Electric vehicles definitely help with particulates from braking. I don't see why they couldn't do active electric braking if required, as apposed to just regeneration.

Audi has a familiar-looking idea how to tackle this:

https://www.audi-mediacenter.com/en/press-releases/audi-urba...

Internal combustion cars do filter a lot of the ambient air already - a 2.0l engine at 2500RPM filters 150m3 of air per hour - that's as much as a small air purifier. It's just that it takes all this clean air and uses it for combustion, thus putting in more dirt than it filtered out.

Audi Urban Purifier's turns autos into Roombas. Neat.

Also, I'm wondering about tires which pollute less. Both in their production and usage.

To reduce particulates during use, I'm guessing tires will need to be tougher, less grippy. So might require better active suspension and braking systems to maintain current comfort and safety standards.