They're also grown with high phosphate fertilizers which produce a lot of decay products ending up in Po-210. THEN they aren't washed, and THEN they're dried under gas heaters which promote the formation of Tobacco-Specific Nitrosamines, which are incredibly carcinogenic.
One of the many reasons why, even though smoking anything is not great for your health, smoking tobacco is particularly harmful.
One of the many reasons why, even though smoking anything is not great for your health, smoking tobacco is particularly harmful.