This edition first published 2019
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Library of Congress Cataloging‐in‐Publication Data applied for
ISBN: 9781119414629
Cover design by Wiley
Cover images: Background: Courtesy of Karen Bauschlicher, Whitman College, Class of 2022.
Overlay: Courtesy of Frank M. Dunnivant
To the chemists who have had a positive influence on my career: Loretta McLean, John Coates, Alan Elzerman, Philip Jardine, and Rene Schwarzenbach. And to my family, Marion, Lukas, and Marley. Thanks to all of you,
Frank M. Dunnivant
To my family, Tessa, Jude, and Elsa, thank you for supporting me throughout.
Elliot Anders
While there are many of textbooks on environmental chemistry and fate and transport phenomena, and they each have their place in education, this is the first book to truly integrate the subjects chemistry, fate and transport modeling, assessment, laws, and environmental laboratory experiments. The entire text was edited to ensure a consistent modeling theme that is vital to the regulatory applications of environmental fate and transport of contaminant science. These applications are truly multimedia in scope and encompass modern‐day regulations in successful EPA approaches in the Clean Air Water and Drinking Water Acts. The related RCRA and CERCLA (Superfund) programs address hazardous and toxic materials and ensure that environmental and human health are equally protected. These laws use mathematical models to assess contaminant exposure that contribute to multiple adverse effects in the biosphere. Most books in this genre are conceptual in nature or require a working knowledge of differential calculus to effectively derive and use new models. This prerequisite effectively eliminates many people from working in fate and transport.
We approach each of these topics initially from a conceptual perspective, and then, we explain the concepts in terms of the math necessary to model the problem. The only prerequisites for understanding the concepts covered in this book are a basic knowledge of algebra and first‐year college chemistry. Mathematic enthusiasts will find the extensive, step‐by‐step, end‐of‐chapter derivations useful. This last feature is unique to all other textbooks. For the fate and transport modeling chapters (Chapters 4-9), we have included a simple, user‐friendly web‐based, online simulator, Fate®, which uses basic step and pulse models to predict the fate and transport of pollutants in lake, river, groundwater, and atmospheric systems. Fate® can be an effective teaching and learning tool, as discussed in the “How to Use Fate” section of the introductory materials.
This book is the result of a challenge I made to one of my senior chemistry students. I challenged Elliot Anders, the coauthor of this book, to create a new version of EnviroLand, the precursor to Fate®. If he did so, I told him, I would write a book to accompany it. To my surprise, Elliot finished the software in a few months and to meet my end of the bet, I had to write the 2006 textbook around the software. We feel that this textbook provides a very unique instructional tool for students and environmental professions who lack the rigorous mathematical backgrounds to be able to derive the governing fate and transport equations, but nonetheless require an understanding of the subject. This book can be used to teach a variety of classes, from a new type of environmental chemistry course to new fate and transport courses for support personnel who want to work in the environmental arena. I use the book to teach environmental chemistry to undergraduate students majoring in chemistry, geology, and biology, to mostly prepare them for work in the environmental consulting arena and government. These students usually have sufficient background to work in environmental remediation but lack the basic engineering knowledge to be truly effective in this area. I have had great success in expanding the academic horizons of science students to areas of chemistry, modeling, risk assessment, and environmental legislation. In addition, there is no reason that this book cannot be used in a graduate course in fate and transport, since it provides an especially extensive and complete development of fate and transport models. In this case, the professor can use the book as a conceptual guide while teaching the derivation portion of the course in the classroom.
New additions to this book include free software available at https://sites.google.com/a/whitman.edu/frank‐dunnivant‐webpage/environmentalsoftware:
We hope you enjoy our approach to environmental chemistry and pollutant fate and transport modeling.
Frank M. Dunnivant
September 2018
A book of this detail and 20‐year effort has involved many people. First, I thank my coauthor, Elliot Anders, for challenging me to make the software better than the original Visual Basic version. Next, I thank Raymond Whittemore for writing, editing, and making many, many excellent suggestions. Note Dr. Whittemore's experience with, and knowledge of regulatory modeling were essential to the revised theme of this edition. Ray participated in water quality modeling training workshops for more than a decade for EPA's Exposure Assessment Laboratory in Athens, GA. Late in his career, he participated in the EPA Council for Regulatory Environmental Modeling (CREM) development in a leadership role in the surface water quality modeling group discussions.
Then, I thank Dr. Nate Boland and his students for testing this book and materials in his Environmental Chemistry and Engineering class at Whitman College. Certainly, a great thank you goes to my former student John Brooksbank for derivations of the many pollutant fate and transport equations that do not appear in any textbook in this detail. Many students can earn an A in differential equations but few can apply the knowledge like John has. The end‐of‐chapter problems, answers, and laboratory experiment results have been provided by 19 years of students taking my classes. I thank all of you for a job well done.
A process that results in two distinct layers of water in a lake system.
Stratification results due to heating of the surface water and cooling of lower waters by the Earth that sets up a density difference in the two bodies of water. The cool water settles to the bottom of the lake, while the warmer water is present at the surface.