Humic Substances and Chemical Contaminants : Proceedings of a Workshop and Symposium Cosponsored by the International Humic Substances Society, Divisions S-2, S-1, S-3, S-4, and S-11 of the Soil Science Society of America, and Division A-5 of the American

by Clapp, C. E.; Hayes, M. H. B.; Senesi, N.; Bloom, P. R.; Jardine, P. M.; Clapp, E. C.

• ISBN13: 9780891188377
• ISBN10: 0891188371
• Format: Hardcover
• Copyright: 2001-12-01
• Publisher: Amer Society of Agronomy

Summary

"Finally, a thorough exploration of all aspects of humic-anthropogenic and humic-metals interactions. Four sections cover composition and structure, interaction with xenobiotics, metals interaction, and transport and modeling, a topic of prime environmental importance, especially with regard to tracing a contaminant to its source. A companion CD combines computational chemistry, scanning probe microscopy, and animation to visualize the chemical reactivity of humic substances. "

Table of Contents

Foreword	p. ix
Preface	p. xi
Contributors	p. xv
Conversion Factors for SI and Non-SI Units	p. xix
Composition and Structure	p. 1
Considerations of Compositions and of Aspects of the Structures of Humic Substances	p. 3
Predicting Chemical Reactivity of Humic Substances for Minerals and Xenobiotics. Use of Computational Chemistry, Scanning Probe Microscopy and Virtual Reality	p. 41
Models of Humic Structures: Association of Humic Acids and Organic Matter in Soils and Water	p. 73
Molecular Sizes and Association Forces of Humic Substances in Solution	p. 89
Kinetics of Humic Acid Associations	p. 119
Interaction with Xenobiotics	p. 127
Adsorption of Pesticides by Humic Acids from Organic Amendments and Soils	p. 129
Characterization of the Interaction between Xenobiotic Residues and Humic Substances	p. 155
Solubilization of Anthropogenic Compounds by Humic Substances	p. 165
Association of Alcohol Ethoxylates with a Dissolved Humic Substance	p. 177
Binding of Small Organic Molecules by Soluble Humic Substances	p. 187
Measurements of Sorption-Desorption and Isotherm Analyses	p. 205
Modern Laboratory Procedures for Measuring Organic Crop Protection Chemicals	p. 241
Biological Techniques for Measuring Organic and Metal Contaminants in Environmental Samples	p. 255
Impact of Humic Substances on Toxicity of Polycyclic Aromatic Hydocarbons and Herbicides	p. 275
Long-Term Fate of Organic Chemicals in Lysimeter Experiments and the Role of the Bound Residue Fraction	p. 289
Interaction With Metals	p. 303
Modeling Concepts in Metal-Humic Complexation	p. 305
X-Ray Spectroscopy Applications for the Study of Humic Substances	p. 317
Photochemical and Microbial Processes Influencing Iron-Humic Interactions in Stream and Lake Sediments	p. 351
Tight Metal Binding by Solid Phase Peat and Soil Humic Acids	p. 371
Nuclear Magnetic Resonance Studies of Metal Interactions with Humic Substances	p. 397
Transport and Modeling	p. 427
Subsurface Transport of Dissolved Humic Substances and Associated Contaminants	p. 429
Analysis of the Transport of Hydrophobic Organic Xenobiotics in the Presence of Dissolved Organic Carbon Using Soil Column Experiments	p. 449
Effect of Non-Target Organics on Organic Chemical Transport	p. 471
Subject Index	p. 489
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