Tyre & Road Wear

ETRMA is committed to contributing to a healthy environment for Europe. The tyre industry has been collaborating since 2006 through various research projects to develop a better understanding of the fate and possible effects of particles generated during normal tyre use and wear through research projects performed under the umbrella of the World Business Council for Sustainable Development (WBCSD) Tire Industry Project (TIP). Further research is ongoing.

In March 2017, ETRMA has commissioned a study to Cardno Chemrisk / Deltares aiming to build the necessary knowledge about the distribution and retention of TRWP in freshwater up to the estuary.

The results of the study on Tyre and Road Wear Particles environmental fate assessment are now published on the peer reviewed scientific journal Science of the Total Environment.

The articles can be accessed at the following links:
Part I: https://www.sciencedirect.com/science/article/pii/S0048969718328638

Part II: https://reader.elsevier.com/reader/sd/pii/S0048969718332728?token=CC5AEA41D23786E0F9BFA8C4D5B21F7976B1D4938D6877DF6F41A8EBE436863A3B83C739D37E476355F62D129E28421F

The study shows the results of the mass balance for several scenarios varying most relevant parameters affecting the fate and transportation of the particles in the freshwater. The results of the probabilistic model indicate that only 2% to 5% of TRWP released may reach the estuaries.

The most important parameters affecting the transportation of the TRWP to the estuary are their diameter and density.

This means there is a high potential for appreciable capture and retention of TRWP prior to reaching the freshwater or even the estuary.

Beside the research, ETRMA launched in July 2018 the TRWP Platform, a multi-sectorial stakeholder roundtable that aims to create an open and inclusive dialogue among all relevant stakeholders that can play a role for building the scientific knowledge and investigating possible mitigation options to the generation and transportation of TRWP into the environment.

In addition, the tyre industry, within the Tire Industry Project, has also contributed to the development of recently published ISO standards on Tyre and Road Wear Particles (TRWP):

  • June 2017: ISO/TS 20593. Determination of the mass concentration of tire and road wear particles (TRWP) -- Pyrolysis-GC-MS method.
  • December 2017: ISO/TS 21396. Determination of mass concentration of tyre and road wear particles [TRWP] in soil and sediments.
  • July 2018: ISO/TS 22638. Generation and collection of tyre and road wear particles (TRWP) - Road simulator laboratory method.
  • July 2018: ISO/TS 22640. Framework for physical and chemical characterization of tyre and road wear particles (TRWP).
  • August 2018: ISO/TS 22687. Framework for assessing the environmental fate of tyre and road wear particles (TRWP).