Spatiotemporal dynamics of tire wear particles reveal escalating emission inequalities across China's road network

Summary

Researchers tracked how tiny bits of worn-off tire rubber—a major source of microplastic pollution—are spreading across China's roads over time and location, finding that some areas are getting hit with much more of this pollution than others, and the gap is widening. Tire wear particles can carry chemicals and end up in air, water, and soil, so understanding where they're piling up matters for figuring out who's most exposed and where cleanup or prevention efforts should focus first. Note that this repository shares the study's data-analysis code rather than presenting new health findings directly.