What is the standard minimum ORP required for effective pathogen deactivation?

The standard minimum Oxidation-Reduction Potential (ORP) required for effective pathogen deactivation is 650 mV. ORP is a measurement that indicates the cleanliness of water and its ability to break down contaminants. Higher ORP levels signify a greater ability to disinfect and eliminate pathogens effectively.

At 650 mV, water treatment systems, such as swimming pools and spas, can maintain a sufficient level of disinfection. This is crucial for ensuring that harmful microorganisms such as bacteria, viruses, and protozoa are adequately eliminated, which is vital for maintaining public health and safety in aquatic facilities.

While other ORP levels such as 500, 550, and 700 mV are relevant to discussions of disinfection and water quality, the standard minimum requirement for effective pathogen deactivation is set at 650 mV because it balances effective disinfection without leading to excessive chemical use or potential harm to swimmers.