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IJPAP Vol.45(11) [November 2007] >


Title: Study of radon and its progeny levels dwellings of Thankassery, Kerala
Authors: Kumar, Rajesh
Keywords: Indoor radon
Solid State Nuclear Track detector
Etching
Alpha tracks
Issue Date: Nov-2007
Publisher: CSIR
IPC CodeG01T
Abstract: Radon monitoring has become a global phenomenon due to its health hazard effects on population. ²²²Rn and its radioactive daughters present in the environment results into the largest contribution to the average effective natural radiation dose received by human beings. Indoor ²²²Rn exposure to the population depends in a complex way on the characteristics of the soil, the building structure, meteorology, ventilation conditions and occupants behaviour. LR-115 type II Solid State Nuclear Track Detectors (SSNTDs) have been used for the measurements of indoor radon concentration in 24 rooms in some in dwellings situated in Thankassery town along the south west coast of Kerala to carry out the assessment of the variability of expected radiation exposure of the population due to radon and its progeny. The town is situated near the high background area of Kerala. Radon concentrations are found to vary from 44.3 to 373.3 Bqm⁻³ with an average of (144.7 ± 61.5) Bqm⁻³ whereas the annual effective dose equivalents vary from 1.7 to 14.2 mSv with an average of (5.5 ± 2.3) mSv.
Page(s): 877-879
ISSN: 0019-5596
Source:IJPAP Vol.45(11) [November 2007]

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