Smoking Radiation?

[Tobacco Smoke as Another Source of Radiation]

Actual cause of the lung cancer ,associated with cigarette smoking, is Radioactivity ??



  Per [Tobacco Smoke | Radiation Protection | US EPA]:

Radioactivity may be one of the key factors in lung cancer among smokers....†.

The tobacco leaves used in making cigarettes contain radioactive material, particularly lead-210 and polonium-210. ...
The radionuclide content of tobacco leaves depends [on fertilizer use]...


"... phosphate fertilizers, favored by the tobacco industry,
contain radium and its decay products (including lead-210 and polonium-210).
When phosphate fertilizer is spread on tobacco fields year after year,
the concentration of lead-210 and polonium-210 in the soil rises... ..."

(more at http://www.epa.gov/radiation/sources/tobacco.html )


...So what about other plants (foods)?

† See http://www.epa.gov/radiation/sources/tobacco.html#footnote



See also:

http://www.epa.gov/radiation/understand/perspective.html

and

http://www.epa.gov/radiation/topics.html.