Stream Ecology and Self Purification (An Introduction, Second Edition)

This new edition of a standard quantifies the processes whereby streams cleanse themselves, reducing their pollutant load as a natural process. It clarifies the self-purifying function of streams and rivers in light of recent EPA rules on nonpoint pollutants and total maximum daily loads. The book covers basic concepts such as biological oxygen demand and contains an extended discussion of how streams originate and how they fit into the geomorphology of the earth and other water supply sources. It provides a practical introduction to ecology combined with an explanation of how streams absorb and react to pollution. This text provides an excellent preparation aid to wastewater/water operator licensing exams.