Detoxification of Soils, Polluted Jointly by Heavy Metals, Acid Wastes and Acid Precipitations -- Contamination of Soils by Waste Deposits -- Health-ecological Investigation of Soil Pollution with Heavy Metals and Arsenic in a Metallurgical and ore output region -- Quantitative Health Risk Assessment of Hydrocarbon Contamination at Former Inner Town Bus Depot (Case Study) -- Extraction with EDTA to Assess the Global Risk Presented by Heavy Metals (Cd, Ni, Pb) in Soils and Sediments -- The Impact of Soil Pollutants on Soil Microbial Activity -- Assessment of Inorganic Priority Pollutants in Contaminated Soils: Harmonization of Analytical Protocols For Heavy Metal Extraction: Analytical Speciation -- PCBs Content in Topsoils Around the Metallurgical Plant Kremikovtsi -- New Bulgarian Soil Pollution Standards -- Studies About Remediation of Contaminated Soils with Toxic Metals -- Assessment of the POPs Issues in the Republic of Moldova -- The Problem of Soil Pollution in Russia and Associated Health Problems -- Present State, Risk Assessment and Treatment Options for the Conversion of Liquid Ballistic Missile Propellants in Azerbaijan Republic -- Using Lepidium as a Test of Phytotoxicity from Lead/Zinc Spoils and Soil Conditioners -- Hydrogeophysical Techniques for Site Characterization and Monitoring: Recent Advances in Ground-penetrating Radar -- Geochemical Assessment of Reclaimed Lands in the Mining Regions of Ukraine -- Urban Soils Pollution in Belarus: Priority Pollutants and Levels -- Identification of Pollutants in Soils around the Obsolete Pesticides Stocks in Ukraine -- Design of New "Ionic Liquids" for Liquid/Liquid Extraction of Persistent Toxic Substances -- Land and Soil Resources in Armenia: State of the Art and Policy Measures -- Sorption-desorption Tests to Characterize Soils Contaminated by Heavy Metals: Implications for Risk Assessment -- Soil-plant Transfer of Organic Chemicals and Derivation of Trigger Values -- A Single Chemical Extraction Scheme for the Simultaneous Evaluation of the Potential Mobility of a Metalloid (As) and Metallic Elements (Cd, Cu, Ni, Pb, Zn) in Contaminated Soils and Mine Wastes -- Numerical Models for Prediction of Flow and Transport in Soil at the Field Scale -- Diminishing of Human Exposure from Active Lead and Zinc Mining Dumps -- Soil Remediation Scenarios for Heavy Metal Contaminated Soil -- Degradation of Soil in Kazakhstan: Problems and Challenges -- Ecology Screening and Mapping of Heavy Metal Pollution of Soils by Laser Mass Spectrometry -- Analytical Techniques and Bioindicators in Environmental Control: Honeybees, Mussels, Bioluminescent Bacteria: Rapid Immunoassays for Pesticide Detection -- Accumulation and Transformation Processes of Pollutants in Soil -- Laser Mass Analyser in the Configuration of a Multi-purpose Transportable Mass Spectrometric System for Express Environmental Analysis: Applicability and Analytical Limitations -- Bioremediation of Contaminated Soils by Hydrocarbons Degrading Bacteria and Decontamination Control -- Application of Capillary Electrophoresis for Soil Monitoring. The book contains the contributions at the NATO Advanced Research Workshop on Soil Chemical Pollution, Risk Assessment, Remediation and Security, which took place in Sofia, Bulgaria, May 23-26, 2007. Scientists representing fields of chemistry, biology, toxicology, physics, risk assessment, ecology, environmental protection, remediation and public health, from Armenia, Azerbaijan, Belarus, Belgium, Bulgaria, Germany, France, Hungary, Italy, Kazakhstan, Moldova, Netherlands, Poland, Romania, Russian Federation, Spain and Ukraine participated in the work of the ARW. The main objective of the ARW was to contribute to the existing knowledge on soil pollution and remediation. Stress was given to: critical assessment of the used analyses and methods for study effects in combined chemical pollution (organic pollutants and pesticides, metals) on soil biota and fertility; to evaluate specific aspects of the risk assessment; to assess the most advanced technologies for soil remediation used for different purposes; to evaluated the economical involvement; to evaluate national policies for soil security in different NATO and partner countries.