This document discusses several harmful chemicals found in cigarette smoke such as tar, nicotine, carbon monoxide, lead, butane, cadmium, and DDT. It notes that smoking kills many people each year and causes cancer and other serious illnesses. The document encourages smokers to quit for their health and the health of others around them who may be affected by secondhand smoke.

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11. Lead)
(Butane)
Carbon Monoxide

12. Cadmium
D.D.T