Page contains information on extended exposures in multiple locations
The Wikipedia website has an ongoing list of all the current smoking bans in effect in the United States. Do the potential levels of secondhand smoke in the banned locations justify the ban? You can simulate indoor levels of secondhand smoke using some of the tools on this website.
The founder of the SimSmoke.Org website is now contributing to a new website TobaccoSmoke.Org, which aims to disseminate scientific information on exposure to secondhand smoke to the public. The new website contains booklets and briefings on published exposure measurements in cars, homes, the outdoors, and other locations.