U.S. Environmental Protection Agency


Date of this Version



Sewage and Industrial Wastes, Vol. 25, No. 2 (Feb., 1953), pp. 210-217


U.S. government work


This paper discusses the various ways in which aquatic organisms may be of use in solving problems associated with waste disposal. Since many state and federal laws set forth that nothing may be discharged that is deleterious to aquatic life, the most expedient way to determine the effect of an effluent is to study the aquatic organisms themselves.

In every river that has not been adversely affected by pollution there is a great variety of aquatic life. These organisms do not represent a great mass of living things, but rather they are organized into an intricately balance systems, often referred to as a food chain of biodynamic cycles.