An introductory text aimed at those with little background in environmental chemistry and pollution. This third edition develops a more international approach than the previous editions. Bridging the important environmental media such as the atmosphere, fresh waters, oceans and solid earth, it also emphasizes the inter-linkages between these media. The major human and environmental impacts of pollution are summarized, and case studies are included as illustrations of the measures needed for control. Worked examples and questions are included to facilitate both teaching and learning of the subject.