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Author: Harry M. Ohlendorf Publisher: ISBN: Category : Anhinga anhinga Languages : en Pages : 100
Book Description
In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Author: Harry M. Ohlendorf Publisher: ISBN: Category : Anhinga anhinga Languages : en Pages : 100
Book Description
In 1972 and 1973 we collected 1,339 clutches of eggs of anhingas (Anhinga anhinga) and 17 species of waders (herons, egrets, bitterns, ibises, and storks). We analyzed the eggs for organochlorine residues and compared shell thickness of these eggs and others collected since 1946 (and now in museum collections) with shell thickness of eggs collected before the widespread use of organochlorine pesticides. Eggshells were significantly thinner in one or more regions for the post-1946 samples of anhinga, great blue heron, black-crowned night heron, and wood stork. We detected no significant change in the other species.
Author: Jules M. Blais Publisher: Springer ISBN: 940179541X Category : Technology & Engineering Languages : en Pages : 515
Book Description
The human footprint on the global environment now touches every corner of the world. This book explores the myriad ways that environmental archives can be used to study the distribution and long-term trajectories of chemical contaminants. The volume first focuses on reviews that examine the integrity of the historic record, including factors related to hydrology, post-depositional diffusion, and mixing processes. This is followed by a series of chapters dealing with the diverse archives and methodologies available for long-term studies of environmental pollution, such as the use of sediments, ice cores, sclerochronology, and museum specimens.
Author: James P. Meador Publisher: CRC Press ISBN: 9781566700719 Category : Science Languages : en Pages : 516
Book Description
Many books have been written about the effects of toxic chemicals on wildlife, but none has focused on the practical question, "How much of a chemical in the tissues of an animal is harmful?" This book deals exclusively with that question. This comprehensive reference will certainly become the standard resource on the topic, offering authoritative and sound advice on many environmental contaminants. With chapters written by outstanding experts in their respective fields, this is not only a scholarly collection of discussions on different chemicals, but, for those who have the day-to-day task of evaluating the harm of environment contaminants to wildlife, this book will provide answers on, for example, how to interpret 1 ppm lead in the liver of a duck or fish. The authors explain the snags of interpreting data that are sometimes conflicting or insufficient, providing the reader with helpful advice on how to cope with such data. Each chapter reviews literature on a specific chemical, followed by a easy-to-understand summary providing technical guidance. For many years this book will remain the preeminent reference on how to interpret contaminant levels of organochlorine pesticides, PCBs, dioxins, PAHs, metals, selenium, and fluorides in wildlife.
Author: David M. Whitacre Publisher: Springer ISBN: 3319108611 Category : Science Languages : en Pages : 186
Book Description
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
Author: John Timbrell Publisher: CRC Press ISBN: 100083445X Category : Medical Languages : en Pages : 317
Book Description
As with the previous editions, Introduction to Toxicology, Fourth Edition, continues to chart the evolution of the field of toxicology, from the use of natural toxins by ancient tribes through the developments established by Paracelsus, and progresses through to the current topics in the public interest. For centuries, the study of toxicology has fascinated students. The book begins with basic toxicological principles, including an historical summary, dose-response relationships (NEW chapter), exposure-response relationships (NEW chapter), disposition, and metabolism of xenobiotic toxic substances. Other important new chapters include target organ toxicity, toxicity of carcinogenic agents and new and updated concepts in toxicity testing, and antidotes and treatment of poisonings. In all, nine new or expanded chapters from the third edition are advanced. Current concerns about the effects of therapeutic drugs, carcinogens, industrial toxins, pesticides, and herbicides on human health, animal welfare, and the stability and maintenance of the ecosystem continue to highlight toxicology as an important and growing scientific discipline. Key features: Comprehensive coverage of the field of toxicology which illustrates its importance to and impact on society Uses pertinent examples, tables, and diagrams to aid understanding with learning objectives, summaries, questions, and answers for each chapter Clearly and concisely written and presented concepts for easy comprehension by toxicology, biomedical, and health science students Examines the complex interactions associated with toxicological events Covers the effect of toxins on biological and physiological systems This book successfully condenses the diffuse literature in the field into an accessible and readable text, made easier with the insertion of many tables and figures. It introduces fundamental concepts and builds upon these using topical and relevant historical examples. Its improved format includes learning objectives and summaries of each chapter, as well as questions and answers suitable for self-assessment. This latest edition is an invaluable resource for undergraduate and graduate toxicology students, as well as an introductory text for other health care students and professionals. The book also functions as a comprehensive introductory reference text for environmental scientists, medical biologists and chemists, chemical engineers, and regulatory agencies, with interests in toxicologically related areas.
Author: Harry M. Ohlendorf
Author: Harry M. Ohlendorf
Author: 
Author: Jules M. Blais
Author: James P. Meador
Author: U.S. Fish and Wildlife Service
Author: 
Author: David M. Whitacre
Author: 
Author: John Timbrell
Author: