The book will include chapters which will span from the role of geochemistry in the environment in general to the specific investigations on site characterization (dealing with sampling strategy, analytical procedures and problems). Specific articles will deal with health problems related to environment pollution, waste disposal, data base management, and illustration of specific case histories for characterization and remediation of brownfield sites. * Comprehensive analysis providing background information on geochemistry in general through to specific investigations * Provides practical insight through case study material * Informs and updates students and practitioners on hot topics, latest trends and developments.