Part 1 Prologue. Part 2 New Measuring Techniques: The Potential and Limitations of New Technical Approaches to Ecotoxicology Monitoring; Environmental Toxicity Assessment Using Luminescent Bacteria; Fluorescence "in situ" Hybridisation "en"Suspension (FISHES); Ecotoxicology Testing - Effective Use in Field Monitoring; Solid Phase Testing of Aquatic Sediments Using "Vibrio fischeri" - Test Design and Data Interpretation; Use of Radio-labelled Chemicals in Agricultural and EnvironmentalStudies - Transport and Degradation of Pesticides in Lower Sand Layers. Part 3 Tests Using Plants, Algae, etc.: Use of Aquatic Plants in Ecotoxicology Monitoring of Organic Pollutants, Bioconcentration and Biochemical Responses; QSAR Studies of AlgalToxicity; Acute Exposure Phytotoxicity Assay Based on Mobility Inhibition of "Chiamydomonas variabilis"; Validation of a Microplate-Based Algal Lethality Test Developed with the Help of Flow Cytometry. Part 4 Application of Monitoring Techniques: The Roleof UNIDO on Ecotoxicology Monitoring in Developing Countries; Agroecotoxicology in the Developing Asian Region - Pakistan; Ecotoxicology Monitoring of Industrial Effluents; Biodegradation Testing in the Regulatory Environment; Some Observations onBiodegradability Testing of Chemicals. Part 5 Case Studies: The Austrian Water Quality Monitoring System and its Integration into the Water Management Concept; Bromate Survey on European Water Utilities; Means to Prevent Bromate Formation and to RemoveBromate; Pesticide Residues in Foodstuffs in Pakistan - Organochlorine, Organophosphorus and Pyrethroid Insecticides in Fruits and Vegetables; The Effects of Industrial Wastes on Nitrification Processes Found Within Wastewater Treatment Works;Environmental Audit of a Former Soviet Port; Biological and Environmental Properties of Nitro-, Nitramine- and Nitrate Compounds - Explosives and Drugs: Application of QSPRICE and QSAR Studies in Environmental Toxicology Assessment; The Idrija MercuryMine, Slovenia, a Semi-Millennium of Continuous Operation: An Ecological Impact. Part 6 Risk Assessment Safety and Economics: EC Environmental Risk Assessment of New and Existing Chemicals; Private-Public Sector Co-operation to Improve Pesticide SafetyStandards in Developing Countries; The Role of the National Chemical Emergency Centre; The Economic Implications for Wastewater Treatment of Toxic or Inhibitory Sewage. Part 7 Epilogue.