Papers

Microplastics increase the microbial functional potential of greenhouse gas emissions and water pollution in a freshwater lake: A metagenomic study

A lab study found that adding common types of microplastics to freshwater lake water changed the microbial community in ways that could increase greenhouse gas production and water pollution. Microplastics, especially polyethylene, boosted genes involved in methane production and nitrogen loss from water. This suggests that microplastic pollution in lakes and reservoirs could have hidden environmental effects beyond direct toxicity, including contributing to climate change and degrading water quality.

A Meta-analysis of Microplastic Pollution in Poyang Lake: Particle Size Dynamics, Polymer-Specific Risks and Ecological Threats to the Endangered Yangtze Finless Porpoise

Occurrence of microplastic pollution in rivers globally: Driving factors of distribution and ecological risk assessment

Researchers constructed a global dataset of microplastic pollution across 862 river water and 445 sediment samples, identifying population density, GDP, and plastic waste generation as key driving factors of riverine microplastic distribution and ecological risk.

Overview of the environmental risks of microplastics and their controlled degradation from the perspective of free radicals

This review examines how free radicals contribute to both the aging and controlled degradation of microplastics in river and lake water systems. Researchers analyze pollution distribution patterns and propose a novel approach using interfacial modification of materials to precisely control free radical generation for breaking down microplastics. The study offers insights into more effective strategies for reducing microplastic contamination in freshwater environments.

Toxicity of micromilimeter of polyvinly chloride and polystyrene sulfonic acid microplastics toward NCM460 cells

PVC and polystyrene sulfonic acid microplastics were tested on NCM460 human colonic epithelial cells at varying concentrations and exposure times, with CCK-8 assay results showing PS to be less toxic than PVC to intestinal cells—providing experimental evidence for differential intestinal risk assessment of these common polymers.

Impacts of wind forcing on microplastics kinematic in a sensitive water area

Researchers modeled how wind forcing affects the movement and distribution of microplastics in a sensitive coastal water area, finding that wind-driven surface currents are a dominant control on where microplastics accumulate. The model predicts substantial wind-driven concentration at specific coastal zones.

Quantifying the Impact of Changes in Sinuosity on River Ecosystems

Not directly relevant to microplastics — this study models hydrodynamic changes in a Beijing river under varying degrees of channel sinuosity and assesses habitat suitability for common carp.

Polyethylene microplastics specifically drive the dissemination of ARGs: Mechanisms involving microbial community restructuring and horizontal gene transfer

A 28-day lake water experiment found that polyethylene microplastics specifically — more than polystyrene or polypropylene — drove significant increases in antibiotic resistance genes and virulence factors in the water's microbial community, largely by restructuring which bacteria dominated and facilitating horizontal gene transfer between microbes. The plastic surface appeared to create a hotspot for resistance gene exchange by enriching certain bacterial genera that serve as hosts for these genes. Since lakes are both drinking water sources and recreational waters, this finding highlights polyethylene microplastics as a particular concern for public health.

Experimental investigation of water-saving efficiency using hexagonal diamond-shaped floating covers in large-scale evaporation ponds under static water conditions

Scientists tested special floating covers shaped like hexagons on water ponds to see if they could reduce water loss from evaporation. The covers saved about 75% of the water that would normally evaporate away, which could help communities conserve precious drinking water supplies during droughts. This simple technology could be especially valuable in dry regions where water shortages threaten public health and safety.

Enhanced adsorption performance of sulfamethoxazole and tetracycline in aqueous solutions by MgFe2O4-magnetic biochar

Researchers developed MgFe2O4-magnetic biochar adsorbents from corncob that simultaneously removed two common antibiotics — sulfamethoxazole and tetracycline — from water, offering an efficient and separable solution for antibiotic pollution remediation.

Biochar and microplastics interactively modulate morpho-physiology and growth of maize under soil drying-rewetting cycles

Mitigating the Effects of Low-Impact Development on Waterlogging and Non-Point Pollution Under Different Confluence Relationships

Researchers designed 36 scenarios combining different rainfall intensities, low-impact development (LID) practices, confluence relationships, and spatial configurations, analyzing their effects on urban waterlogging and non-point source pollution using hybrid hydraulic and water quality models. The study found that confluence pathway type significantly modifies LID performance, providing guidance for optimized deployment of green infrastructure.