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Author: Keith W. Little Publisher: CRC Press ISBN: 1439887969 Category : Science Languages : en Pages : 247
Book Description
Environmental Fate and Transport Analysis with Compartment Modeling explains how to use the powerful, highly flexible, and intuitive compartment approach to estimate the distribution of chemical contaminants in environmental media in time and space. Add this Easy-to-Use Approach to Your Environmental Modeling Toolbox This numerical technique enables readers to easily develop the equations that describe complex environmental problems by assembling the equations out of compartmental building blocks. The compartments may describe spatial subunits of single- or multi-environmental media, and the way one hooks them together implicitly provides the dimensionality of the problem. With this approach, assembling the equations to describe chemical fate and transport in a three-dimensional, multimedia system is fundamentally no more challenging than a one-dimensional, single-medium problem. Go Beyond "Black Box" Modeling with the Flexible GEM Software The book includes access to the Generic Environmental Model (GEM), a new software package developed by the author. This software implements the compartment approach based on user-prepared input files and solves the resulting mathematical equations. It allows readers to solve linear, nonlinear, and steady-state problems and offers four methods for solving dynamic problems. Each solution technique is reviewed, along with the error properties and the criteria for avoiding or minimizing numerical errors. The book also describes solution techniques and the underlying mathematical theory for solving nonlinear systems. Compartment Modeling from the Ground Up, Made Accessible to Non-Mathematicians A user-friendly introduction to environmental compartment modeling for the beginning modeler, this is also a useful resource for the experienced modeler. It combines a reference on compartment modeling with a user’s guide to the GEM. Throughout, the GEM is used to illustrate the theory with numerous examples, while the theoretical discussions illuminate the GEM’s functionality.
Author: Keith W. Little Publisher: CRC Press ISBN: 1439887969 Category : Science Languages : en Pages : 247
Book Description
Environmental Fate and Transport Analysis with Compartment Modeling explains how to use the powerful, highly flexible, and intuitive compartment approach to estimate the distribution of chemical contaminants in environmental media in time and space. Add this Easy-to-Use Approach to Your Environmental Modeling Toolbox This numerical technique enables readers to easily develop the equations that describe complex environmental problems by assembling the equations out of compartmental building blocks. The compartments may describe spatial subunits of single- or multi-environmental media, and the way one hooks them together implicitly provides the dimensionality of the problem. With this approach, assembling the equations to describe chemical fate and transport in a three-dimensional, multimedia system is fundamentally no more challenging than a one-dimensional, single-medium problem. Go Beyond "Black Box" Modeling with the Flexible GEM Software The book includes access to the Generic Environmental Model (GEM), a new software package developed by the author. This software implements the compartment approach based on user-prepared input files and solves the resulting mathematical equations. It allows readers to solve linear, nonlinear, and steady-state problems and offers four methods for solving dynamic problems. Each solution technique is reviewed, along with the error properties and the criteria for avoiding or minimizing numerical errors. The book also describes solution techniques and the underlying mathematical theory for solving nonlinear systems. Compartment Modeling from the Ground Up, Made Accessible to Non-Mathematicians A user-friendly introduction to environmental compartment modeling for the beginning modeler, this is also a useful resource for the experienced modeler. It combines a reference on compartment modeling with a user’s guide to the GEM. Throughout, the GEM is used to illustrate the theory with numerous examples, while the theoretical discussions illuminate the GEM’s functionality.
Author: Anu Ramaswami Publisher: John Wiley & Sons ISBN: Category : Science Languages : en Pages : 696
Book Description
A unified presentation of environmental model development, implementation, and testing Integrated Environmental Modeling teaches model development, model implementation, and model testing skills in a unified manner, crosscutting the three "media" comprising environmental systems--air, water, and soil--by focusing on parallels and similarities between them, and introducing a new generation of multimedia models. No other single volume offers comprehensive coverage of chemical transport and fate in all three environmental media, including the resulting impacts on the biosphere and human health, with a focus on the fundamental processes underlying environmental modeling. Integrated Environmental Modeling provides broad-based training in the development of pollutant transport and fate models in air, water, and soil, with a focus on five essential competencies: * Understanding the fundamental process principles that govern contaminant transport and transformations in multimedia environments, emphasizing the parallels and links between different media * Learning model development skills, starting from the simplest conceptual models and building more complex and realistic models that couple component process modules at the appropriate spatial and temporal scales of resolution * Using statistical methods and data sources to estimate input parameters and characterize model sensitivity and uncertainty * Gaining hands-on experience with computer-aided implementation and evaluation of fate and transport models using realistic case study examples * Applying fate and transport models to evaluate pollutant interactions with the biosphere, particularly in human exposure modeling and health risk assessment Complete with case studies, Integrated Environmental Modeling is a valuable, single-source tool for senior and graduate students in environmental science and engineering courses on pollutant transport, remediation, and risk assessment, and an essential reference text for professionals in industry, consulting, and government agencies responsible for environmental assessment and risk analysis.
Author: James N. Seiber Publisher: CRC Press ISBN: 1000461726 Category : Technology & Engineering Languages : en Pages : 262
Book Description
The air is an important but largely unrecognized source of contaminant fate in the environment, including transport of pesticides and contaminants to nontarget areas and exposures for people and wildlife. This book summarizes and places in perspective the potential transport, transformation, and health implications of pesticides and contaminants in air, including the air we breathe. It delves into the hypothesis that the atmosphere is the most significant environmental compartment affecting the overall transport and fate of many classes of environmental contaminants. The authors draw parallels between sampling, analysis, and impact of airborne toxics and particulate matter with the COVID-19 pandemic. Airborne viruses and fine particulate matter, which are of similar size, have remarkable parallels in how they are transmitted and accumulated in the respiratory tract. FEATURES Assesses exposures of people and wildlife to airborne chemicals Includes case study applications, with relevant data summarized for pesticides and contaminants in air Discusses approaches to modeling pesticides’ and contaminants’ dispersion and fate in air Includes an assessment of the physicochemical properties of pesticides and contaminants that influence sampling and atmospheric mobility and fate The authors are global experts in air contaminant research, and this book is well organized and helpful for people interested in regulatory, health, and other topics related to pesticides and contaminants in air. James N. Seiber is a Professor Emeritus at the University of California, Davis. Thomas M. Cahill is an Associate Professor in the School of Mathematical and Natural Sciences at Arizona State University.
Author: Martin Wagner Publisher: Springer ISBN: 3319616153 Category : Science Languages : en Pages : 303
Book Description
This book is open access under a CC BY 4.0 license. This volume focuses on microscopic plastic debris, also referred to as microplastics, which have been detected in aquatic environments around the globe and have accordingly raised serious concerns. The book explores whether microplastics represent emerging contaminants in freshwater systems, an area that remains underrepresented to date. Given the complexity of the issue, the book covers the current state-of-research on microplastics in rivers and lakes, including analytical aspects, environmental concentrations and sources, modelling approaches, interactions with biota, and ecological implications. To provide a broader perspective, the book also discusses lessons learned from nanomaterials and the implications of plastic debris for regulation, politics, economy, and society. In a research field that is rapidly evolving, it offers a solid overview for environmental chemists, engineers, and toxicologists, as well as water managers and policy-makers.
Author: Sally L. Benjamin Publisher: CRC Press ISBN: 1420026275 Category : Law Languages : en Pages : 680
Book Description
A Practical Guide to Understanding, Managing and Reviewing Environmental Risk Assessment Reports provides team leaders and team members with a strategy for developing the elements of risk assessment into a readable and beneficial report. The authors believe that successful management of the risk assessment team is a key factor is quality repor
Author: A. Eduardo Saez Publisher: CRC Press ISBN: 1466576243 Category : Science Languages : en Pages : 241
Book Description
Environmental Transport Phenomena offers a detailed yet accessible introduction to transport phenomena. It begins by explaining the underlying principles and mechanisms that govern mass transport and continues by tackling practical problems spanning all subdisciplines of environmental science and chemical engineering. Assuming some knowledge of ord
Author: Joseph Fiksel Publisher: Elsevier ISBN: 1483191052 Category : Business & Economics Languages : en Pages : 192
Book Description
Biotechnology Risk Assessment: Issues and Methods for Environmental Introductions tackles the environmental concerns associated with utilizing contemporary biotechnology. The title also examines the methods of implementing biotechnology while also minimizing the risks. The text first covers the suitability and applicability of risk assessment methods for environmental applications of biotechnology, and then proceeds to tackling the methods for evaluation of microorganism properties. Next, the selection deals with human exposure to viruses and genetically altered bacteria. The text also tackles the effects of bioengineered organisms on the ecosystem, along with the assessment of the transport and fate of bioengineered microorganisms in the environment. The seventh chapter discusses the analysis of the function and structure of ecosystem, while the eighth chapter details the controlled testing and monitoring methods for microorganisms. The book will be of great use to biotechnologists, microbiologists, ecologists, epidemiologists, and virologists.
Author: Alberto Pistocchi Publisher: John Wiley & Sons ISBN: 1118523709 Category : Science Languages : en Pages : 504
Book Description
Explains how GIS enhances the development of chemical fateand transport models Over the past decade, researchers have discovered thatgeographic information systems (GIS) are not only excellent toolsfor managing and displaying maps, but also useful in the analysisof chemical fate and transport in the environment. Among its manybenefits, GIS facilitates the identification of critical factorsthat drive chemical fate and transport. Moreover, GIS makes iteasier to communicate and explain key model assumptions. Based on the author's firsthand experience in environmentalassessment, GIS Based Chemical Fate Modeling explores bothGIS and chemical fate and transport modeling fundamentals, creatingan interface between the two domains. It then explains how GISanalytical functions enable scientists to develop simple, yetcomprehensive spatially explicit chemical fate and transport modelsthat support real-world applications. In addition, the bookfeatures: Practical examples of GIS based model calculations that serveas templates for the development of new applications Exercises enabling readers to create their own GIS basedmodels Accompanying website featuring downloadable datasets used inthe book's examples and exercises References to the literature, websites, data repositories, andonline reports to facilitate further research Coverage of important topics such as spatial decision supportsystems and multi-criteria analysis as well as ecological and humanhealth risk assessment in a spatial context GIS Based Chemical Fate Modeling makes a uniquecontribution to the environmental sciences by explaining how GISanalytical functions enhance the development and interpretation ofchemical fate and transport models. Environmental scientists shouldturn to this book to gain a deeper understanding of the role of GISin describing what happens to chemicals when they are released intothe environment.
Author: Keith W. Little
Author: Keith W. Little
Author: Anu Ramaswami
Author: James N. Seiber
Author: Martin Wagner
Author: Sally L. Benjamin
Author: A. Eduardo Saez
Author: Joseph Fiksel
Author: Alberto Pistocchi
Author: 
Author: Animal Damage Control Program (U.S.)