Environmental Tobacco Smoke

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…to develop lung cancer than those married to non-smokers (LeMaistre 1). According to the Environmental Protection Agency a thirty percent risk is only a small relative risk. The Environmental Protection Agency released its report stating that environmental tobacco smoke is a human lung carcinogen, responsible for approximately three thousand lung cancer deaths annually in American non-smokers. Environmental tobacco smoke has been classified as a Group A carcinogen, the highest ranking under the EPA's carcinogen assessment guidelines.