Scientists Warn of Health Risks from Tire Pollution

A recent study highlights serious health and environmental concerns arising from tire particle pollution, now recognized as the leading source of microplastic pollution. Researchers from the University of Portsmouth have identified that tire particles differ significantly from traditional microplastics both in composition and behavior, suggesting they pose a unique threat to ecosystems.

Tire particles, which account for nearly a third of microplastic pollution, can enter water and soil systems, carrying harmful substances like polyaromatic hydrocarbons and heavy metals. These particles' specific gravities allow them to act differently in aquatic environments compared to lighter thermoplastics.

Study author Henry Obanya stated, “Our study calls for tire particles to be recognized as a unique threat to environmental and public health” and urged the need for focused research on their pathways and impacts.

Additionally, concerning findings include the detection of a toxic chemical, 6PPD, often used in tire manufacturing. This substance has been found to be acutely toxic to certain fish species and has also appeared in human urine samples in certain regions.

To combat tire pollution, researchers advocate for enhanced regulations and policies to reduce emissions and to implement cleanup strategies. Some jurisdictions, such as California, have already begun regulating tires containing harmful chemicals. Ongoing efforts to study and mitigate the impacts of microplastics are also being explored.