| Iodinated contrast media are among the compounds found most often in drinking water, since they generally persist after activated carbon treatment as well as oxidation processes such as ozonation. |
| These impurities are not present in raw water but are formed due to the process of ozonation used for treatment of water. |
| The ozonation stage is used to oxidize organic matter and reduce the potential for trihalomethane formation. |
| When ozonation is applied. Measuring at the point of entry should be adequate as bromate should not change within the system. |
| Early work has shown that the effects of ozonation, prior to chlorination, depend on treatment design and raw water quality and thus are unpredictable. |
| Cryptosporidium microorganisms are chlorine-resistant and can be filtered and disinfected through microfiltration, ozonation and UV disinfection. |
