From the Road to the Field: Decoding Chemical Transformation in Aging Tire and Artificial Turf Crumb Rubber.

Environ Sci Technol · 2026 · PMC12810383 · PMID 41410492

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an increasing trendno p-value reported

In the turf crumb rubber sample, we observed four compounds with an increasing trend, only one of which was an expected TP (TP 280b).

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a decreasing trendno p-value reported

Under wet outdoor aging conditions, we observed 14 compounds following a decreasing trend in all three sample types, including 6PPD, MBT, TMQ, and BTH, suggesting continued transformation in tire and artificial turf crumb rubber during a period of 12 weeks.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.