The quantitative treatment of ecotoxicology is fully explored in this book. Fundamental concepts and definitions of the fate and effects of toxic chemicals are discussed with reference to various levels of ecological organization. Ecotoxicology and associated topics are defined, and the final chapter summarizes the book with a brief discussion of ecotoxicological assessment. Although the book focuses primarily on aquatic systems, the methods can be modified for application to terrestrial systems. The text is intended for environmental toxicologists, pollution biochemists, limnologists and oceanographers.