Beyond Microplastics: How Tire Wear Particles Influence Plant Performance.
Zhao T, Li G, Lozano YM, Wang Y, Lehmann A
Summary
PubMedTire wear particles (TWPs) shed from vehicles accumulate in soils and release a complex cocktail of metals, hydrocarbons, and chemical additives that measurably harm plant growth and health. This review highlights TWPs as an underappreciated form of pollution with direct consequences for terrestrial plant ecosystems.
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Key Findings
TWPs are rubber-mineral composites that continuously release evolving mixtures of metals, polycyclic aromatic hydrocarbons (PAHs), and reactive chemical additives into surrounding soils.
TWPs represent a major and distinct source of microplastic pollution in terrestrial environments, separate from conventional plastic debris.
Exposure to TWP-derived contaminants negatively influences plant performance, implicating roadside and urban soils as zones of elevated phytotoxic risk.
Original Abstract
Tire wear particles (TWPs), a major source of microplastic pollution, are mainly released in soils. TWPs are rubber-mineral composites that release evolving mixtures of metals, polycyclic aromatic hydrocarbons, and reactive additives and transformation products (e.g.,
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