Nonsmokers in automobiles are exposed to significant secondhand smoke

Nonsmokers sitting in an automobile with a smoker for one hour had markers of significantly increased levels of carcinogens and other toxins in their urine, indicating that secondhand smoke in motor vehicles poses a potentially major health risk according to a groundbreaking study led by UC San Francisco researchers. The nonsmoking passengers showed elevated levels of butadiene, acrylonitrile, benzene, methylating agents and ethylene oxide. Read more here.