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Tire wear particles: An emerging threat to soil health
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This review examines tire wear particles as an emerging source of soil contamination, finding that these microplastics contain a complex mixture of rubber, metals, and organic chemicals that can harm soil organisms. Researchers highlight that most current studies focus on individual species, which may underestimate the cascading effects on entire soil ecosystems. The study warns that tire wear particles could alter essential soil processes and ecosystem services, representing a significant but underappreciated threat to soil health.
Tire wear particles (TWP) have caused widespread contamination in the environment. However, their behavior and potential impacts in soil remain unclear since studies have so far been mainly conducted in aquatic ecosystems. It is possible that soil ecosystems are already under pressure from pollution by TWP. We here firstly synthesize knowledge about the composition, distribution, and behavior of TWP in soils. By comparing with effects of microplastics (MP) in soil, we further outline several potential impacts of TWP on soil biota and the underpinning mechanisms, and highlight the multiple pathways leading to adverse impacts of TWP on soil microbiota, soil fauna and plants. Furthermore, current knowledge about the effects of TWP is mostly based on single soil microbial species, which may underestimate the effects because of cascading consequences at the community and ecosystem levels. Therefore, more research is urgently needed to clarify the behavior and impacts of TWP from the individual organism to the Earth system level. We suggest that TWP may lead to changes in essential ecosystem services and multifunctionality, and therefore represent an emerging threat to soil health.
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Tire wear particles: An emerging threat to soil health
AI summary Read the abstract
This review synthesizes knowledge about tire wear particles — a major but often overlooked source of microplastic-like pollutants — in soil ecosystems. Tire wear particles contain toxic metals and organic compounds that harm soil microbes, invertebrates, and plants, but most research to date has focused on aquatic systems rather than soils.
Environmental occurrence, fate, impact, and potential solution of tire microplastics: Similarities and differences with tire wear particles
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This review examines tire microplastics, one of the most abundant types of microplastics in the environment, which come from tire wear on roads, recycled tire rubber, and tire repair dust. These particles carry a complex mix of chemicals including heavy metals and organic pollutants that can harm aquatic and soil organisms. Since tire microplastics end up in waterways and soil near roads, they represent a significant but often overlooked source of human microplastic exposure.
The Influence of Microplastics from Ground Tyres on the Acute, Subchronical Toxicity and Microbial Respiration of Soil
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Researchers assessed the toxicity of ground tire microplastics on soil organisms and microbial respiration, finding subchronic phytotoxicity effects that highlight the environmental risks posed by tire wear particles accumulating in soils.
Ecotoxicology of micronized tire rubber: Past, present and future considerations
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This review synthesizes what is known about the ecotoxicology of micronized tire rubber particles, which are increasingly identified as a significant fraction of environmental microplastics, examining their effects on aquatic and terrestrial organisms. The authors note that tire rubber contains a complex mixture of chemical additives that may drive toxicity beyond the physical effects of the particles themselves.
Tire wear particles in different water environments: occurrence, behavior, and biological effects—a review and perspectives
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This review examines tire wear particles, a major but often overlooked source of microplastics in water environments. Tire particles release toxic chemicals as they break down in water and can harm aquatic organisms, but most research has focused only on the chemical leachate rather than the particles themselves. Since tire wear contributes a large share of total microplastic pollution, understanding its full impact on water ecosystems and the food chain is important for human health.
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