Tuesday, March 27, 2012

radioactivity levels in foods

Every food has some small amount of radioactivity in it. The common radionuclides in food are potassium 40 (40K), radium 226 (226Ra) and uranium 238 (238U) and the associated progeny. Here is a table of some of the common foods and their levels of 40K and 226Ra.
Natural Radioactivity in Food
Food40K
pCi/kg
226Ra
pCi/kg
Banana3,5201
Brazil Nuts5,6001,000-7,000
Carrot3,4000.6-2
White Potatoes3,4001-2.5
Beer390---
Red Meat3,0000.5
Lima Bean
raw
4,6402-5
Drinking water---0-0.17

No comments:

Post a Comment