It may be a nuisance but passive smoking has negligible effects on public health. http://www.forbes.com/sites/danielfisher/2013/12/12/study-finds-no-link-betwe

It may be a nuisance but passive smoking has negligible effects on public health. http://www.forbes.com/sites/danielfisher/2013/12/12/study-finds-no-link-between-secondhand-smoke-and-cancer/#66b03ef9623f http://www.forbes.com/sites/danielfisher/2013/12/12/study-fi...