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Abstract

The indoor radon level in terms of potential alpha energy exposure (PAEE) has been measured in several dwellings of Aizawl town (23.36 N, 93.00 E) situated in north-eastern India. Films of LR-115 (type II) solid state nuclear track detector (SSNTD) were used in bare mode in the present measurements. The PAEE values in most of the dwellings are lower than the action level pre scribed by the International Commission on Radiological Protection (ICRP- 65). The geometrical mean value of the PAEE from the present set of measure ments has been found to be 7.5 ± 2.5 mWL. It is further observed that ventila tion and type of building construction materials have a considerable influence on the level of indoor radon.

Keywords

Indoor radon Solid-state nuclear track detector Passive detector LR-115 Potential alpha energy exposure

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Measurement of Indoor Radon in Some Dwellings in Aizawl (India)

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