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Table 3

Radon activity and radon exhalation rate in Cauvery River sediment samples

Sampling locationEffective radium content CRa (mBq kg−1)Radon surface exhalation ES (mBq m−1 h−1)Radon mass exhalation EM (mBq kg−1 h−1)Radon activity (Bq m−3)
K1 95.8 ± 7.1 235.5 ± 36.2 87.3 ± 13.4 97.6 ± 15.0 
K2 136.1 ± 8.9 334.8 ± 43.2 124.2 ± 16.0 138.9 ± 17.9 
K3 68.0 ± 6.0 167.4 ± 30.5 62.1 ± 11.3 69.5 ± 12.6 
K4 49.9 ± 5.1 122.7 ± 26.1 45.5 ± 9.7 50.9 ± 10.8 
K5 85.3 ± 6.7 209.9 ± 34.2 77.8 ± 12.6 87.0 ± 14.2 
K6 53.1 ± 5.3 130.6 ± 26.9 48.4 ± 10.0 54.2 ± 11.2 
K7 97.1 ± 7.1 238.8 ± 36.5 88.6 ± 13.5 99.1 ± 15.1 
K8 54.0 ± 5.3 132.8 ± 27.2 49.2 ± 10.1 55.1 ± 11.3 
K9 364.9 ± 13.9 897.3 ± 70.7 332.9 ± 26.2 372.2 ± 29.3 
K10 192.9 ± 10.1 474.4 ± 51.4 176.0 ± 19.0 196.7 ± 21.3 
K11 83.9 ± 6.6 206.4 ± 33.9 76.6 ± 12.5 85.6 ± 14.1 
K12 108.9 ± 7.5 267.8 ± 38.6 99.4 ± 14.3 111.1 ± 16.0 
K13 272.3 ± 12.1 669.7 ± 61.1 248.5 ± 22.6 277.8 ± 25.3 
K14 199.7 ± 10.2 491.1 ± 52.3 182.3 ± 19.4 203.7 ± 21.7 
Sampling locationEffective radium content CRa (mBq kg−1)Radon surface exhalation ES (mBq m−1 h−1)Radon mass exhalation EM (mBq kg−1 h−1)Radon activity (Bq m−3)
K1 95.8 ± 7.1 235.5 ± 36.2 87.3 ± 13.4 97.6 ± 15.0 
K2 136.1 ± 8.9 334.8 ± 43.2 124.2 ± 16.0 138.9 ± 17.9 
K3 68.0 ± 6.0 167.4 ± 30.5 62.1 ± 11.3 69.5 ± 12.6 
K4 49.9 ± 5.1 122.7 ± 26.1 45.5 ± 9.7 50.9 ± 10.8 
K5 85.3 ± 6.7 209.9 ± 34.2 77.8 ± 12.6 87.0 ± 14.2 
K6 53.1 ± 5.3 130.6 ± 26.9 48.4 ± 10.0 54.2 ± 11.2 
K7 97.1 ± 7.1 238.8 ± 36.5 88.6 ± 13.5 99.1 ± 15.1 
K8 54.0 ± 5.3 132.8 ± 27.2 49.2 ± 10.1 55.1 ± 11.3 
K9 364.9 ± 13.9 897.3 ± 70.7 332.9 ± 26.2 372.2 ± 29.3 
K10 192.9 ± 10.1 474.4 ± 51.4 176.0 ± 19.0 196.7 ± 21.3 
K11 83.9 ± 6.6 206.4 ± 33.9 76.6 ± 12.5 85.6 ± 14.1 
K12 108.9 ± 7.5 267.8 ± 38.6 99.4 ± 14.3 111.1 ± 16.0 
K13 272.3 ± 12.1 669.7 ± 61.1 248.5 ± 22.6 277.8 ± 25.3 
K14 199.7 ± 10.2 491.1 ± 52.3 182.3 ± 19.4 203.7 ± 21.7 
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