ECOLOGICAL EFFECTS OF WASTEWATER: APPLIED LIMNOLOGY AND POLLUTANT EFFECTS. By E.B. Welch and T. Lindell.

(1980) 1992 2nd edition. Ppx,425. Tables and graphs, extensive bibliography. Laminated boards.

"This book provides a practical and concise introduction to the ecological consequences of water pollution. In tackling the problem of water quality deterioration this book combines the limnological and water pollution literature to describe how pollutants in wastewater affect populations of organisms in fresh water environments. ...A full description of how populations normally respond to environmental change is given in order for the reader to interpret or predict the effect of added substances in wastewater. Guidelines of acceptable and unacceptable levels of substances are provided, based on quantitative relationships between wastewater substances and the resulting effects on populations". This new edition draws on twenty years of research and is written to be useful to "scientists and engineers with or without a biological background".