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Secondhand Smoke

Secondhand Smoke Exposure Facts

Secondhand smoke is tobacco smoke that is breathed in by someone who is not smoking themselves. It occurs when a person is in the vicinity of a person who is smoking. Secondhand smoke is a mixture of the smoke from the tobacco product itself (termed sidestream smoke) and exhaled smoke from the smoker (known as mainstream smoke).

The same chemicals, toxins, and cancer-causing substances are present in secondhand smoke as in active smoking; the person who inhales secondhand smoke is exposed to the same toxins as the smoker. Secondhand smoke is known to carry definite health risks for both adults and children. An increased risk of lung cancer is just one of the hazardous health effects of secondhand smoke.

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