Theory and applications of contaminant/pollutant distribution in the hydrosphere-geosphere-biosphere-atmosphere system, remediation methods, prevention, industrial/agricultural best practices. Topics include aqueous geochemistry, organic, inorganic, gas phase, and ecosystem impacts of environmental contaminants. Pre: CHEM 161 and CHEM 162, or consent. (Spring only) (Cross-listed as GG/ERTH 425)