title: [The radiation background and hygienic assessment of external irradiation doses of population in some mountainous regions of Georgia].
abstract: The radioecological situation of Mtskheta-Mtianeti region of Georgia has been studied. Doses from external irradiation were determined and estimated. The average value of radiation background (RB) of open areas in Mtskheta-Mtianeti region accounts 84.6 nGy/h, which is nearly equal to the average values in the countries of western Europe. This shows that investigated territories have high natural radiation background, which considering the geographical position and geophysical situation of Georgia is normal. The average value of radiation background of buildings in investigated territories accounts 120.4 nGy/h, which is little more than worldwide average value. The average annual dose from external irradiation (without radon component) for population of Mtskheta-Mtianeti region accounts 0.99 mZv/y, which is slightly more than worldwide average value. Since approximately 2/3 of effective equivalent dose comes from internal radiation and 1/3--from external radiation, it's reasonable to suppose that the radiation load of population of Mtskheta-Mtianeti region is significant and requires implementation of radiation dose reduction measures.
authors.forename: I E
authors.initials: IE
authors.lastname: Kugoti
authors.forename: N R
authors.initials: NR
authors.lastname: Vepkhvadze
authors.forename: N A
authors.initials: NA
authors.lastname: Kiladze
mesh_terms: D001417:Background Radiation; D005846:Georgia (Republic) / Q000453:epidemiology; D006801:Humans; D006920:Hygiene; D011829:Radiation Dosage