Environmental tobacco smoke pollutes the air and has invited public concern as an environmental and a health hazard. In the 1980s, health researchers Joseph DiFranza and Robert Lew showed approximately 70 percent of children in the U.S. were exposed to secondhand smoke in their homes by at least one adult smoker. A list of carcinogens. According to health expert Allen Brandt, this has subjected public smoking to a range of federal regulatory requirements. Thus, the effects of smoking are seen as far-reaching.
Some people have parents who smoke.
Some have best friends who smoke. Some had grandparents who smoked. Some are smokers themselves. Many people have made an effort to educate the public about the effects of smoking, if not to clean up the air and make public places a little more pleasant, than to save a few lives. For those who smoke, it is very easy to let important information concerning consequences of smoking go in one ear and out the other.