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Some studies suggest tire wear particles are toxic to aquatic organisms and can negatively impact human health, while other studies indicate they pose a low risk under typical exposure conditions.
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Tire wear particles (TWPs) are a significant source of microplastics and environmental pollutants. These particles are generated from the abrasion of tires during vehicle use and can be found in various environmental compartments, including air, water, and soil. The potential toxicity of TWPs to both human health and ecosystems has been a subject of increasing scientific scrutiny.
Environmental Presence and Risk:
Toxicity to Aquatic Organisms:
Chemical Leachates and Toxicity:
Photoaging and Enhanced Toxicity:
Human Health Risks:
Tire wear particles are a prevalent environmental pollutant with demonstrated toxicity to various aquatic organisms, primarily through their chemical leachates. The presence of heavy metals and organic compounds in these particles contributes significantly to their harmful effects. While the risk to human health from inhalation appears low, further research is needed to fully understand the potential impacts of TWPs, especially concerning long-term exposure and ingestion through the food chain.
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