Estimation of inhalation dose due to exposure to radon, thoron and their progeny in the indoor environment of Shahjahanpur, Uttar Pradesh, India

Abstract

Radon and thoron is a radioactive gas that emanates from rocks and soils and tends to concentrate in an indoor environment. Soil gas infiltration is identified as the most important source of residential radon. Other sources, including building materials and water extracted from wells, are also important in some circumstances. Radon is one of the major contributors to the ionizing radiation dose received by the general population. The dose due to radon and thoron are mainly delivered by their decay products which tend to get deposited in the respiratory organs of humans during breathing. In this study the measurement of radon, thoron and their daughter products concentration were carried out in the residential houses of Shahjahanpur, Uttar Pradesh, India using solid state nuclear track detector (SSNTD). The measurements were made in residential houses in the indoor environment of Shahjahanpur, using a twin chamber radon dosimeter. In the present study, it is found that the average value of radon and thoron concentration varies from 18.

The Study Of Radon/Thoron And Progeny Concentration In The District Haridwar, Uttarakhand, India Using SSNTDS

“…Radon and granite stone strands produce black cement (Folkerts et al, 1984) or have uranium 238 and thorium 232 concentrations (Ramachandran et al, 1989;Turhan et al, 2012) [6][7][8][9][10][11][12][13][14][15]. The α radiation gas emitted by radon 222 and its derivatives (218Po and 214Po), as well as its chain length, can damage DNA in the lung's cells and in the end, cause cancer of the lung in people (Taylor-Lang et al, 2012) [16][17][18][19][20][21][22][23][24]. The World Health Organization has issued a statement of confirmation of the significant link between lung cancer and the prevalence of radon in indoor air.…”