| Arsenic level (mg/L) | |||||
---|---|---|---|---|---|---|
 | < 0.04 | 0.05-0.08 | 0.09-0.16 | 0.17-0.32 | 0.33-0.64 | > 0.64 |
Average % of wells in each township | 91.0 | 2.8 | 3.0 | 1.7 | 1.0 | 0.6 |
Estimated populationa | Â | Â | Â | Â | Â | Â |
Males | 5 605 000 | 169 000 | 159 000 | 84 000 | 47 000 | 25 000 |
Females | 5 144 000 | 156 000 | 147 000 | 77 000 | 43 000 | 23 000 |
Total | 10 749 000 | 326 000 | 305 000 | 162 000 | 90 000 | 48 000 |