Table 2 The XRF data reveal concentrations of U, Th, and K, along with Th/U and Th/K ratios, complemented by precise soil radionuclide activity measurements obtained from HPGe gamma Spectrometry.
From: Investigating the soil surface properties behind elevated natural radiation in Mamuju, Indonesia
No. | Location | XRF | HPGe Gamma Spectrometry | ||||||
|---|---|---|---|---|---|---|---|---|---|
Concentration | Ratio | Soil Activity | |||||||
Total U (ppm) | Total Th (ppm) | Total K (%) | Th/U | Th/K | Ra-226 (Bq/kg) | Th-232 (Bq/kg) | K-40 (Bq/kg) | ||
1 | Ahu Hill | 294.90 | 2610.00 | 0.04 | 8.85 | 73833.10 | 965.55 | 2590.86 | 139 |
2 | Pasabu | 205.10 | 1390.00 | 1.26 | 6.78 | 1101.43 | 650.77 | 1687.57 | 489.93 |
3 | Takandeang, Tkd | 219.30 | 716.20 | 3.88 | 3.27 | 184.68 | 634.72 | 739.61 | 355.06 |
4 | Taloba, Tkd | 578.10 | 3520.00 | 0.15 | 6.09 | 22857.10 | 2552.73 | 4402.47 | 276.46 |
5 | Tabangabanga | 239.00 | 781.60 | 1.73 | 3.27 | 450.75 | 872.95 | 1982.64 | 169.73 |
6 | Rantedoda1 | 367.20 | 2430.00 | 1.70 | 6.62 | 1428.57 | 655.79 | 2444.56 | 538.25 |
7 | Rantedoda2 | 314.40 | 2090.00 | 1.86 | 6.65 | 1121.85 | 266.25 | 1208.16 | 280.18 |
8 | Kamaraang | 320.20 | 889.70 | 2.50 | 2.78 | 356.17 | 784.21 | 845.87 | 482.25 |
9 | Bebanga | 466.70 | 2010.00 | 0.14 | 4.31 | 14671.50 | 645.71 | 2978.53 | 187.27 |
10 | Hulu Ampalas | 319.00 | 473.60 | 8.90 | 1.48 | 53.20 | 554.68 | 766.89 | 1793.42 |
11 | Botteng | 475.00 | 1620.00 | 0.19 | 3.41 | 8437.50 | 1433.68 | 2119.05 | 196.55 |
12 | Ampalas Tujuh | 86.30 | 313.00 | 4.00 | 3.63 | 78.27 | 402.31 | 628.27 | 245.21 |
13 | Ahu | 213.50 | 835.10 | 1.92 | 3.91 | 434.50 | 525.17 | 1205.73 | 724.23 |
14 | Orobatu | 187.60 | 980.70 | 4.11 | 5.23 | 238.38 | 1025.52 | 1220.87 | 1272.45 |
15 | Tampalang | 173.20 | 632.50 | 2.11 | 3.65 | 300.19 | 536.08 | 882.83 | 769.6 |
16 | Dayanginna | 87.90 | 657.20 | 2.56 | 7.48 | 257.02 | 211.8 | 544.75 | 612.77 |
17 | Anusu | 155.90 | 661.30 | 2.66 | 4.24 | 248.33 | 606.28 | 1058.79 | 960.02 |
18 | Bullung | 115.00 | 1110.00 | 2.08 | 9.65 | 533.14 | 164.48 | 1249.56 | 632.31 |
19 | Mekatta | 42.50 | 138.80 | 4.75 | 3.27 | 29.21 | 219.77 | 262.97 | 847.99 |
20 | Uhayloppa | 47.60 | 247.60 | 4.33 | 5.20 | 57.22 | 195.34 | 477.64 | 1063.82 |
21 | Mamuju City | 53.70 | 489.40 | 2.74 | 9.11 | 178.55 | 201 | 550.61 | 961.44 |
