Table 10.
Efficacy of ozone on Legionella pneumophila, viruses and various protozoa.
| Organism | Temp (°C) | pH | CT 99% (mg min/L) | Ref. |
|---|---|---|---|---|
| Giardia lamblia | 25 | 6–9 | 0.48 * | [85] |
| Giardia lamblia | 20 | 6–9 | 0.72 * | [85] |
| Giardia lamblia | 15 | 6–9 | 0.95 * | [85] |
| Giardia lamblia | 10 | 6–9 | 1.4 * | [85] |
| Naegleria gruberi (NEG) | 25 | 7 | 1.3 | [99] |
| Naegleria gruberi (NEG) | 25 | 7 | <1.6 | [100] |
| Naegleria gruberi (1518/1d) | 25 | 7 | 1.6 | [100] |
| Naegleria gruberi (Echirolles) | 25 | 7 | <1.6 | [100] |
| Naegleria spp. (MO5; C110; An24) | 25 | 7 | <1.6 | [100] |
| Naegleria fowleri | 25 | 7 | <1.6 | [100] |
| Acanthamoeba polyphaga (1501/3a) | 25 | 7 | 2.5 | [100] |
| Acanthamoeba polyphaga | 20–22 | 7.5–8 | 5 | [101] |
| Acanthamoeba culbertsoni (A1) | 25 | 7 | <1.6 | [100] |
| Acanthamoeba royreba (OR) | 25 | 7 | <1.6 | [100] |
| Acanthamoeba spp. (MR4) | 25 | 7 | 1.6 | [100] |
| Hartmannella vermiformis | 25 | ND | <1.6 | [100] |
| Enterovirus | 25 | 6–9 | 0.15 | [85] |
| Enterovirus | 20 | 6–9 | 0.25 | [85] |
| Enterovirus | 15 | 6–9 | 0.3 | [85] |
| Enterovirus | 10 | 6–9 | 0.5 | [85] |
| Legionella pneumophila | 25 | ND | 60 | [83] |
| Legionella pneumophila | 43 | ND | 55 | [83] |
| Legionella pneumophila serogroup 1 | 25–45 | 7.2 | 0.5 | [86] |
| Legionella pneumophila serogroup 1 | 25 | 8 | 0.95 | [86] |
| Legionella pneumophila serogroup 1 | 25 | 8.9 | 0.65 * | [86] |
ND: Not determined; * CT99.9 data.