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Fluoride level of water samples
| Water sample | Number of samples (2 samples/time point) | Fluoride level (ppm) |
|---|---|---|
| Water agency (source before processing) | 4 | <0.065 |
| Public water tanks (delivery site) | 4 | <0.065 |
| Zaid Al Hussain Company (source after processing) | 4 | <0.065 |
| Al Amer Company (source after processing) | 4 | <0.065 |
| Al Saeedi Company (source after processing) | 4 | <0.065 |
| Al-Kawthar Company (source after processing) | 4 | <0.065 |
