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61,005 resultsShowing papers similar to The effects of ageing process on the release of arsenic into soil pore water and related phytotoxicity assessed based on seed germination
ClearEffects of microplastics and arsenic on plants: Interactions, toxicity and environmental implications
This review examines how microplastics and arsenic interact in soil and their combined effects on plant health. When both pollutants are present together, they can have amplified toxic effects on plants, affecting growth, nutrient uptake, and stress responses. Since plants absorb these contaminants from soil, the interaction between microplastics and arsenic could increase human exposure to both pollutants through food crops.
Conventional and biodegradable microplastics affected arsenic mobility and methylation in paddy soils through distinct chemical-microbial pathways
A 98-day paddy soil experiment found that conventional microplastics reduced arsenic in porewater but increased methylated arsenic fractions, while biodegradable microplastics increased both porewater arsenic and methylation, suggesting distinct chemical-microbial pathways affecting arsenic mobility and toxicity.
The role of microplastic pollution in the modification of the physicochemical properties of arable soil and uptake of potential toxic elements by plants
Researchers conducted a series of studies analyzing how microplastic pollution modifies the physicochemical properties of arable soil and affects the uptake of potentially toxic heavy metals by plants, beginning with a comprehensive literature review of microplastic interactions with plant physiology, metals, pesticides, and pathogens.
Water-dependent effects of biodegradable microplastics on arsenic fractionation in soil: Insights from enzyme degradation and synchrotron-based X-ray analysis
This study examined water-dependent effects of biodegradable microplastics on arsenic fractionation in soil, finding that moisture regime significantly modifies how biodegradable plastic additions alter arsenic mobility and bioavailability.
Mechanistic insight into interactive effect of microplastics and arsenic on growth of rice (Oryza sativa L.) and soil health indicators
Researchers tested how different types of microplastics interact with arsenic contamination in rice paddy soil, finding that biodegradable PLA microplastics actually increased arsenic uptake by rice plants by up to 39%. In contrast, conventional polyethylene microplastics slightly reduced arsenic absorption. This is an important finding because as agriculture shifts toward biodegradable plastics, they may inadvertently increase the transfer of toxic heavy metals from soil into food crops.
Effects of arsenic on the transport and attachment of microplastics in porous media
Researchers studied how arsenic, a common groundwater contaminant, affects the movement of microplastics through soil. They found that arsenic in water generally reduced how far microplastics traveled by promoting their attachment to soil particles, though this effect depended on arsenic concentration, water flow speed, and soil moisture levels. The findings help predict how microplastics and heavy metals may interact and spread together in underground water systems.
[Adsorption Characteristics of Arsenic on UV-aged Polypropylene Microplastics in Aqueous Solution].
This study examined how UV weathering (aging) changes the ability of polypropylene microplastics to adsorb arsenic from water, finding that aged plastic had rougher surfaces and more oxygen-containing groups, which enhanced arsenic adsorption. Environmental factors like pH and dissolved organic matter also influenced how much arsenic stuck to the plastic. Because aged microplastics bind more arsenic, they could carry this toxic heavy metal into aquatic food webs more effectively than pristine plastic particles.
The combined toxicity of polystyrene microplastic and arsenate: From the view of biochemical process in wheat seedlings (Triticum aestivum L.)
Researchers found that when wheat seedlings were exposed to both arsenic and polystyrene microplastics together, the microplastics reduced arsenic uptake in roots but dramatically increased arsenic transport to the above-ground parts of the plant — by up to 1,000%. This combined exposure caused more oxidative stress and damage to the plants' photosynthetic systems than arsenic alone. The findings suggest that microplastics in contaminated soil could increase how much toxic metal ends up in the edible parts of crops.
Environmental fate, aging, toxicity and potential remediation strategies of microplastics in soil environment: Current progress and future perspectives
This review summarizes what we know about microplastics in soil, including where they come from, how they age and break down, and their toxic effects. As microplastics degrade in the environment, they can release harmful chemicals and help transport other pollutants like heavy metals through the food chain to humans. The paper also explores cleanup strategies, though effective large-scale solutions remain a challenge.
A novel mechanism study of microplastic and As co-contamination on indica rice (Oryza sativa L.)
Researchers used pot experiments and computational chemistry to study how polystyrene and polytetrafluoroethylene microplastics affect arsenic uptake in rice plants. They found that both types of microplastics interacted with rice root compounds and influenced how much arsenic the plants absorbed from contaminated soil. The study reveals a previously unknown mechanism by which microplastic pollution in agricultural soils could increase toxic metal accumulation in a major food crop.
Microplastic mediated arsenic toxicity involves differential bioavailability of arsenic and modulated uptake in rice (Oryza sativa L.)
Researchers examined how polyethylene and polylactic acid microplastics interact with arsenic contamination in rice paddies. They found that at low arsenic levels, microplastics actually reduced arsenic uptake by rice plants, but at high arsenic concentrations the combination produced synergistic toxic effects. The study reveals that the interaction between microplastics and heavy metals in agricultural soils is more complex than previously thought and depends heavily on contaminant concentration levels.
The mechanism of polystyrene microplastics to affect arsenic volatilization in arsenic-contaminated paddy soils
Researchers investigated how polystyrene microplastics at different concentrations and sizes affect arsenic volatilization in contaminated paddy soils, finding that microplastic addition increased As volatilization by up to 21.8% in highly contaminated soils. The mechanism involved microplastic-driven shifts in bacterial community composition (particularly Proteobacteria, Firmicutes, and Bacteroidetes) and arsM gene expression, alongside changes in arsenic fractionation.