No | Tehsils | No. of sample | As concentration (ng∙ml−1) | ≤10 (% samples) | >10 (% samples) | Average value (ng∙ml−1) | SPPS cases (%) |
1 | Layyah | 250 | 0-150 | 86 | 14 | 8.37 | 50 |
2 | Koror | 235 | 0-100 | 87.7 | 12.3 | 8.94 | 25 |
3 | Chobara | 155 | 0-25 | 98 | 2 | 1.67 | 39 |