Ecotoxicology, Ecological Risk Assessment and Multiple Stressors
Title | Ecotoxicology, Ecological Risk Assessment and Multiple Stressors PDF eBook |
Author | Gerassimos Arapis |
Publisher | Springer Science & Business Media |
Pages | 376 |
Release | 2006-02-09 |
Genre | Science |
ISBN | 1402044763 |
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).
Multiple Stressors in Ecological Risk and Impact Assessment
Title | Multiple Stressors in Ecological Risk and Impact Assessment PDF eBook |
Author | Jeffery Allen Foran |
Publisher | Setac Press |
Pages | 124 |
Release | 1999 |
Genre | Science |
ISBN |
Multiple Stresses in Ecosystems
Title | Multiple Stresses in Ecosystems PDF eBook |
Author | Jr. Cech |
Publisher | CRC Press |
Pages | 224 |
Release | 2017-11-01 |
Genre | Science |
ISBN | 1351429655 |
Ecotoxicology is the evaluation of toxic effects within the environment, typically within one specific ecosystem, like a forest, stream, or lake. For years now, ecotoxicological studies have tended to focus on one toxicant at a time. But that isn't how an ecosystem encounters toxicants (or stresses): there may be several elements at work in the air, several more in the water, and still more already within the soil of any given ecosystem, and all have some level of toxic influence on that ecosystem. Multiple Stresses in Ecosystems presents the state-of-the-art in determining the effects of these multiple impacts upon ecosystems. Resulting from a vanguard conference originally held in 1993 at UC Davis, this new work is divided into three sections that present methodolgies for assessing the health of an ecosystem; the effects of multiple toxicological impacts upon an ecosystem, and which tools are worth using to assess these dangers. Environmental scientists, chemists, toxicologists, risk analysts, and probably the entire membership of SETAC will find need for this book, as will wetlands scientists, ecologists, and research biologists.
Regional Scale Ecological Risk Assessment
Title | Regional Scale Ecological Risk Assessment PDF eBook |
Author | Wayne G. Landis |
Publisher | CRC Press |
Pages | 336 |
Release | 2004-11-15 |
Genre | Science |
ISBN | 9780203498354 |
As debates over how relative risk can be used to shape landscape-scale environmental management intensify, Regional-Scale Risk Assessment demonstrates the capabilities of RRM using nine case studies in the Pacific Northwest, Pennsylvania, Brazil, and Tasmania. The authors use a process of ranking and filters to interrelate different kinds of risks
Multiple Stressors: A Challenge for the Future
Title | Multiple Stressors: A Challenge for the Future PDF eBook |
Author | Carmel Mothersill |
Publisher | Springer Science & Business Media |
Pages | 483 |
Release | 2007-08-20 |
Genre | Science |
ISBN | 1402063334 |
Ecotoxiclogical risk from multiple stressors covers any situation where org- isms are exposed to a combination of environmental stressors. These include physical and chemical pollutants as well as other stressors such as parasites and environmental impact (e. g. , climate change or habitat loss). The combi- tion of stressors can result in increased risk to organisms (either additive or synergistic effects) or decreased effects (protective or antagonistic effects). The multiple stressor challenge is an international, multi-disciplinary problem requiring an international, multi-disciplinary approach. The c- rent approach to multiple stressors is to examine one stressor at a time and assume additivity. Little work has been done on combinations of stressors such that potential interactions can be determined. The problem is very complex. Multiple stressors pose a whole spectrum of challenges that range from basic science to regulation, policy and gove- ance. The challenges raise fundamental questions about our understanding of the basic biological response to stressors, as well as the implications of those uncertainties in environmental risk assessment and management. In addition to the great breadth, there is also great depth in the research ch- lenges, largely due to the complexity of the issues. From a basic science point of view, many of the mechanisms and processes under investigation are at the cutting edge of science — involving new paradigms such as genomic ins- bility and bystander effects.
Multiple Stresses in Ecosystems
Title | Multiple Stresses in Ecosystems PDF eBook |
Author | Jr. Cech |
Publisher | Routledge |
Pages | 220 |
Release | 2017-11-01 |
Genre | Science |
ISBN | 1351429647 |
Ecotoxicology is the evaluation of toxic effects within the environment, typically within one specific ecosystem, like a forest, stream, or lake. For years now, ecotoxicological studies have tended to focus on one toxicant at a time. But that isn't how an ecosystem encounters toxicants (or stresses): there may be several elements at work in the air, several more in the water, and still more already within the soil of any given ecosystem, and all have some level of toxic influence on that ecosystem. Multiple Stresses in Ecosystems presents the state-of-the-art in determining the effects of these multiple impacts upon ecosystems. Resulting from a vanguard conference originally held in 1993 at UC Davis, this new work is divided into three sections that present methodolgies for assessing the health of an ecosystem; the effects of multiple toxicological impacts upon an ecosystem, and which tools are worth using to assess these dangers. Environmental scientists, chemists, toxicologists, risk analysts, and probably the entire membership of SETAC will find need for this book, as will wetlands scientists, ecologists, and research biologists.
General Principles of Ecological Risk Assessment
Title | General Principles of Ecological Risk Assessment PDF eBook |
Author | Marco Vighi |
Publisher | Cambridge Scholars Publishing |
Pages | 640 |
Release | 2024-05-22 |
Genre | Nature |
ISBN | 1036404226 |
The book provides a comprehensive and up-to-date overview of the most modern concepts and tools needed to perform prospective and retrospective ecological risk assessments of environmental stressors, and will therefore be useful for students, teachers, scientists, regulators, and professionals in environmental consulting. Experimental methods and predictive theoretical approaches are described to evaluate and estimate the exposure of ecosystems to environmental stressors and to investigate their effects on different hierarchical levels of ecological organization (individuals, populations, communities, ecosystems). Specific sections are dedicated to the persistence and bioavailability of contaminants, bioaccumulation models, and the mechanisms of global pollution. Risk assessment procedures for the most relevant classes of traditional and emerging stressors, including physical agents, are described in detail in specific sections. Finally, regulatory instruments and public perception of risk are discussed.