Abel Wolman

Abel Wolman was an American sanitary and environmental engineer known as a founder of modern water treatment practice. With chemist Linn Enslow, he developed in the 1920s a practical method for calculating safe chlorine dosages for drinking water, standardizing water chlorination and enabling municipalities across the United States to dramatically reduce waterborne diseases such as typhoid. He taught at Johns Hopkins University for decades, advised the World Health Organization and United Nations on water and sanitation policy worldwide, and the American Water Works Association's Abel Wolman Award honors his influence on the field. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/