Micro- and macro-scale transport of tire wear particles in aquatic environments and risk control

Abstract

Since the introduction of the microplastics (MPs) concept, these contaminants have received sustained global attention. Tire wear particles (TWPs), as a dominant anthropogenic MP fraction, have been the subject of rapidly expanding research in recent years. Sedimentation is the key process controlling the environmental fate and ecological effects of TWPs in aquatic environments, which act as their primary sink, transport pathway, and exposure medium. Elucidating TWP sedimentation mechanisms, transport behavior, and risk mitigation strategies is therefore critical to addressing their associated environmental problems. This review systematically summarizes the microscale sedimentation mechanisms, influencing factors, transport pathways, and risk control measures for TWPs in aquatic environments, incorporating recent advances in flux estimation. It provides essential insights to guide future research on TWP environmental behavior.

Keywords

TWPs / transport / microscale sedimentation / flux estimation / risk control

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