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Uptake of chemicals from tire wear particles into aquatic organisms - search for biomarkers of exposure in blue mussels (Mytilus edulis)
Foscari, A.; Herzke, D.; Mowafi, R.; Seiwert, B.; De Witte, B.; Delbare, D.; Heras, G.B.; Gago, J.; Reemtsma, T. (2025). Uptake of chemicals from tire wear particles into aquatic organisms - search for biomarkers of exposure in blue mussels (Mytilus edulis). Mar. Pollut. Bull. 219: 118311. https://dx.doi.org/10.1016/j.marpolbul.2025.118311
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
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| Author keywords |
Rubber; Benzothiazole; Dicyclohexylamine; TMQ; Phenylendiamine |
| Auteurs | | Top |
- Foscari, A.
- Herzke, D.
- Mowafi, R.
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- Seiwert, B.
- De Witte, B., meer
- Delbare, D., meer
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- Heras, G.B.
- Gago, J.
- Reemtsma, T.
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| Abstract |
Little is known about the exposure of aquatic biota to tire and road wear particles (TRWP) washed away from roads. Mussels were exposed for 7 days to model TRWP (m-TRWP), produced by milling tire tread particles with pure sand, and analyzed for 21 tire-related compounds by liquid chromatography-high resolution-mass spectrometry (LC-HRMS). Upon exposure to 0.5 g/L of m-TRWP, 15 compounds were determined from 944 μg/kg wet weight (diphenylguanidine, DPG) over 18 μg/kg for an oxidation product of N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine (6-PPDQ) to 0.6 μg/kg (4-hydroxydiphenyl amine). Transfer into mussels was highest for PTPD, DTPD and 6-PPDQ and orders of magnitude lower for 6-PPD. During 7 days depuration the concentration of all determined chemicals decreased to remaining concentrations between ~50 % (PTPD, DTPD) and 6 % (6-PPD). Suspect and non-target screening found 37 additional transformation products (TPs) of tire additives, many of which did not decrease in concentration during depuration, among them ten likely TPs of DPG, two of 6-PPD and PTPD and two of 1,2-dihydro-2,2,4-trimethylquinoline. A wide variety of chemicals is taken up by mussels upon exposure to m-TRWP and a wide range of TPs is formed, enabling the differentiation of biomarkers of exposure to TRWP and biomarkers of exposure to tire-associated chemicals. |
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