Risk Assessment Worksheet

Topics: Risk assessment, Assessment, Pollution Pages: 3 (833 words) Published: January 19, 2015


Risk Assessment Worksheet
ENV/420
December 15, 2014
Mark Leeper
Risk Assessment Worksheet
The following paper discusses the risk assessment process while explaining the framework, how each phase interrelates, and why the framework is so important in assisting with the risk assessment process. The paper will also discuss some of the innovations that have occurred over the last several years. Ecological Risk Assessment Framework

An ecological risk assessment is a process that analyzes potential adverse effects that are occurring or may occur as a consequence of exposure to one or more chemical, biological or physical stressors (U.S. Environmental Protection Agency, 1998).  The framework for an ecological risk assessment is an important process because it provides a way to develop, organize, and present information that is scientifically pertinent in decisions regarding the environment (U.S. EPA, n.d.). This information enables the public and decision-makers to make better educated decisions regarding the administration and management of ecological resources (U.S. EPA, n.d.). The framework portrays a sequential process but often it is used as a guideline and involves a lot of interaction between the steps. The framework is usually iterative and nonlinear. Once in the latter phases of the framework if more information is gained or learned it may be necessary to go back to the earlier phases and either gather more evidence or reevaluate information obtained so that the information and data obtained truly supports the end results (Paustenbach, 2002). The four main topics of an ecological risk assessment are problem formulation, characterization of exposure, characterization of ecological effects, and risk characterization. Problem formulation begins with developing and evaluating the initial questions regarding the occurrences of ecological effects and why or how they might occur. The problem is then evaluated and steps are developed to analyze...

References: Paustenbach, D. J. (2002). Human and ecological risk assessment. New York, NY: John Wiley and Sons
U.S. Environmental Protection Agency. (1998). Guidelines for Ecological Risk Assessment. Retrieved from http://www.epa.gov/raf/publications/pdfs/ECOTXTBX.PDF
 U.S. EPA. (n.d.). Ecological Risk Assessment. Retrieved from http://www.epa.gov/superfund/programs/nrd/era.htm
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