Modeling of the ambient radiation dose level by using passive moss biomonitoring in Macedonia

In 2010, the ambient radiation dose level has been measured in situ for the first time at the same sampling sites where the moss samples have been collected in order to determine and describe the air pollution in the Republic of Macedonia. It has been found that the ambient dose levels are in the interval from 53 nSv/h to 340 nSv/h. A model for the calculation of radiation dose rate based on measured value and the content of U and Th (elements that have only radioactive isotopes), as well as Ba, K, La, Rb and Sr (elements that have both radioactive and stable isotopes) in moss samples, and the measured values of the radiation dose rate is proposed.