Interaction of Polycyclic Aromatic Hydrocarbons with Dissolved and Sediment Associated Humic Materials PDF Download
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Author: Thomas Donald Gauthier
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
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Author: Thomas Donald Gauthier
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
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Author: Katrin Kollist
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 102
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Author: John W. Delaney
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Usha Varanasi
Publisher: CRC Press
ISBN: 9780849368448
Category : Science
Languages : en
Pages : 360
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Book Description
This book shows how the biological transport, bioaccumulation, disposition, and toxicity of polycyclic aromatic hydrocarbons (PAH) in the aquatic environment are influenced by the ability or inability of organisms to metabolize these environmental pollutants. Written by leading scientists in the fields of PAH metabolism and toxicity in both aquatic and mammalian systems, this book discusses recent advances in the areas of PAH biogeochemistry and bioaccumulation, microbial degradation, enzymes of activation, and detoxication, metabolism of PAH, and laboratory and field studies on carcinogenic/toxic effects. Additionally, important similarities and differences in metabolism of PAH by aquatic and terrestrial organisms are featured. The discussion of bioavailability, metabolism, and subsequent toxic effects should aid in the assessment of the ecological consequences of PAH in the aquatic environment.
Author:
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ISBN:
Category :
Languages : en
Pages :
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Leonardite is a naturally occurring oxidized form of lignite coal that is rich in humic materials. It is collected during coal-mining procedures, as it is commonly found overlying coal seams. Humic substances have been shown to significantly enhance the aqueous solubilities of PAHs by acting as a surfactant, increasing the water solubility of the PAH and allowing the contaminants to enter the aqueous phase. The use of humic acids on contaminated soils has the potential to greatly enhance the solubility, and consequently the bioavailability, of PAHs allowing for an easier and more efficient bioremediation procedure. A fluorescence quenching method was used to determine the association constants (Kb) for various water-soluble humic materials and naphthalene. The objective of the microcosm study was to determine if a variety of dissolved humic material solution amendments could influence the biodegradation rate of selected PAHs, namely anthracene and benzo[a]pyrene, in a soil with previous exposure to PAHs. (Abstract shortened by UMI.).
Author: Kim David Jones
Publisher:
ISBN:
Category : Organic water pollutants
Languages : en
Pages : 384
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Author: Ulrich Förstner
Publisher: Springer
ISBN: 3540461442
Category : Science
Languages : en
Pages : 195
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Sediments are increasingly recognized as both a carrier and a possible source of contaminants in aquatic systems, and they may also affect groundwater quality and agricultural products when disposed on land. Four aspects are covered reflecting the development of knowledge in particle-associated pollutants during the past twenty-five years: - the identification, surveillance, monitoring and control of sources and distribution of pollutants, - the evaluation of solid/solution relations of contaminants in surface waters, - the study of in-situ processes and mechanisms of pollutant transfer in various compartments of the aquatic ecosystems, - the assessment of the environmental impact of particle-bound contaminants, i.e. the development of sediment quality criteria. A final chapter focusses on practical aspects concerning contaminated sediments.
Author: Danny D. Reible
Publisher: Springer Science & Business Media
ISBN: 1461467268
Category : Technology & Engineering
Languages : en
Pages : 496
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Book Description
The purpose of this book is to help engineers and scientists better understand contaminated sediment sites and identify and design remedial approaches that are more efficient and effective. Contaminated sediment management is a difficult and costly exercise that is rarely addressed with easily identified and implemented remedies. It is hoped that this book can help identify and implement management approaches that provide an optimal, if not entirely satisfactory, solution to sediment contaminant problems.
Author: Leif Krag Rowles
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 360
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