Site Sample no. Ra-226 Bq/kg Th-232 Bq/kg K-40 Bq/kg
A 1* 348.27 54.00 237.88
6 65.46 7.92 403.77
10* 398.66 75.70 273.56
13 33.38 6.07 583.12
15 75.27 9.10 464.34
18 20.74 14.89 388.75
B 3 35.07 8.93 380.62
4 29.02 5.28 507.06
5 18.65 10.76 316.13
9 18.03 12.95 338.04
C 2 53.11 10.15 244.14
7 32.48 8.24 347.43
8 30.13 9.26 494.54
11 61.07 11.67 280.76
12 40.34 10.27 307.31
14 21.45 12.37 363.55
16 37.35 9.48 399.54
17 34.65 10.65 568.72
  MAX 398.66 75.70 583.12
MIN 18.03 5.28 237.88
*Samples collected from anomalous points of site "A "
Table 4: Activity concentrations of Ra-226, Th-232 and K-40 Bq/kg for the soil samples in the sites (A, B and C).