| D-H/S IONS | CHLORINE | |
| Long term effect | very long | depending on temperature, short till medium |
| Light sensibility | practically not | Medium |
| Temperature sensibility | practically not | Fast degradation at rising temperatures |
| Neutral pH | neutral | change of pH of the treated water |
| Contact time | medium | Short |
| Retarded efficiency through organic materials | Yes | Yes |
| Influence of ammonia or urea | till 5 mg/l not | reaction to chloramines |
| Efficiency against algae | Yes | Limited |
| Efficiency against fungi | Yes | Limited |
| Forming of smell | No | Yes |
| Change of taste | No | Yes |
| Danger of over dose | practically not | Yes |
| Carcinogenic/mutagenic | No | reaction : yes |
