Wyniki wyszukiwania:

This volume explores the issues associated with the complex subject of water quality protection in an assessment of the successes and failures of the Clean Water Act over the past twenty years. In addition to examining traditional indicators of water quality, the authors consider how health concerns of the public have been addressed, and present a detailed examination of the ecological health of our waters. Taken together, these measures present a far more complete and balanced picture than raw water quality data alone.As well as reviewing past effectiveness, the book includes specific...