International Journal of Engineering and Information Systems (IJEAIS)   Year: 2019 | Volume: 3 | Issue: 5 | Page No.: 40-43 Radon Flux Density (222Rn) in Residential Premises of the Navoi and Samarkand Region. Ulugbek Abdirakhmonov, Ulugbek Tuhktaev, Shakhboz Khasanov, Shokhrukh Jurakulov, Umrzok Safaev Abstract: This article deals with the problem of radioactive exposure to radon on the population of the Navai and Samarkand region. Studies allow to calculate the average annual effective and equivalent doses to the public and the rate of radon exhalation on various types of finishing materials.