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Secondhand smoke is a mixture of the smoke that comes from the burning end of a cigarette, cigar, or pipe, and the smoke breathed out by the smoker. It contains more than 7,000 chemicals. Hundreds of those chemicals are toxic and about 70 can cause cancer.
Health effects of secondhand smoke include
There is no safe amount of secondhand smoke. Even low levels of it can be harmful. The only way to fully protect nonsmokers from secondhand smoke is not to allow smoking indoors.
Centers for Disease Control and Prevention
|Definition (NCI_NCI-GLOSS)||Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers. Inhaling secondhand smoke is called involuntary or passive smoking.|
|Definition (NCI)||Smoke that is emitted from burning tobacco, including cigarette, pipe and cigar, and from tobacco smoke exhaled by smokers. Environmental tobacco smoke consists of a huge variety of chemicals that are produced during the burning of tobacco. Among them are known or suspected toxicants, carcinogens and respiratory irritants, including nicotine, ammonia, formaldehyde, sulfur dioxide, acrolein, hydrogen cyanide, phenol, nitrogen oxide, polycyclic aromatic hydrocarbons, N-Nitrosamines and radionuclides. Environmental tobacco smoke has numerous adverse health effects, is mutagenic and is a known human carcinogen that is associated with an increased risk of developing lung cancer. (NCI05)|
|Concepts||Hazardous or Poisonous Substance (T131)|
|English||second hand smoke, environmental tobacco smoke, secondhand smoking, second hand smoking, secondhand smoke, secondhand smokes, environmental smoke tobacco, Environmental tobacco smoke, Secondhand Smoke, ETS, Second Hand Smoke, Environmental Tobacco Smoke|