РЕЗУЛЬТАТИ ЛВЛ/ВИМІРЮВАНЬ, ПРОВЕДЕНИХ НА РАДІОАКТИВНО ЗАБРУДНЕНИХ ТЕРИТОРІЯХ УКРАЇНИ У 1986/2014 рр. (РЕВІЗІЯ ТА АНАЛІЗ)

Objective: revision, analysis, and significant improvement of quality of the database of WBC measurements made in 1986-2014 at radioactively contaminated territories of Ukraine by the use of renewal of informational gaps and improvement of the model for assessment of internal exposure doses. Materials and methods. Inthe period from 1986 to 2014 experts of the Whole Body Counters Laboratory of NRCRM accumulated about 1.5 million results of WBC measurementsof radio-cesium incorporated in the body of persons residing at the territories which are radioactively contaminated due to Chornobyl accident. Most of measurements (~64%) were made during the first 15 years after the accident. The most of measurements were made in Kyiv (~23%), Zhytomyr (~36%), Rivne (~20%) and Chernihiv (~5%) Oblasts. Works on revision of database of WBC measurements included: transformation of data saved in paper format into electronic form, checking for correctness and correspondence of information, renewal of lacking information at the fields of database, improvement of the model for evaluation of internal exposure doses by the data of WBC measurements. In the model for evaluation of revised doses, it is assumed uniform content of radio-cesium during a year. Reference values are used of metabolism parameters and anthropometric human parameters recommended in publications of ICRP. Results. Revised doses have been reconstructed for 1,386,585 records of data base of WBC measurements that fit specially elaborated criterions for estimation of quality of results. Among them 604,215 records are WBC measurements of children and adolescents younger than 18, and 782,370 records correspond to adult inhabitants of Ukraine, most of which reside in Zhytomyr, Kyiv, Rivne and Chenihiv Oblasts. Conclusions. Obtained results serve as a ground for further works on improvement of models for evaluation of passport doses and individualized exposure doses of subjects registered in Ukrainian State Register - of persons that affected due to Chornobyl accident. Evaluated doses can be used for epidemiological, clinical and other research. [ABSTRACT FROM AUTHOR]