Radon transfer from water to milk

Radon, as naturally occurring radioactive gas, is responsible for ۵۰% of the total background radiations in human. Radon gas is able to enter to human body through eating and drinking. So, measurement of received radiation in the human body is essential. In this study, the presence of radon in milk and its dose was examined. This experiment was conducted using ۱۲ Rayeni goats which have been categorized in a completely randomized design by ۴ treatments and ۳ replication (Treatment A = Radon-containing water + zero antioxidant, Treatment B = Radon-containing water + antioxidant, Treatment C = healthy water + antioxidant, Treatment D = healthy water+ zero antioxidant). The experiment was prolonged for ۶۰ days. During the experiment the goats were milked every day. The samples were transferred to laboratory to determine the milk compounds and properties, as well as to measure its radon level. Presence of radon in milk was detected using Rad۷ device. The averaged radon concentration in milk samples (for treatments A and B) receiving radon was about ۱۲۶ Bq m-۳. There was no significant difference between protein. But there was a significant difference between the percentages of fat, lactose, total antioxidant capacity and the number of somatic cells. Radon did not change pH and Malondialdehyde contents of the treatments. We also determined annual received radon dose per person from drinking milk. It was different among age groups. Newborns were at higher risk of internal radon exposure from contaminated milk. Radon can enter thelivestock milk. According to our findings, with, this radon amount in milk was not higher than the allowable level in valid resources for human health.

Keywords:

Radon , Milk , Antioxidant , Effective Dose