Hydrosphere [electronic resource] : freshwater systems and pollution / Dana Desonie.

Description based on print version record.

Includes bibliographical references and index.

The water cycle -- Surface waters -- Surface water resources -- Groundwater and its use -- Where water pollutants come from and where they go -- Possible health effects of toxic chemicals -- Toxic organic pollutants -- Toxic inorganic pollutants -- Biological pollutants -- Cleaning point source pollution -- Modern water cleanup issues -- The history of water pollution in the Great Lakes -- Conclusion -- Glossary.