This volume features the proceedings of the Tenth International Conference on the Development and Application of Computer Techniques to Environmental Studies (ENVIROSOFT), and will be of interest to many specialists such as environmental scientists, planners and administrators, program developers, regulators and industrialists. The wide range of issues covered and the diversity of contributors demonstrate the in-depth penetration of computing into the scientific world. The papers included are divided under the broad headings: Environmental Management and Decision Analysis; Environmental Impact Assessment; and Air, Water and Soil Pollution, while several contributions confirm the necessity of specialised software for local, small scale issues.