In July 2018, the government launched a call for evidence looking into brake, tyre and road wear emissions.  Their evidence suggested as emissions from exhausts decrease, particulate emissions from non-exhaust sources would become increasingly important, particularly as road traffic levels are forecast to increase.

The purpose of the call for evidence was to gather evidence on these non-exhaust emissions, and to identify measures that could reduce them.

The call for evidence closed in September 2018, and the summary of responses was released in July 2019. The report concluded that further data would be required in order to ensure the levels of emissions recorded are accurate. The tests used found it difficult to determine between emissions that had come directly from the tyre, and those from re suspension, and the government will be carrying out further research with Europe.

Click here to read the full report.