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Comparison of various chlorine-based oxidizers showing standard reduction potential, available chlorine, and deactivation time for 1-log reduction of Giardia cysts at 25 °C. Adapted from [90,91].
| Oxidizer | E° (V) | Available Chlorine (%) | pH | Deactivation Time (min) |
|---|---|---|---|---|
| Chlorine Dioxide | +0.95 | 263 | 6–9 | 3.7 |
| Hypochlorous Acid | +1.49 | 135.2 | 6 | 10 |
| Hypochlorous Acid | +1.49 | 135.2 | 7 | 14 |
| Hypochlorite Ion | +0.94 | 139 | 8 | 20 |
| Hypochlorite Ion | +0.94 | 139 | 9 | 29 |
| Monochloramine | +1.40 | 137.9 | 6–9 | 250 |
