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The science of ecotoxicology and the practice of ecological risk assessment are evolving rapidly. Ecotoxicology as a subject area came into prominence in the 1960s after the publication of Rachel Carson's book on the impact of pesticides on the environment. The rise of public and scientific concern for the effects of chemical pollutants on the environment in the 1960s and 1970s led to the development of the discipline of ecotoxicology, a science that takes into account the effects of chemicals in the context of ecology. Until the early 1980s, in spite of public concern and interest among scientists, the assessment of ecological risks associated with natural or synthetic pollutants was not considered a priority issue by most government. However, as the years passed, a better understanding of the importance of ecotoxicology emerged and with it, in some countries, the progressive formalization of an ecological risk assessment process. Ecological risk assessment is a conceptual tool for organizing and analyzing data and information to evaluate the likelihood that one or more stressors are causing or will cause adverse ecological effects. Ecological risk assessment allows risk managers to consider available scientific information when selecting a course of action, in addition to other factors that may affect their decision (e. g. , social, legal, political, or economic). Ecological risk assessment includes three phases (problem formulation, analysis, and risk characterization).
This volume presents concepts, approaches, case studies, and applications of the cutting-edge technologies used to develop and implement an effective and innovative TMDL program. Contains valuable information for anyone involved with pollution control, including state and federal water quality agencies, consulting engineering firms, publicly owned treatment works, environmental biologists and chemists, and public health officials.
Based on the Management Standards, this new guide will help you, your employees and their representatives manage the issue sensibly and minimise the impact of work-related stress on your business. It might also help you improve how your organisation performs.
With a goal of introducing science into the decision-making process, 60 individuals representing government, industry, academia, and nongovernmental organisations from eight different countries participated in a Society of Environmental Toxicology and Chemistry (SETAC) Pellston Workshop to address the relationship between ecological assessment and ecological risk assessment and their role in aquatic resources. A result of this workshop, this book presents guidelines for effectively conducting and communicating ecological assessments. Through successful integration of economic, social, and behavioural perspectives and approaches, ecological assessments can ultimately produce sound decisions to protect and manage our aquatic resources.