American cigarettes contain more carcinogens
by Todd Neale
Levels of tobacco-related nitrosamines — known carcinogens produced when curing tobacco — are higher in popular brands of American cigarettes compared with those from other countries, potentially leading to more cases of lung cancer, researchers found.
The study of 126 smokers in four countries found that exposure to one carcinogen — 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) — was highest among those from the U.S. compared with smokers from England, Canada, and Australia, …
American cigarettes contain more carcinogens

















