Sample area code | Number of water samples collected | Sampling area, km20 | Activity, Bq/kg | Radium equivalent activity, (Raeq) in Bq·kg−1 | ||
232Th | 238U | 40K | ||||
A | 4 | 1.00 | 4.32 ± 2.04 | 5.80 ± 1.92 | 276.14 ± 46.70 | 33.24 ± 3.40 |
B | 4 | 1.00 | 5.63 ± 1.86 | 6.78 ± 2.25 | 405.39 ± 84.53 | 46.04 ± 5.52 |
C | 4 | 1.00 | 7.03 ± 2.29 | 6.08 ± 1.23 | 324.42 ± 70.37 | 41.11 ± 4.75 |
D | 4 | 1.00 | 8.42 ± 2.23 | 6.83 ± 1.59 | 287.93 ± 76.28 | 41.04 ± 8.04 |
E | 4 | 1.00 | 10.07 ± 4.31 | 6.75 ± 3.02 | 281.74 ± 119.85 | 42.84 ± 14.55 |
F | 4 | 1.00 | 9.35 ± 5.51 | 8.86 ± 1.60 | 361.70 ± 117.59 | 50.08 ± 18.37 |
G | 4 | 1.00 | 8.96 ± 3.21 | 7.77 ± 1.44 | 455.26 ± 101.45 | 55.64 ± 7.39 |
H | 4 | 1.00 | 6.97 ± 3.65 | 7.89 ± 1.30 | 259.89 ± 54.69 | 37.86 ± 6.61 |
J | 4 | 1.00 | 8.43 ± 0.33 | 6.30 ± 1.82 | 242.56 ± 89.52 | 37.03 ± 7.61 |
K | 4 | 1.00 | 6.84 ± 1.12 | 9.75 ± 5.62 | 287.13 ± 98.99 | 41.64 ± 13.41 |
L | 4 | 1.00 | 6.62 ± 2.61 | 5.93 ± 0.70 | 436.01 ± 40.84 | 48.96 ± 6.08 |
M | 4 | 1.00 | 6.37 ± 0.68 | 5.71 ± 1.16 | 330.39 ± 21.92 | 40.25 ± 1.65 |
N | 4 | 1.00 | 9.70 ± 5.47 | 6.13 ± 0.68 | 308.68 ± 116.39 | 43.76 ± 16.76 |
P | 4 | 1.00 | 2.74 ± 2.59 | 6.07 ± 2.40 | 349.51 ± 70.58 | 36.91 ± 2.73 |
Q | 4 | 1.00 | 9.70 ± 3.70 | 8.51 ± 2.73 | 405.47 ± 155.79 | 53.60 ± 17.31 |
R | 4 | 1.00 | 7.49 ± 2.78 | 8.72 ± 2.26 | 398.65 ± 33.46 | 50.13 ± 6.43 |
S | 4 | 1.00 | 6.71 ± 1.63 | 7.93 ± 0.24 | 330.12 ± 49.75 | 42.94 ± 3.89 |
T | 4 | 1.00 | 10.66 ± 5.89 | 10.53 ± 3.51 | 425.98 ± 131.73 | 58.57 ± 18.03 |
U | 4 | 1.00 | 8.33 ± 3.20 | 7.73 ± 1.75 | 380.98 ± 168.08 | 48.97 ± 16.99 |
V | 4 | 1.00 | 8.96 ± 12.51 | 6.36 ± 3.62 | 440.90 ± 151.62 | 53.12 ± 32.96 |
W | 4 | 1.00 | 6.54 ± 4.26 | 6.85 ± 1.33 | 450.12 ± 52.19 | 50.86 ± 9.57 |
X | 4 | 1.00 | 9.34 ± 5.98 | 9.05 ± 4.68 | 380.08 ± 264.93 | 51.67 ± 29.07 |
Y | 4 | 1.00 | 9.31 ± 5.13 | 11.96 ± 2.81 | 231.27 ± 86.67 | 43.07 ± 11.16 |
Z | 4 | 1.00 | 12.34 ± 3.14 | 8.53 ± 2.09 | 311.59 ± 33.34 | 50.17 ± 5.64 |
a | 2 | 0.50 | 7.70 ± 0.86 | 5.61 ± 1.61 | 438.06 ± 143.71 | 50.34 ± 10.68 |
b | 2 | 0.50 | 9.75 ± 5.96 | 5.54 ± 0.32 | 472.49 ± 57.64 | 55.85 ± 3.77 |
d | 2 | 0.50 | 8.73 ± 4.47 | 4.04 ± 1.05 | 369.76 ± 115.25 | 45.00 ± 1.44 |
e | 2 | 0.50 | 6.98 ± 0.07 | 6.78 ± 1.77 | 404.28 ± 82.71 | 47.89 ± 8.24 |
g | 1 | 0.25 | 9.89 ± 0.00 | 5.75 ± 0.00 | 407.13 ± 0.00 | 51.24 ± 0.00 |
h | 2 | 0.50 | 8.65 ± 0.64 | 8.58 ± 2.57 | 387.28 ± 42.80 | 50.76 ± 6.78 |
j | 2 | 0.50 | 9.83 ± 0.14 | 6.12 ± 2.27 | 372.98 ± 32.05 | 48.89 ± 0.40 |
n | 2 | 0.50 | 6.87 ± 0.69 | 7.61 ± 0.08 | 333.28 ± 32.51 | 43.09 ± 1.59 |
q | 2 | 0.50 | 5.18 ± 0.71 | 6.46 ± 2.55 | 286.89 ± 11.60 | 35.95 ± 4.46 |
r | 2 | 0.50 | 8.54 ± 1.34 | 4.94 ± 1.21 | 324.75 ± 10.59 | 42.15 ± 1.53 |
t | 2 | 0.50 | 8.27 ± 2.07 | 8.78 ± 1.49 | 259.57 ± 128.33 | 40.58 ± 11.35 |
Total | 117 | Average | 8.03 ± 1.91 | 7.23 ± 1.67 | 354.81 ± 67.06 | 46.04 ± 6.28 |