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The ecotoxicological effects of tyre particles on mortality and behaviour in the estuarine amphipod, Corophium volutator.
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Researchers studied the ecotoxicological effects of tyre particles on aquatic organisms, examining mortality and behavioral changes at concentrations relevant to roadway runoff. Tyre particles caused both lethal and sublethal effects, supporting their classification as a significant source of toxic contaminants entering freshwater ecosystems.
Tyre particles, produced from abrasion between car tyres and roads, have been reported as a major source of microplastic pollution for aquatic environments. Tyre particles have been recognised as an environmental pollutant since the 1970s, but only in the last decade has research begun to elucidate the extent of this contamination in the natural environment. In recent years, toxicological research has begun to focus on whether the ingestion of tyre particles can cause deleterious impacts in biota. Our previous studies have shown that the estuarine amphipod Corophium volutator interacts with tyre particles at environmentally relevant concentrations, via two different feeding modes: suspension feeding and surface deposit feeding. C. volutator are a keystone organism within estuarine environments and are an important food source, with over 50 Also see: https://micro2024.sciencesconf.org/558580/document
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The ecotoxicological effects of tyre particles on mortality and behaviour in the estuarine amphipod, Corophium volutator.
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This study assessed the ecotoxicological effects of tyre particles on aquatic organism mortality and behavior, building on recognition that tyre-derived microplastics are among the most significant contributors to aquatic plastic pollution. Results showed tyre particles caused both lethal and sublethal behavioral effects in the tested species.
Environmentally relevant concentrations of tyre particles cause toxicity in estuarine invertebrates
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Researchers exposed estuarine organisms to environmentally relevant concentrations of tire particles and measured toxicity endpoints including survival, reproduction, and behavior. Tire particles caused significant adverse effects at concentrations already found in some urban estuaries, suggesting current environmental levels pose ecological risks.
Environmentally relevant concentrations of tyre particles cause toxicity in estuarine invertebrates
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Researchers tested the toxicity of tire particles at environmentally relevant concentrations on estuarine species, finding that current environmental levels are sufficient to cause harm. The study identified the most sensitive species and life stages and highlighted tire particles as a priority microplastic source for regulatory attention.
Comparison of the Uptake of Tire Particles via Suspension and Surface Deposit Feeding in the Estuarine Amphipod Corophium volutator
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Researchers exposed a common estuarine amphipod to tire wear particles at environmentally relevant concentrations and compared how much the animals consumed through two different feeding methods. They found that suspension feeding resulted in significantly higher ingestion of tire particles compared to surface deposit feeding, with particles also adhering to antennae and other body parts. The study helps clarify how bottom-dwelling coastal organisms encounter and take in tire-derived microplastic pollution.
Comparison of the Uptake of Tire Particles via Suspension and Surface Deposit Feeding in the Estuarine Amphipod Corophium volutator
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Researchers exposed the estuarine amphipod Corophium volutator to environmentally relevant concentrations of tire particles and measured ingestion through two feeding modes: suspension and surface deposit feeding. Both feeding modes resulted in tire particle uptake, with deposit feeding leading to higher ingestion, suggesting benthic invertebrates are vulnerable to tire-derived microplastic pollution.
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