Syobon wrote:
You are missing the point. I'm not saying that cars should be banned for exhaust fumes, I'm saying that smoking on the streets has negligible impact on the health of passerbys. Compare the volume of exhaust fumes released in an average city to the volume of smoke released by cigarettes. Do you honestly think the latter will make any significant difference on the air quality?
!0 billion a year in deaths and medical expenses for nonsmokers exposed to secondhand smoke. (CDC)
Furthermore,
http://www.epa.gov/smokefre/healtheffects.html[*]ETS (environmental tobaccco smoke or secondhand smoke) is a human lung carcinogen, responsible for approximately
3,000 lung cancer deaths annually in U.S. nonsmokers. (JUST lung cancer.)
[*]ETS exposure increases the risk of lower respiratory tract infections such as bronchitis and pneumonia. EPA estimates that between 150,000 and 300,000 of these cases annually in infants and young children up to 18 months of age are attributable to exposure to ETS. Of these, between 7,500 and 15,000 will result in hospitalization.
[*]ETS exposure increases the prevalence of fluid in the middle ear, a sign of chronic middle ear disease.
[*]ETS exposure in children irritates the upper respiratory tract and is associated with a small but significant reduction in lung function.
[*]ETS exposure is a risk factor for new cases of asthma in children who have not previously displayed symptoms.
That page lists serious scientific and medical reports from several different scholarly and government organizations who all contribute their findings to the information listed there, and links to several more. All about SECONDHAND smoke.
As for asthma:

8 percent at minimum is the supported figure-- or in other words, 1 in 12, slightly less than 10 percent. Yes.