I: Cadmium in the Environment.- Geochemistry of cadmium.- Evaluation of methods for the speciation of cadmium.- Cadmium in the atmosphere.- Cadmium in fresh and estuarine waters.- The distribution of cadmium in the sea.- Cadmium in sediments.- Removal of cadmium from wastewaters.- II: Bioaccumulation of Cadmium.- Cadmium in sludges used as fertilizer.- Bioaccumulation of cadmium in marine organisms.- Cadmium in freshwater ecosystems.- Cadmium contamination in agriculture and zootechnology.- Pathways and distribution of cadmium in grasslands.- Contamination and effects of cadmium in native plants.- III: Cadmium and Human Health.- Cadmium in foods and the diet.- Cadmium in human population.- Biological indicators of cadmium exposure and toxicity.- Human health effects of exposure to cadmium.- Cadmium, the environment and human health.