Variation of total beta activity in air by years on Obiliq

Abstract

At the Institute of Occupational Medicine, respectively Radiation Protection Service since 1975 to 1989 there was radioactive monitoring system of environment air and fallout, also are done measurements activity of 137Cs and 90Sr in foods, waters and soils. In this paper we have presented the results of measurements of total beta activity in air of Obiliq town in Kosovo.The highest annual average of total beta activity was recorded in 1986, it is 281.03 mBq m-3, and it belongs to the year when the Chernobyl nuclear accident occured. While the average daily value recorded was 2,06 mBq m-3. Continuous monitoring during the observed period showed that the activity concentrations of total beta activity of the radioactive matter in surface of Obiliq air, never exceeded allowed values.