Take the 2-minute tour ×
Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It's 100% free, no registration required.

Obviously it's better than nothing, I live in a city, less polluted than the leaders like Hanoï, Shangai, etc.., but strangely, I already expressed it on this site, I have a sort of disproportionate fear of other pollutants such as cigarettes smokes. I would be interested to know which of car exhaust and a smoker smoke, at comparable concentration, is more 'noxious'.

In my case, during the day, bike or walking outside, I really feel more sporadically tobacco smoke (40%+ smokers in my area), than other pollutants. And like I said I still can't get over the feeling than the first is more noxious than the second.

So I would like to understand once for all how does second-hand smoke compare to car pollution? Do the particles have same size properties (from 0.3 to 2.5 microns concerning car pollutants PM0.3-PM2.5 which are (mostly) retained by common pollution masks)? So could those masks work as well for second-hand pollution (marginal for most people, but still there)?

share|improve this question
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.