Which of the following disinfectants have an inactivation credit table by the EPA for different pathogens?

The correct answer is ozone because it is a powerful oxidizing agent and has well-documented efficacy against a broad range of pathogens, including bacteria, viruses, and protozoa. The Environmental Protection Agency (EPA) has established inactivation credit tables for ozone to quantify its effectiveness in disinfecting water and wastewater. These tables provide guidance on the concentration of ozone needed and the contact time required to achieve specific levels of pathogen inactivation, making it a valuable tool in assessing water treatment processes.

In contrast, while sodium hypochlorite (a common form of chlorine) is also used for disinfection, it may not have as comprehensive an inactivation credit table as ozone. Organic chlorine compounds may not have standardized inactivation credits that apply uniformly across various pathogens, as they can vary widely in their effectiveness. Carbon dioxide, on the other hand, is not typically used as a disinfectant and does not have established inactivation credit tables for pathogens. Thus, ozone stands out as the disinfectant with established EPA inactivation credit tables for different pathogens.