I dont want to offend here.....but i have this question - The lungs of smokers might be strong, but that doesnt mean everyone is gifted with the same sort of strong lungs. I suffer from asthma.....is pollution not enuf to keep me gasping, that i have to eat into that smoke that u have exhaled thru ur mouth, as i gasp for breath?
But my only concerns are these -1) When vehicles emit smoke, there are very few occasions when i that smoke is blown directly into my vicinity from where the air is pulled by the nose/mouth. But when someone is smoking, most of the times it gets blown into ur faces......and believe me, it gives u a feeling of getting suffocated for those few seconds, until u somehow manage to speed away from that spot......and speeding away, faster than the air is another challenge when u have Asthma.2) AFAIK, petrol/diesel dont contain nicotine, which is far more harmful.So its not the quantum of pollution - it basically is the manner of pollution, and the kind of pollutants. May be u guys have powerful lungs.....but people like me dont have that luxury!