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

AUTHOR AND
AFFILIATION

SACHIN KUMAR
Department of Physics, Meerut College, Meerut, India – 250001
NEERAJ KUMAR
Department of Physics, IFTM University, Moradabad, India – 244102
ANIL KUMAR
Department of Physics, S S (P G ) College, Shahjahanpur, India – 242001
R. B. S. RAWAT
Department of Physics, M S College, Saharanpur, India – 247001

KEYWORDS:

Radon, Solid State Nuclear Track Detector, Thoron, Dosimeter

Issue Date:

June 2018

Pages:

291-300

ISSN:

2319-8044 (Online) – 2231-346X (Print)

Source:

Vol.30 – No.6

PDF

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DOI:

http://dx.doi.org/10.22147/jusps-A/300601

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 18.77 Bq/m3 to 44.95 Bq/m3 and 10.89 Bq/ m3 to 21.20 Bq/m3 respectively while the average value of radon progeny and thoron progeny concentration varies from 2.02mWL to 4.85 mWL and .29 mWL to 0.57 mWL respectively. The observed value of radon, thoron and their progeny concentration inside the dwellings were found to be lower than the ICRP value of 200 Bq/m3 and thus are within safe limits.

Copy the following to cite this Article:

S. Kumar; N. Kumar; A. Kumar; R. B. S. Rawat, “Estimation of inhalation dose due to exposure to radon, thoron and their progeny in the indoor environment of Shahjahanpur, Uttar Pradesh, India”, Journal of Ultra Scientist of Physical Sciences, Volume 30, Issue 6, Page Number 291-300, 2018


Copy the following to cite this URL:

S. Kumar; N. Kumar; A. Kumar; R. B. S. Rawat, “Estimation of inhalation dose due to exposure to radon, thoron and their progeny in the indoor environment of Shahjahanpur, Uttar Pradesh, India”, Journal of Ultra Scientist of Physical Sciences, Volume 30, Issue 6, Page Number 291-300, 2018

Available from: http://www.ultrascientist.org/paper/1475/estimation-of-inhalation-dose-due-to-exposure-to-radon-thoron-and-their-progeny-in-the-indoor-environment-of-shahjahanpur-uttar-pradesh-india


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 18.77 Bq/m3 to 44.95 Bq/m3 and 10.89 Bq/ m3 to 21.20 Bq/m3 respectively while the average value of radon progeny and thoron progeny concentration varies from 2.02mWL to 4.85 mWL and .29 mWL to 0.57 mWL respectively. The observed value of radon, thoron and their progeny concentration inside the dwellings were found to be lower than the ICRP value of 200 Bq/m3 and thus are within safe limits.