There are about 600 ingredients in cigarettes and more than 7,000 chemicals in tobacco smoke. Many of these chemicals are poisonous and at least 69 of them cause cancer. The truth is, one cigarette probably has more chemicals than all the stuff you keep in your garage. Let's take a look:
Ammonia is one of the most commonly produced industrial chemicals in the United States, but you probably know it best as a household cleaner—the kind that you wear gloves around and avoid breathing in.
Benzene is found in glues and adhesives—such as rubber cement—as well as car fumes and gasoline exhaust. But according to National Cancer Institute, cigarette smoking accounts for about half of the total U.S. population exposure to this cancer-causing chemical.
Butane is highly flammable and often used as fuel for lighters.
Naphthalene is an ingredient in mothballs, which are basically small balls of pesticide. Naphthalene turns directly from a solid into a toxic vapor, which in the case of mothballs kills insects and may repel animals.