Historical Perspectives (J. Nriagu). Biological Chemistry of Chromium (E. Nieboer & A. Jusys). Production and Uses of Chromium (J. Nriagu). Atmospheric Emissions of Chromium from Natural and Anthropogenic Sources (J. Pacyna & J. Nriagu). Distribution and Characteristic Features of Chromium in the Atmosphere (J. Nriagu, et al.). Geochemistry of Chromium in the Oceans (L. Mayer). Occurrence and Distribution of Chromium in Natural Waters of India (B. Handa). Chromium Contamination of Groundwater (L. Calder). Chromium Removal from Industrial Wastewaters (S. Beszedits). Mobility and Bioavailability of Chromium in Soils (R. Bartlett & B. James). Chromium Toxicity to Algae and Bacteria (P. Wong & J. Trevors). The Significance of the Interactions of Chromium and Bacteria in Aquatic Habitats (M. Loutit, et al.). Chromium Toxicity: Effects of Microogranisms with Special Reference to the Soil Matrix (R. Coleman). Genetic Approaches in the Study of Chromium Toxicity and Resistance in Yeast and Bacteria (B.--I. Ono). The Toxicity of Chromium to Fish (D. Holdway) Mutagenic and Other Genotoxic Effects of Chromium Compounds (E. Nieboer & S. Shaw). Carcinogenicity of Chromium Compounds (A. Yassi & E. Nieboer). Chromium Hypersensitivity (A. Haines & E. Nieboer). Other Health Effects of Chromium Compounds (E. Nieboer & A. Yassi). Index.