If someone is driving a SUV down the sidewalk I would probably call the police. The EPA is legally empowered to deal with air pollution, sure we carve out exceptions for the common good, but the default is not dump whatever you want into the air.
In the course of this discussion thread, we've jumped from the danger of e-cig vapor (which is nil) to the danger of pure nicotine (which is also nil) and now we're talking about pollution. Can't we just agree that those are three separate issues (two of which are non-issues, and third isn't really discussed by people right now)? So far everything is showing that e-cigs are a neglible hazard to smokers and their surroundings. We should be happy we've found a good alternative for the decades-old problem, instead of trying to destroy it by overblowing its negative effects by orders of magnitude.
[0] - Googling just now, I found that there are reasons for considering cigarette smoke an air pollution - http://epi.yale.edu/the-metric/considering-smoking-air-pollu...
[1] - I haven't seen any analysis about potential of e-cigarette smoke becoming a significant pollutant; it most likely won't be in terms of particulate matter, but maybe the smoke itself is bad for atmosphere. I don't know. But even if, that's a discussion about environmental impact (and a one that no one is having right now), not about direct health effects.
https://en.wikipedia.org/wiki/Nicotine_poisoning#cite_note-L...
"An accidental ingestion of only 6 mg may be lethal to children. [16]"
So, safe as long as you ignore the dead people?
[0] - http://www.electroniccigaretteconsumerreviews.com/how-much-n...
aka second hand smoke is not limited to other people.
It's only the right thing to do.
That's just obnoxious.
"the default is not dump whatever you want into the air."
Lol. Pass the news to industry. And seriously, with your attitude, you should be living a 100 miles away from the nearest car.