This volume provides a source of critically evaluated water-quality data concerning the effects of chromium, nickel, aluminium and nitrite on freshwater fish and includes an assessment of the toxicity of mixtures. Commissioned by the European Inland Fisheries Advisory Commission, an agency of the United Nations Food and Agriculture Organization, the reports cover all stages of the life cycle and relevant trophic levels, including aquatic invertebrates and plants and potential bio-accumulation through the food chain. An extensive bibliography is provided for each chapter as well as a complete glossary of terms and fish species mentioned in the text.