Levels of Pb-210 and Po-210 in the food chain cow-milk-cheese

Kretanje prirodnih radionuklida iz niza urana u prehrambenom lancu nedovoljno je ispitano uopće, a kod nas gotovo nije niti načeto. Ispitivanja su vršena na teritoriji BiH, kako bi se moglo predvidjeti kretanje Pb-210 i Po-210 u prehrambenom lancu na područjima s povišenim prirodnim fonom.The levels of natural radioactivity in the food chain have hardly been touched. These levels were investigated in some parts of Bosnia. The levels of Pb-210 in beef vary from 0,1-6.2 pCi/kg and Po-210 from 0-5.2 pCi/kg. The radioactivity in milk is lower so that Po-210 lies between 0.15-2.45 pCi/l and Pb-210 from 0.20-1.90 pCi/l. The highest radioactivity was determined in cheese i.e. 60 pCi/kg of pb-210. Po-210 is as low as 1.30-3.75 pCi/kg of cheese