I didn't know about this and was sceptical but it appears to be right and the CDC[1] mentions it, along with lead-210 being a source of radioactive accumulation

I didn't know about this and was sceptical but it appears to be right and the CDC[1] mentions it, along with lead-210 being a source of radioactive accumulation in the lungs. Apparently an information that cigarette manufacturers tried pretty hard to hide[2]... [1]:https://www.cdc.gov/nceh/radiation/smoking.htm https://www.cdc.gov/nceh/radiation/smoking.htm [2]:https://news.cancerresearchuk.org/2008/08/29/radioactive-polonium-in-cigarette-smoke/ https://news.cancerresearchuk.org/2008/08/29/radioactive-pol...