Community Level Aquatic System Studies

Time-variable exposure profiles of pesticides are more often the rule than exception in the surface waters of agricultural landscapes. There is, therefore, a need to adequately address the uncertainties arising from time-variable exposure profiles in the aquatic risk assessment procedure for pesticides. Linking Aquatic Exposure and Effects: Risk Assessment of Pesticides provides guidance and recommendations for linking aquatic exposure and ecotoxicological effects in the environmental assessment of agricultural pesticides. Leading international scientists share their expertise in aquatic exposure assessment, aquatic ecotoxicology, and the risk assessment and management of plant protection products. The book incorporates the tools and approaches currently available for assessing the environmental risks of time-variable exposure profiles of pesticides. It also discusses the science behind these techniques. This volume covers the extrapolation techniques, including models that address the environmental fate, toxicokinetics, toxicodynamics, and ecological effects, for performing accurate aquatic environmental risk assessments of pesticides. It explains how to link aquatic exposure and effects in the risk assessment procedure for plant protection products.

This book provides comprehensive single source coverage of bioindication/biomonitoring in the fields of ecology, ecotoxicology and environmental sciences; from the ecological basics to the effects of chemicals on the environment and the latest test strategies. Contributions by leading figures in ecology from around the world reflect the broad scope of current thinking and research, making this volume essential reading for informed professionals and students.

Handbook of Ecotoxicology, Second Edition focuses on toxic substances and how they affect ecosystems worldwide. It presents methods for quantifying and measuring ecotoxicological effects in the field and in the lab, as well as methods for estimating, predicting, and modeling in ecotoxicology studies. Completely revised and updated with 18 new chapters, this second edition includes contributions from over 75 international experts. Also, a Technical Review Board reviewed all manuscripts for accuracy and currency. This authoritative work is the definitive reference for students, researchers, consultants, and other professionals in the environmental sciences, toxicology, chemistry, biology, and ecology - in academia, industry, and government.

When looking for a book on fish toxicology, you might find one that discusses the biochemical and molecular aspects, or one that focuses aquatic toxicology in general. You can find resources that cover human and animal toxicology or ecotoxicology in general, but no up-to-date, comprehensive monograph devoted to the effects of chemical pollution on these organisms has been widely available, until now. Filling this void, The Toxicology of Fishes, written by recognized experts, covers toxic responses ranging from reduced reproduction and/or abnormal development, growth, and differentiation. General Principles — Discusses fundamental topics such as the bioavailability of chemicals present in the aquatic environment to fishes, processes governing chemical distribution within these organisms, how fish metabolize organic chemicals, and fundamental mechanisms of chemical toxicity Key Target Systems and Organismal Effects — Describes key target organ systems for chemical impacts in fish, how chemicals produce cancer in these animals, and how fishes can develop resistance to chemical toxicity Methodologies and Applications — Dovers methods for the assessment of chemical effects on fish such as toxicity tests, biomarkers, simulated ecosystems, and modeling approaches and the use of data from such studies in ecological risk assessments Case Studies — Provides examples of how the principles and approaches presented in earlier units are actually deployed in studies Illustrated by case studies of actual, large-scale field investigations, the book reviews the tools used to assess unwanted effects in laboratory model- and wild fish in detail. With 238 illustrations, 70 tables, and 50 equations, this comprehensive monograph presents detailed information on the boiavailability of chemical pollutants, their distribution, metabolism, and excretion in the host fish and mechanisms and sites of toxic responses.

Reviews of Environmental Contamination and Toxicology provides 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.

Most ecological risk assessments consider the risk to individual organisms or organism-level attributes. From a management perspective, however, risks to population-level attributes and processes are often more relevant. Despite many published calls for population risk assessment and the abundance of available scientific research and technical tool

Soil contamination is the presence of man-made chemicals or other alteration in the natural soil environment. This type of contamination typically arises from the rupture of underground storage tanks, application of pesticides, percolation of contaminated surface water to subsurface strata, leaching of wastes from landfills or direct discharge of industrial wastes to the soil. The most common chemicals involved are petroleum hydrocarbons, solvents, pesticides, lead and other heavy metals. This occurrence of this phenomenon is correlated with the degree of industrialisation and intensity of chemical usage. The concern over soil contamination stems primarily from health risks, both of direct contact and from secondary contamination of water supplies. Mapping of contaminated soil sites and the resulting cleanup are time consuming and expensive tasks, requiring extensive amounts of geology, hydrology, chemistry and computer modelling skills. This book presents the latest research from around the world in this field.