Tires contain complex mixtures of chemicals that are used in their production and formed during the production process or throughout the tire life-cycle. These chemicals include antioxidants like 6-PPD or its oxidation product 6-PPD quinone and 1,3-diphenylguanidine which aids in the vulcanization process. Many of these chemicals are released to the environment from tire and road wear particles (TRWP) where they may undergo transformation. We analyse and quantify tire-associated chemicals in various media from storm run-off to biota, describe their release characteristic throughout different life-stages of tires, and study their environmental fate. To better understand the fate of tire related chemicals we combine lab experiments with environmental monitoring.
Tire Industry Project 2/3
 Foscari A., Schmidt N., Seiwert B., Herzke D., Sempéré R., Reemtsma T. (2023): Leaching of chemicals and DOC from tire particles under simulated marine conditions, Frontiers in Environmental Science, 11: :1206449. DOI: https://doi.org/10.3389/fenvs.2023.1206449
 Seiwert, B., Nihemaiti, M., Troussier, M., Weyrauch, S., Reemtsma, T. (2022): Abiotic oxidative transformation of 6-PPD and 6-PPD quinone from tires and occurrence of their products in snow from urban roads and in municipal wastewater, Water Res. 212, art. 118122. DOI: https://doi.org/10.1016/j.watres.2022.118122
 Wagner, S., Klöckner, P., Reemtsma, T. (2022): Aging of tire and road wear particles in terrestrial and freshwater environments – A review on processes, testing, analysis and impact, Chemosphere 288, Part 2, art. 132467. DOI: https://doi.org/10.1016/j.chemosphere.2021.132467
 Seiwert, B., Klöckner, P., Wagner, S., Reemtsma, T. (2020): Source-related smart suspect screening in the aqueous environment: search for tire-derived persistent and mobile trace organic contaminants in surface waters, Anal. Bioanal. Chem. 412 (20), 4909 – 4919. DOI: https://doi.org/10.1007/s00216-020-02653-1
 Klöckner, P., Seiwert, B., Eisentraut, P., Braun, U., Reemtsma, T., Wagner, S. (2020): Characterization of tire and road wear particles from road runoff indicates highly dynamic particle properties, Water Res. 185, art. 116262. DOI: https://doi.org/10.1016/j.watres.2020.116262