U.S. Environmental Protection Agency


Date of this Version



Sewage and Industrial Wastes, Vol. 29, No. 9 (Sep., 1957), pp. 1002-1017


U.S. government work


Waste effluents from many industries are toxic to fish and other aquatic life. The control or treatment of these wastes for safe release into receiving waters presents a problem of consider able magnitude.

Much effort has been expended by some industries to solve this problem, primarily through chemical analysis for possible toxic components and then generally by a search of the literature to find out how toxic a particular component may be. Unfortunately, this approach has not been successful, nor can it be expected to be productive of satisfactory answers.