Electric cars don't reduce emissions from tyre and brake wear. These particles make up a huge amount of air pollution at a size small enough to cause health issues. Once they settle, they are swept into waterways and form the majority of our microplastic problem.
Regenerative braking certainly is reduced by EV's; a Tesla may never replace its brakes during its lifetime.
Reading the paper, the dominant source of PM2.5/PM10 is resuspension of dust already on the road, rather than tires or brakes.
> a Tesla may never replace its brakes during its lifetime.
If you live in a northern area where they salt the roads you will need to reduce regen or perhaps occasionally do an emergency stop to grind the corrosion off the brake disks in the winter.
I had to have two brake disks replaced at the last service on my 2015 S 70D because they were too rusty.
Brakes on Tesla are said to last twice as long or more. That would be a direct reduction in brake dust. Even with my Model 3 being floored from every stoplight since I’ve bought it, I’ve yet to hear the tires chirp. Suspect the tire wear is less than a comparable gas car due to the better traction control, and the harder tread in pursuit of lower rolling resistance.
My understanding is that tires, even when accelerating, can operate in the static coefficient of friction range. And, you want them to operate in the range, because it provides the greatest acceleration. But, maybe my mental model is wrong. The following video is from someone who has considered it much more in depth.
That is a "driver's view" of tire slip (for best results, don't spin or slide the tires too much) rather than a chassis or tire engineer's view of tire slip (if you don't slip the tires, you can't generate any force).
Tires that are not slipping are not creating any force against the road surface (so they don't have to slip when coasting, but will slip while accelerating longitudinally [braking or accelerating fore/aft] or laterally [cornering]).
It's great that they're getting reductions of this magnitude for watercraft, this should absolutely continue.
But it is damning for electric cars. The tailpipe emissions (measured in this article) that are reduced by going electric are marginal in comparison, and the other emissions are still entirely present.
It doesn't seem damning, electric cars are a not a silver bullet.
This seems like an additional problem to tackle concurrently.
If we came up with a new "Environmentally Friendly" tyre that solved that problem, than we would still have exhaust emissions to deal with. You don't need to fix both to attempt to improve one.