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Science and Judgment in Risk Assessment (1994)
Board on Environmental Studies and Toxicology (BEST)

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. "Executive Summary." Science and Judgment in Risk Assessment. Washington, DC: The National Academies Press, 1994.

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justification for its current defaults and establish a procedure that permits departures from the default options.

When EPA reports estimates of risk to decision-makers and the public, it should present not only point estimates of risk, but also the sources and magnitudes of uncertainty associated with these estimates.

Risk assessment is a set of tools, not an end in itself. The limited resources available should be spent to generate information that helps risk managers to choose the best possible course of action among the available options.

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15
Front Matter (R1-R16)
Executive Summary (1-15)
1 Introduction (16-22)
Part I Current Approaches to Risk Assessment: 2 Risk Assessment and its Social and Regulatory Contexts (23-42)
3 Exposure Assessment (43-55)
4 Assessment of Toxicity (56-67)
5 Risk Characterization (68-78)
Part II Strategies for Improving Risk Assessment: 6 Default Options (79-105)
7 Models, Methods, and Data (106-143)
8 Data Needs (144-159)
9 Uncertainty (160-187)
10 Variability (188-223)
11 Aggregation (224-242)
Part III Implementation of Findings: 12 Implementation (243-268)
References (269-286)
Appendix A: Risk Assessment Methodologies: EPA (287-350)
Appendix B: EPA Memorandum from Henry Habicht (351-374)
Appendix C: Calculation and Modeling of Exposure (375-382)
Appendix D: Working Paper for Considering Draft Revisions to the U.S. EPA Guidelines for Cancer Risk Assessment (383-448)
Appendix E: Use of Pharmacokinetics to Extrapolate from Animal Data to Humans (449-452)
Appendix F: Uncertainty Analysis of Health Risk Estimates (453-478)
Appendix G: Improvement in Human Health Risk Assessment Utilizing Site- and Chemical-Specific Information: A Case Study (479-502)
Appendix H-1: Some Definitional Concerns About Variability (503-504)
Appendix H-2: Individual Susceptibility Factors (505-514)
Appendix I: Aggregation (515-536)
Appendix J: A Tiered Modeling Approach for Assessing the Risks Due to Sources of Hazardous Air Pollutants (537-582)
Appendix K: Science Advisory Board Memorandum on the Integrated Risk Information System and EPA Response (583-590)
Appendix L: Development of Data Used in Risk Assessment (591-598)
Appendix M: Charge to the Committee (599-600)
Appendix N-1: The Case for (601-628)
Appendix N-2: Making Full Use of Scientific Information in Risk Assessment (629-640)
Index (641-652)