[Gibbon1]

I saw and posted a link to a paper that discussed where automotive particulates come from, with estimates for each. I think brakes and tires account for 5-10% each. Most of it comes out the exhaust pipe. Also seen some articles that say that cooking with natural gas creates a lot of indoor pollution.

Say to me getting rid of gasoline and diesel cars will help a lot. Also getting rid of gas stoves and furnaces would also help.

One thing I don't see talked of much, driers. The exhaust from gas driers to me seems like something really dodgy.