NATION WIDE Rn AND Rn ATLAS FOR INDIA
نویسندگان
چکیده
Considering the epidemiological effect of radon on human beings, an attempt is made to make a nation-wide atlas of Rn and Rn for India. More than 5000 measurements have been carried out in 1500 dwellings across the country, India. The solid state nuclear track detectors were deployed for the measurement of indoor Rn, Rn and their progeny levels. The mean annual inhalation dose rate due to Rn, Rn and their progeny in the dwellings is found to be 0.97 mSv y (GSD 2.49). It is observed that the major contribution to the indoor inhalation dose is due to Rn and its progeny. However, the contribution due to Rn and its progeny is not trivial as it is about 20% of the total indoor inhalation dose rates. The dependence of indoor Rn levels in dwellings has shown a significant difference between the nature of walls and floorings. The results are discussed in detail.
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