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The concentration of 238U, 232Th and 40K in sediment samples collected from Thazhankudato Kodiyakkarai along the east coast of Tamil Nadu, India was measured using γ-spectrometry. Measured mean activity concentrations are 3.3, 40.45 and 389.28 Bq kg−1 for 238U, 232Th and 40K, respectively. The average activity concentration of 232Th is slightly higher than the world average value. The radiation hazards...
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