This important volume - the product of a meeting of a select group of scientists - provides the most recent research results from the world's leaders in the study of toxic pollutants in sediments. It gives practical information on measuring and mapping distributions of concentrations of pollutants and their toxic effects in sediments. Also covered in this title are the use and relative advantages and disadvantages of benthic chambers, sedimentation traps, box corers, 'peepers' and other sampling techniques in sediment research and assessment.Important topics covered in this volume include: bioassay, elemental speciation, diffuse source problems, nutrient flux, biomethylation, bioavailability, and toxicity assessment. This work will help in assessment and monitoring of chemistry, dynamics, bioavailability, and toxicity of pollutants, as well helping to chart courses for remedial action. This book will be of interest to anyone interested in the processes controlling and the chemistry and movement of pollutants in sediments, especially: limnologists, aquatic toxicologists, engineers, lake managers, ecologists, biologists, and environmental chemists.