Table 3.
Comparison of Activity Concentration of 232Th, 238U and 40K in soil samples of Thanjavur and other parts of India
| Location | Activity concentration (Bq/kg) | Reference | ||
|---|---|---|---|---|
| 232Th | 238U | 40K | ||
| Thanjavur, South India | 18.6 - 76.6 (45.7) | 7.3 - 24.7 (15.9) | 38 - 417 (189) | Present study |
| Kalpakkam, South India | 15 - 776 (119) | 5 - 71 (16) | 200 - 854 (406) | Kannan et al.[17] |
| Kudankulum, South India | 334.2 | - | 348.49 | Brahmanandhan et al.[18] |
| Gudalore, South India | 19 - 272 | 17 - 62 | 78 - 596 | Selvasekara Pandian et al.[20] |
| Himachal Pradesh, India | 52.8-105.81 (82.2) | - | 95.3 - 160.3 (135.7) | Rani and Singh[5] |
| India Average | 18.3 | 14.8 | – | Mishra and Sadasivaxm[10] |
| World Range | 7 - 50 (25) | 10 - 50 (25) | 100 - 700 (370) | UNSCEAR[19] |