Table 4.
The health risk evaluation of heavy metals via drinking water consumption in two studied villages.
| Type | Carcinogenic Risk | Non-Carcinogenic Risk | The Total Health Risk | |||
|---|---|---|---|---|---|---|
| Cd | As | Pb | Hg | Zn | ||
| Tap water | 1.50 × 10−9 | 3.70 × 10−9 | 0. 88 × 10−12 | 0.49 × 10−12 | 0.41 × 10−13 | 5.20 × 10−9 |
| Barreled water | 1.50 × 10−9 | 3.70 × 10−9 | 0. 88 × 10−12 | 0.49 × 10−12 | 0.49 × 10−13 | 5.20 × 10−9 |
| Open wells | 0.16 × 10−6 | 0.92 × 10−5 | 0.06 × 10−9 | 0.32 × 10−9 | 0. 11 × 10−12 | 0.94 × 10−5 |
| Hand-pressed wells | 1.59 × 10−6 | 3.46 × 10−5 | 3.71 × 10−9 | 0.38 × 10−9 | 0. 13 × 10−12 | 3.62 × 10−5 |
| Spring water | 1.50 × 10−9 | 3.70 × 10−9 | 0. 88 × 10−12 | 0.25 × 10−9 | 0.84 × 10−13 | 5.20 × 10−9 |