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Vol -  9, Issue- 1 ,         Page(s) : 15 - 22  (2019 ) DOI :


Radon is a radioactive element which can cause lung cancer; this research is effective to understand the radon levels at various places of area under study. Indoor air radon concentration is measured in Hamirpur district of Himachal Pradesh using LR- 115 type II detectors. In this research paper absorbed dose, equivalent dose, annual effective dose (to lung) for indoor air are calculated. Indoor radon concentration has been found to vary in the range from 35 to 358 Bq/m-3, annual absorbed dose found to varied from 0.57 to 4.52 mSv/yr and annual equivalent dose varied from 8.82 to 90mSv/yr and annual effective dose (to lungs) varied from 1.06 to 10.84 mSv/yr. The work is undertaken for health risk assessments due to presence of radon in the dwellings under study area.

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