[tagoregrtst]

“ it’s not that absurd to worry about urban smoke outdoors contributing to urban pollution”

Where do you live that second hand smoke is a significant urban level pollutant?

Take a pack of cigarettes, 25g, divide it by 3 (your 30% of people are smokers) = 8.3 g per capita and burn it.

Now consider all the diesel per capita that is burned in this dystopian city of smokers.

No, we don't get to pretend these trucks have diesel particulate filters. Not if the city has 30% smokers. [1]

Anyway, at 8g/person, pollution controls wont save the argument - smoking is a negligible urban level pollutant.

[1] or propose a city with lots of smokers that has strict and enforced diesel rules. Tel Aviv? Israelis used to love to smoke.