Table 2.
Fluoride content in well water in the 12 cities in Southwest region of KSA.
| Water Source | Code | No. of Samples | Fluoride Content (ppm) | Std. Deviation | ||
|---|---|---|---|---|---|---|
| Min. | Max. | Mean | ||||
| Well Water | C1 | 5 | 1.10 | 3.50 | 2.44 | 0.97 |
| C2 | 5 | 1.30 | 3.80 | 2.24 | 0.99 | |
| C3 | 5 | 1.05 | 3.80 | 2.10 | 1.09 | |
| C4 | 5 | 1.70 | 3.70 | 2.34 | 0.81 | |
| C5 | 5 | 1.50 | 3.20 | 2.12 | 0.66 | |
| C6 | 5 | 1.30 | 2.20 | 2.21 | 0.71 | |
| C7 | 5 | 1.10 | 1.90 | 1.69 | 0.34 | |
| C8 | 5 | 1.75 | 3.10 | 2.33 | 0.63 | |
| C9 | 5 | 1.15 | 2.00 | 1.43 | 0.35 | |
| C10 | 5 | 1.20 | 2.40 | 1.78 | 0.49 | |
| C11 | 5 | 1.10 | 2.60 | 2.08 | 0.63 | |
| C12 | 5 | 0.60 | 1.10 | 0.82 | 0.20 | |
| Average/mean | 1.24 | 2.78 | 1.97 | |||