Chemical Leaching from Tire Wear Particles with Various Treadwear Ratings

Yoonah Jeong, Seokhwan Lee and Sang-Hee Woo
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Yoonah Jeong: Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology (KICT), Goyang-daero 283, Goyang-si 10223, Korea
Seokhwan Lee: Department of Mobility Power Research, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
Sang-Hee Woo: Department of Mobility Power Research, Korea Institute of Machinery and Materials, Daejeon 34103, Korea

IJERPH, 2022, vol. 19, issue 10, 1-11

Abstract: Physical friction between a tire and the road surface generates tire wear particles (TWPs), which are a source of microplastics and particulate matter. This study investigated the trends of chemical leaching from TWPs depending on the treadwear rating of the tire. A road simulator was used to produce TWPs from tires with various treadwear ratings. Liquid chromatography–tandem mass spectrometry was used to analyze the chemical leaching from TWPs, with a particular focus on benzothiazole and its derivative 2-hydroxy benzothiazole. However, chemical mapping via high-resolution tandem mass spectrometry detected another derivative: 2-mercaptobenzothiazole. The benzothiazole groups were observed to have different leaching tendencies, implying that using benzothiazole as a marker compound may lead to incorrect TWP quantitation. The results of this research also suggest that the ecotoxicological influence of TWPs can vary with the treadwear rating of a tire.

Keywords: tire wear particle; chemical leaching; treadwear rating; benzothiazole (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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