Impact of radon and thoron levels on technosphere objects in the total urban environment

Abstract

Thoron and radon exhalation from earth's crust is the most important source of atmospheric radioactive gases, along with its daughter products present in the soil is one of the major contributors to the external gamma dose in the atmosphere, since its distribution in the earth's crust is important for controlling the production of 220Rn and 222Rn. In this study trace amount of 232Th, 238U permeate almost all soils and rocks, in part due to the influence of buildings from which radioactive gas can emanate over geological time scales. Results obtained from this study indicate that the region has background radioactivity levels within the natural limits and a detailed discussion of the results is presented in the work.