1 Principal Reasons for the Present Study and Choice of its Objectives. - 1. 1 The problem of industrial metal waste disposal into the marine environment. - 1. 2 Definition of the terms of reference of the study. - 1. 3 Criteria used for the selection of metals and metal complexes studied. - 1. 4 Some comments on the reasons for excluding certain metals. - 2 Origins Forms and Characteristics of Chromium Pollution. - 2. 1 Sources and production. - 2. 2 A summary of production and utilization. - 2. 3 Some applications. - 2. 4 An initial examination of the qualitative and quantitive wastes produced by various industrial processes discussed previously. - 2. 5 An examination of various known preventative techniques for waste products containing chromium. - 3 Origins Forms and Characteristics of Zinc and Cadmium Pollution. - 3. 1 Sources and production. - 3. 2 Summary of production and utilization. - 3. 3 Utilization. - 3. 4 A preliminary discussion on the qualitative and quantitative waste products produced by various industries. - 3. 5 Summary of the preventative techniques known for effluents containing zinc and/or cadmium. - 4 Origins Forms and Characteristics of Pollution by Cyano-Metal Compounds. - 4. 1 Summary of large-scale methods of production of cyanides and cyano-metal compounds. - 4. 2 Main industrial sectors concerned in the uses of cyanides and cyano-metallic compounds. - 4. 3 Census of various known prevention techniques for effluents containing cyanides and cyano-metal compounds. - 5 Measuring and Monitoring Systems of the Different Known forms of Pollution for the Polluting Elements or Compounds Concerned. - 5. 1 Water quality. - 5. 2 Parameters of interest to water quality. - 5. 3 Monitoring systems. - 5. 4 Analytical techniques. - 5. 5 General economic data. - 6 TheEco-Toxicological Risks Involved. - 6. 1 Introduction. - 6. 2 General considerations. - 6. 3 Supply routes and self-regulation of concentration in the marine environment. - 6. 4 Transfer to the bios. - 6. 5 Biological mechanisms (absorption-distribution-fixation). - 6. 6 Interaction parameters. - 6. 7 Toxity of elements or compound pollutants under consideration in this report. - 6. 8 Evolutionary variability Phenomena of adaptation. - 6. 9 Transfer to man. - 6. 10 Impact of marine pollution on man. - 6. 11 Research on the practical threshold of the marine environment. - 7 Conclusions General and Specific Recommendations. - 7. 1 General recommendations. - 7. 2 Specific recommendations. - 7. 3 Suggestions for pilot action plans. - Annex 1 General Synoptic Diagram of Pollution Caused by the Production and the Various uses of Chromium. - Annex 2 General Synoptic Diagram of Pollution Caused by the Production and the Various uses of Cadmium and Zinc. - List of Industrial Groups Members of the A. E. O. and Persons Who Contributed to the Study. Language: English