factors like particle size, shape, surface charge, water flow speed, and the presence of other pollutants all influence whether plastics stay in place or travel deeper into groundwater. Understanding these transport behaviors is important for assessing the risk of microplastics contaminating underground drinking water sources.
The review of nanoplastics in plants: Detection, analysis, uptake, migration and risk
This review examines how nanoplastics are detected, analyzed, taken up by plants, and migrate through plant tissues from roots to edible parts. As nanoplastics are found in agricultural soils, understanding how they enter food crops is critical for assessing human dietary exposure.
Micro- and nanoplastics retention in porous media exhibits different dependence on grain surface roughness and clay coating with particle size
Researchers found that grain surface roughness and clay coatings affect the retention of microplastics and nanoplastics in porous media differently depending on particle size, with nanoplastics behaving oppositely to microplastics in certain soil conditions — complicating predictions of plastic transport in groundwater systems.
Micro-and nanoplastics in soil: New insights, knowledge gaps and challenges
Researchers from an international conference identified critical gaps in understanding how micro- and nanoplastics behave in soils, including how they move, accumulate, and affect soil organisms and plants. The workshop outcomes highlight that soil plastic pollution is understudied compared to aquatic environments, and new methods are urgently needed to close that knowledge gap.
Tiny pollutants, big consequences: investigating the influence of nano- and microplastics on soil properties and plant health with mitigation strategies
Researchers reviewed the impact of nanoplastics and microplastics on soil properties and plant health, examining absorption and translocation mechanisms in plants. The study suggests that plastic particles alter soil structure and microbial communities, impair plant growth and nutrient uptake, and proposes mitigation strategies to address these emerging threats to agricultural ecosystems.
Fate and transport of nanoplastics in complex natural aquifer media: Effect of particle size and surface functionalization
Researchers used batch and column experiments in a natural sandy aquifer to show that nanoplastic transport is governed primarily by organic matter coatings rather than particle size or surface chemistry alone, with suspended organic matter increasing mobility while dissolved organic matter reduces it — findings that improve predictions of nanoplastic contamination in agricultural groundwater systems.