The measurements of radon concentrations in drinking water and

Radon 222 is a natural radioactive element with a half-life of 3.8 days. It is odorless and colorless as well as water-soluble. Consuming waters which contain high concentrations of 222Rn would increase the effective dose received by different age groups. It would also be followed by an increased prevalence of cancer. In this research, 72 samples of the most commonly used bottled water in Bandar Abbas were collected in 3 consecutive months, May, June and July of 2013. 222Rn concentration was measured by means of a radon-meter model RTM166-2 made. The effective dose received by the 4 age groups, male and female adults as well as children and infants was estimated using the equation proposed by UNSCEAR. The results revealed that the mean and range of 222Rn concentration in bottled waters were 641±9 Bq/m3 and 0-901 Bq/m3, respectively. The mean concentration of 222Rn in the well-known trademarks followed this BW4> BW2> BW8 > BW1> BW6> BW3> BW5> BW7. The annually received effective dose of 222Rn from the most commonly used trademarks of bottled water in Bandar Abbas was lower than the standard limit (0.1 mSv/y) in all age groups.