Don't know if this has been posted before, I came across it yesterday in this article.
http://www.oasas.state.ny.us/admed/documents/TobaccoMyths.pdf
MYTH 2: Nicotine is carcinogenic.
TRUTH[FONT=Arial,Arial][FONT=Arial,Arial]: Nicotine has not been proven to cause cancer. There are more than 4,000 other chemicals in cigarette smoke, many of which are known to cause cancer, such as the polycyclic aromatic hydrocarbons and the nitrosamines. Cigarettes deliver high doses of radiation to the user, doses so high that there is more natural radiation in cigarettes than in the Chernobyl fallout, the worst nuclear power plant accident in history (the amount of radioactive material left on plants by Chernobyl pales in comparison with the radium and polonium found naturally in tobacco).
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http://www.oasas.state.ny.us/admed/documents/TobaccoMyths.pdf
MYTH 2: Nicotine is carcinogenic.
TRUTH[FONT=Arial,Arial][FONT=Arial,Arial]: Nicotine has not been proven to cause cancer. There are more than 4,000 other chemicals in cigarette smoke, many of which are known to cause cancer, such as the polycyclic aromatic hydrocarbons and the nitrosamines. Cigarettes deliver high doses of radiation to the user, doses so high that there is more natural radiation in cigarettes than in the Chernobyl fallout, the worst nuclear power plant accident in history (the amount of radioactive material left on plants by Chernobyl pales in comparison with the radium and polonium found naturally in tobacco).
- Constantin Papastefanou found that tobacco plants contain up to 1,000 times more radioactive radium and polonium than the radioactive cesium fallout from Chernobyl left on plants.
- "Many scientists believe that cancer deaths among smokers are due to the radioactive content of tobacco leaves and not to nicotine and tar," according to Papastefanou, a researcher at the Atomic and Nuclear Physics Laboratory at the Aristotle University of Thessaloniki.
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