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20 resultsShowing papers similar to Impact of microplastics on strength parameters of clayey, Sandy, silty soil: A comparative assessment
ClearImpact of microplastic pollution in terrestrial ecosystem on index and engineering properties of sandy soil: An experimental investigation
Researchers tested how different concentrations of three common plastic types affect the physical and engineering properties of sandy soil. They found that increasing microplastic contamination significantly altered soil characteristics including liquid limit, plasticity, compaction, and shear strength. The findings suggest that microplastic pollution in the ground could potentially compromise the structural stability of soil used in construction and land management.
Effect of low-density polyethylene, polyvinyl chloride, and high-density polyethylene micro-plastic contamination on the index and engineering properties of clayey soil- an experimental study
Researchers examined how low-density polyethylene, polyvinyl chloride, and high-density polyethylene microplastics affect the index and engineering properties of clayey soil, finding that microplastic contamination alters soil behavior relevant to geotechnical engineering.
Geotechnical Implications of Microplastics: A Review of Their Effects on Soil Mechanical Parameters
This review compiled and analyzed findings from previous studies on how microplastics affect soil mechanical parameters — including compressibility, permeability, shear strength, settlement, and slope stability — concluding that microplastic contamination can substantially alter geotechnical soil behavior with implications for engineering and construction.
Geotechnical Implications of Microplastics: A Review of Their Effects on Soil Mechanical Parameters
This review compiled and analyzed findings from previous studies on how microplastics affect soil mechanical parameters — including compressibility, permeability, shear strength, settlement, and slope stability — concluding that microplastic contamination can substantially alter geotechnical soil behavior with implications for engineering and construction.
Microplastics in soils: an environmental geotechnics perspective
This geotechnical engineering perspective reviewed microplastic contamination in soils and the terrestrial subsurface, examining how MPs alter soil mechanical properties — including shear strength, hydraulic conductivity, and compressibility — and arguing that geotechnical impacts have been underappreciated in environmental assessments.
How Do Microplastics Affect Physical Properties of Silt Loam Soil under Wetting–Drying Cycles?
Researchers investigated how microplastics of different sizes and types affect the physical properties of silt loam soil under repeated wetting and drying cycles. The study found that microplastics altered soil water retention and structural stability during these cycles, with effects varying based on particle size and polymer type, indicating that microplastic contamination could influence agricultural soil behavior.
Microplastic Contamination in Soils: A Review from Geotechnical Engineering View
Researchers reviewed microplastic contamination in soils from a geotechnical engineering perspective, examining how plastic degradation leads to widespread soil contamination. They identified landfills and various geotechnical applications such as tire chip fills and polystyrene lightweight fills as potential sources of microplastic pollution in soils. The review highlights the need for geotechnical engineers to consider the long-term effects of microplastic contamination on soil properties and groundwater quality.
Effects of microplastics on the hydraulic properties and pore characteristics of compacted soil
Researchers investigated how polyethylene microplastics affect the hydraulic properties and pore structure of compacted soil, finding that higher microplastic concentrations disrupted pore size distribution and reduced saturated hydraulic conductivity while altering water retention capacity.
Minimal Impacts of Microplastics on Soil Physical Properties under Environmentally Relevant Concentrations
Researchers measured the physical properties of silt loam soil after incorporating polyester fibers and polypropylene granules across a wide range of concentrations. The study found that at environmentally relevant concentrations, microplastics had minimal impacts on soil physical properties such as water retention and aggregate stability, suggesting that current contamination levels may not significantly alter soil structure.
Impact of Different Microplastics on Soil Evaporation Rates: A Comparative Analysis Across Chernozem, Umbrisol, and Luvisol
Researchers assessed the effects of high-density polyethylene, polyvinyl chloride, and polystyrene microplastics at 5% w/w concentration on evaporation rates, dry bulk density, and saturated water content across three soil types (Chernozem, Umbrisol, and Luvisol), finding that all three polymer types significantly altered soil physical properties in ways that varied by both polymer type and soil classification.
Microplastics Can Change Soil Properties and Affect Plant Performance
Researchers tested six different types of microplastics in soil and found that they altered key soil properties including water-holding capacity, bulk density, and microbial activity. These changes in soil structure had cascading effects on plant growth, with some microplastic types reducing above-ground biomass. The study demonstrates that microplastics can fundamentally change how soil functions, with consequences for plant health and ecosystem stability.
Aging Dynamics of Polyvinyl Chloride Microplastics in Three Soils with Different Properties
Researchers tracked how PVC microplastics age and degrade over 12 months in three different soil types. They found that soil properties significantly influenced the aging process, with sandy soil promoting more surface oxidation and silty clay causing greater physical fragmentation into smaller particles. The study reveals that microplastics do not remain static in soil but undergo continuous chemical and physical changes that may affect their environmental impact over time.
Determinants of environmental changes in human-modified ecosystems: Effects of plastics on moisture gradients, nutrients, and clay properties
Researchers examined how plastic pollution affects soil properties in human-modified ecosystems through field experiments in China and Rwanda, combined with laboratory tests on clay mixed with PET microplastics. They found that microplastics altered the structural properties of natural clay, decreasing moisture content while increasing density and load-bearing capacity. The study suggests that plastic accumulation in soils can fundamentally change moisture gradients, nutrient availability, and physical soil characteristics.
Strain-Dependent Effects of Microplastic Contamination on the Strength and Modulus of Kaolin Clay
When wildfires burn plastic materials near cities, they create tiny plastic particles called microplastics that settle into soil with the ash. Scientists found that when these microplastics mix with clay soil, they change how strong and stiff the soil is, which could affect building foundations and construction safety. This matters because wildfires are becoming more common, potentially making contaminated soil a bigger problem for communities rebuilding after fires.
Polyester microplastic fibers rearrange soil physical quality indicators without compromising hydraulic function in six Mediterranean soils: Insights from S-theory indicators
Researchers investigated how polyester microplastic fibers affect soil physical quality in six Mediterranean soils at various contamination levels over six months. They found that while microplastics altered key soil structure indicators, creating larger pore spaces and enhanced aggregation, the overall water-holding capacity and hydraulic function remained largely preserved. The effects were most pronounced at the highest concentration tested and varied by soil type, with moderate-clay soils showing the most change.
Impacts of Microplastics on the Soil Biophysical Environment
Four common microplastic types (polyacrylic fibers, polyamide beads, polyester fibers, PE fragments) were added to loamy sand soil at environmentally relevant concentrations in a garden experiment and effects on soil-water relationships, structure, and microbial function were measured over 5 weeks. Results showed that microplastics altered water repellency, aggregate stability, and microbial activity in a plastic-type-dependent manner, confirming that microplastics can disrupt fundamental soil biophysical processes.
Impact of Microplastics on Soil Health: Soil-Water Retention, Shrinkage and Holding Properties
A review of research on microplastics in soil found that plastic particles can alter water retention, shrinkage, and structural properties in ways that could reduce agricultural productivity. Because microplastics are as prevalent in soils as in oceans, their terrestrial impacts warrant much greater research attention.
Concentration‐ and Size‐Dependent Influences of Microplastics on Soil Hydraulic Properties and Water Flow
Researchers investigated how microplastic concentration and particle size affect soil hydraulic properties and water flow. They found that microplastic contamination reduced saturated conductivity by up to 50% and inhibited water infiltration, with higher concentrations and larger particle sizes leading to weaker soil water-holding capacity.
Impact of Plastic Residues on Soil Properties and Crop Productivity: A Comprehensive Research Study
This agricultural field study assessed how plastic residues at varying contamination levels affect soil physical, chemical, and biological properties and crop productivity, finding that higher microplastic concentrations disrupted soil structure, reduced microbial activity, and lowered plant growth.
Effects of microplastic contamination on the hydraulic, water retention, and desiccation crack properties of a natural clay exposed to leachate
Researchers examined how microplastic contamination affects the physical properties of natural clay soil exposed to landfill leachate. They found that microplastics significantly increased the soil's water permeability, reduced its water retention capacity, and altered desiccation cracking patterns. The findings suggest that microplastic pollution could compromise the integrity of clay barriers used in landfill liners and other engineering applications.