cigarettes contain how many known carcinogens Smoking tobacco is hazardous to our health. Tobacco has at least 70 cancer-causing chemicals that can cause heart diseases, lung diseases, & other serious health problems. Also, it is known that Cigarettes contain thousands of chemicals—over

Cigarettes contain thousands of chemicalsover 7,000 have been identified many of which are toxic, and at least 70 are known to cause cancer. When a cigarette burns, these chemicals are inhaled deep Active Smoking COSH Compound Interest: What do the IARC's carcinogen classifications actually mean? Carcinogens in Cigarette Smoke Cigarette smoke contains thousands of chemicals, many of which are toxic and harmful to the human body. Here's a detailed breakdown of some of the most dangerous constituents and their effects: 1.

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