bluebird
Besides outright stubborn righteousness, the problem is also one of combining fact with opinion and the lack of simple common sense.
Homer, FWIW, I compared being in traffic right behind a bus, not cars in general. Stop misquoting me and assigning various positions I haven’t taken. As you can see by the above post, diesel exhaust, is indeed harmful.
And, NO ONE is saying cigarette smoke is not harmful. However, you need to be within 18 inches downwind for the worst effects. Within 6 feet downwind for clearly still dangerous levels and beyond that it’s essentially negligible. Where someone pulled this 30 feet line would be news to the Standard University researchers which studied this in depth.
The outdoor bans are based on research culled from stationary settings. ie, a sidewalk cafe table or park bench where you sit down next to a smoker. Possibly worth consider guidelines, on a case by case basis. Such as the CA city that decided to ban smoking in lines.
The only issue I have here is the blatant anger and rudeness being expressed by the non-smokers when it’s hardly a great burden on your lifestyle to walk six feet around a smoker you come upon.