E-grāmata: Metal Contaminated Aquatic Sediments [Taylor & Francis e-book]

Ten papers from the Workshop on Metal Speciation and Contamination of Aquatic Sediments held on Jekyll Island, Georgia in June 1993. Among the topics are a global perspective on metals and sediments in fresh water, modeling transport and reaction in metal cycling, determining the redox status, adsorption and desorption rates, the effects of bioturbation on particle transport, and the Environmental Protection Agency's management strategy. Annotation c. by Book News, Inc., Portland, Or.

Over the past decade the sediments of many rivers, lakes, and estuaries have been contaminated by inorganic and organic materials

Over the past decade the sediments of many rivers, lakes, and estuaries have been contaminated by inorganic and organic materials. Contaminants from sediments, under certain conditions, can be released into overlying waters. Thus, sediments may be an important source of contaminants to waters in which littoral and atmospheric contaminants have been reduced or eliminated.
Often found in aquatic sediments, metals are exposed to many reactions, such as sorption and precipitation, and are greatly influenced by the redox conditions in the sediment. The reactions - usually over a period of time - reflect biotic processing as well as chemical transformations. This book describes these important processes.
Metal Contaminated Aquatic Sediments outlines advances in environmental chemistry, effective new modeling techniques, applications for biological treatment, and cycling and transport of trace metals in sedimentary environments.
Each chapter contains a detailed reference section that draws upon a stunning array of sources. The book includes many figures and tables that illustrate the process under discussion.

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