At least brake emissions will be reduced, maybe, by 2040 in the EU: "Tyre and Road Abrasion as the Biggest Source of Particulate Emissions in Road Traffic."
https://hell.twtr.plus/media/e2e0338e46e9923a2faeeb7ed7498a6a02c2b9771be5c37f30da3df76271cfb9.file
https://hell.twtr.plus/media/6d843cfa676122594f3f39ce96ba7a98dc5e00e1a369ee58b9342b7cd2155032.file

Tyre and Road Abrasion as the Biggest Source of Particulate Emissions in Road Traffic
TU Graz study shows: Exhaust particles account for less than ten per cent of fine dust emissions from road traffic. Compliance with new air quality...

