Cover Image

PAPERBACK
$49.00



View/Hide Left Panel

6
Recommendations

  • The committee recommends that risk assessors, risk managers, and regulatory agencies should adopt a uniform framework for ecological risk assessment. The framework used should be general and flexible and should facilitate communication between scientists and risk managers. The objective is to systematize the regulatory process, not to specify a particular calculational procedure or data requirement. The extension of the 1983 NRC human health risk assessment framework described in this report and summarized in Figure 3-2 emphasizes the common elements of health risk and ecological risk assessment.

  • The committee recommends that state and federal agencies expand the issue of risk assessment in strategic planning and priority-setting. Those assessments can help agencies to focus their resources on critical environmental problems and uncertainties, and that focus would result in more cost effective and efficient regulatory initiatives. Assessments at this level can be principally judgment-based and need not involve explicit quantification.

  • The committee recommends that agencies support the development of improved methods of risk characterization and consistent guidelines for applying them. Improvement is needed in extrapolation of population and ecosystem effects, expression of risks in terms that are useful for decision-making and understood by the public at large, and evaluation and communication of quantitative and qualitative uncertainties.

  • EPA and other agencies, including state agencies, should institute systematic followup of risk assessments with research and monitoring to



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement



Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 267
RECOMMENDATIONS 267 original typesetting files. Page breaks are true to the original; line lengths, word breaks, heading styles, and other typesetting-specific formatting, however, cannot be About this PDF file: This new digital representation of the original work has been recomposed from XML files created from the original paper book, not from the retained, and some typographic errors may have been accidentally inserted. Please use the print version of this publication as the authoritative version for attribution. 6 Recommendations • The committee recommends that risk assessors, risk managers, and regulatory agencies should adopt a uniform framework for ecological risk assessment. The framework used should be general and flexible and should facilitate communication between scientists and risk managers. The objective is to systematize the regulatory process, not to specify a particular calculational procedure or data requirement. The extension of the 1983 NRC human health risk assessment framework described in this report and summarized in Figure 3-2 emphasizes the common elements of health risk and ecological risk assessment. • The committee recommends that state and federal agencies expand the issue of risk assessment in strategic planning and priority-setting. Those assessments can help agencies to focus their resources on critical environmental problems and uncertainties, and that focus would result in more cost effective and efficient regulatory initiatives. Assessments at this level can be principally judgment-based and need not involve explicit quantification. • The committee recommends that agencies support the development of improved methods of risk characterization and consistent guidelines for applying them. Improvement is needed in extrapolation of population and ecosystem effects, expression of risks in terms that are useful for decision-making and understood by the public at large, and evaluation and communication of quantitative and qualitative uncertainties. • EPA and other agencies, including state agencies, should institute systematic followup of risk assessments with research and monitoring to

OCR for page 267
About this PDF file: This new digital representation of the original work has been recomposed from XML files created from the original paper book, not from the original typesetting files. Page breaks are true to the original; line lengths, word breaks, heading styles, and other typesetting-specific formatting, however, cannot be retained, and some typographic errors may have been accidentally inserted. Please use the print version of this publication as the authoritative version for attribution. RECOMMENDATIONS uncertainties. scientific content of ecological risk assessments. 268 • The committee recommends that EPA and other agencies support outside the agencies themselves to develop technical guidance on the systematic research programs to improve the credibility and utility of determine the accuracy of predictions and resolve remaining ecological risk assessments and draw on scientific expertise available