Annual Wastewater Produced Per Region (IMAGE) Terry Collins Assoc Caption Annual volumes of wastewater produced per capita across regions; calculated as a function of volumes of urban wastewater production in 2015 and the urban population in the same year in each region. The world average is based on the total amount of urban wastewater produced and the urban population at the global level in 2015 Credit UNU-INWEH Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.