This set of two volumes is the result of the Fourth International KfK/TNO Conference on Contaminated Soil (Berlin, Germany, May 3--7, 1993) and contains over 300 contributions from about 20 countries. Contributions are centered around the following themes: * Strategies and policies; legal, economic and social aspects; * Risks; * Management; * State of the art of applied remediating technologies (case studies, experiences, and evaluation); * Research and development, emerging technologies; * Prevention of soil contamination; * Workshops. The work is complemented by a keyword index.