 | Wayne S. Davis, Thomas P. Simon - 1995 - عدد الصفحات: 434
...restoration that may be required. 3.3 Ecological Risk Assessment Ecological risk assessment (ERA) is a process that evaluates the likelihood that adverse...occurring, as a result of exposure to one or more stressors (USEPA 1992b). Simply, ERA is "based upon the probability of harm to ecological integrity" (Cairns... | |
 | Katherine Dunster - 2011 - عدد الصفحات: 380
...reserves, and the system continues to evolve. See also Research Natural Areas. ECOLOGICAL RISK ASSESSMENT A process that evaluates the likelihood that adverse...as a result of exposure to one or more Stressors. Ecological risk assessment may evaluate one or more Stressors and ecological components. ECOLOGICAL... | |
 | 1997 - عدد الصفحات: 88
...the terms. 1 5 Ecological risk assessment is a process that evaluates the likelihood that adverse 1 6 ecological effects may occur or are occurring as a result of exposure to one or more stressors. 17 The risk may be expressed in a variety of ways, both quantitative and qualitative. The 1 8 Framework... | |
 | Jack E. Daugherty - 1997 - عدد الصفحات: 464
...ecological risk assessment is: The process that evaluates the likelihood that adverse ecological effeets may occur or are occurring as a result of exposure to one or more stressors. — (US EPA, 1992a) Several terms within this definition require further explanation. Likelihood: Descriptions... | |
 | National Research Council, Division on Earth and Life Studies, Commission on Geosciences, Environment and Resources, Committee on Watershed Management - 1999 - عدد الصفحات: 333
...social, legal or economic) in selecting a course of action. "Specifically, ecological risk assessment evaluates the likelihood that adverse ecological effects...as a result of exposure to one or more stressors" (EPA, 1992). In this definition, stressors can be chemical, physical, or biological, and can affect... | |
 | K.M. Scow, Graham E. Fogg, David E. Hinton, Michael L. Johnson - 2019 - عدد الصفحات: 386
...being suggested as a way to address this wide array of ecological problems. Ecological risk assessment evaluates the likelihood that adverse ecological effects...are occurring as a result of exposure to one or more stressors.1 Ecological risk assessment includes three primary phases: problem formulation, analysis,... | |
 | James E. Kilduff - 2000 - عدد الصفحات: 944
...these features and can be modified for other site-specific case studies. Ecological risk assessment is a process that evaluates the likelihood that adverse...occurring as a result of exposure to one or more stressors [1]. The process is used to systematically evaluate and organize data, information, assumptions, and... | |
 | Glenn W. Suter II, Rebecca A. Efroymson, Bradley E. Sample, Daniel S. Jones - 2000 - عدد الصفحات: 466
...dredge spoil: Sediments dredged from a water body and deposited as waste to ecological risk assessment: A process that evaluates the likelihood that adverse...are occurring as a result of exposure to one or more agents. ecosystem: The functional system consisting of the biotic community and abiotic environment... | |
 | United States. General Accounting Office - 2001 - عدد الصفحات: 236
...affected the color, taste, or odor of a water source. By EPA's definition, ecological risk assessment is a process that evaluates the likelihood that adverse...as a result of exposure to one or more "stressors. " In other words, ecological risk assessments may be prospective or retrospective, and, in many cases,... | |
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Ecological risk assessment is a process that evaluates the likelihood that adverse ecological effects may occur or are occurring as a result of exposure to one or more stressors [1]. 
