Population equivalent (pop.eq)

Assessment unit of organic pollution found in water representing the quality of organic matter discharged per day per capita. This measurement unit can easily compare the flow of pollutants. Among the parameters * characterizing pollution, the pollution treated in wastewater treatment plants is quantified by the population equivalent. The population equivalent is defined by Article R2224-6 of the General Code of Local Authorities, as the organic biodegradable load having a five-day biochemical oxygen demand * (BOD5) of 60 g of oxygen per day.