Terrestrial gamma radiation dose rate measurement has been conducted around Kampung Sungai Durian (Kg. Sg.Durian), Kinta District, Malaysia. The mean value of outdoor terrestrial gamma radiation (TGR) dose rate and indoor inthe area are 458 nGy h-1 and 286 nGy h-1, respectively. It causes fatal cancer risk of about 9.90 x 10-5 per year to eachindividual. The activity concentrations of 238U, 232Th and 40K in soil samples were measured by gamma spectrometry. Itranged from 32 Bq kg-1 to 554 Bq kg-1, 64 Bq kg-1 to 1 806 Bq kg-1 and 21 Bq kg-1 to 2 522 Bq kg-1, respectively.
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Ramli et al. (2009) studied this question.
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