3b238e271973795cd623f1 20250604164729573 funda:funda fundamentalJournals@gmail.com WEB-FORM International Journal of Fundamental Physical Sciences IJFPS 22318186 09 2012 2 3 Centre for Environmental & Radiological Sciences, Department of Physics, The Cochin College, Kochi-2. Kerala, India Dhanya Balakrishnan A G Umadevi PG and Research Department of Chemistry, Urummu Dhanalakshmi College, Tiruchirapalli 620019, India Jose.P. Abraham Centre for Environmental & Radiological Sciences, Department of Physics, The Cochin College, Kochi-2. Kerala, India M. Rajagopalan Centre for Environmental & Radiological Sciences, Department of Physics, The Cochin College, Kochi-2. Kerala, India J Jojo Centre for Advanced Research in Physical Science, Department of Physics, Fatima Mata National College, Kollam, Kerala, India The study of natural radiation exposure is of importance because it accounts for the largest contribution to the collective dose for the world population from all sources. Extent of exposure to natural radiation depends on the occupation, type of dwelling, location of habitation, and lifestyle of the population. All building materials contain various amounts of natural radionuclides as they are derived from the rocks and soils, which always contain natural radionuclides of Uranium (238). 09 2012 41 43 10.14331/ijfps.2012.330034 https://www.fundamentaljournals.com/index.php/ijfps/article/view/35