Epidemic dangers on account of the operation of cooling towers and the heating up of rivers

For some time fear has been growing amongst the population that through a temperature increase in waters as a result of cooling water discharges there may be an increase in pathogenic agents, especially in typhoid bacteria. After the conclusions brought about by personal, extensive examinations in still and running waters burdened with cooling water as well as by a test plant supplied with cooling water, neither an increase in the colony numerical values exceeding 4 digit numbers nor an increase in Salmonellae or the typhoid bacteria belonging to this group, could be determined. (orig.)