A general framework for the analysis of uncertainty and variability in risk assessment

Rai, S; Krewski, D; Bartlett, S

HERO ID

1060818

Reference Type

Journal Article

Year

1996

Language

English

HERO ID 1060818
In Press No
Year 1996
Title A general framework for the analysis of uncertainty and variability in risk assessment
Authors Rai, S; Krewski, D; Bartlett, S
Journal Human and Ecological Risk Assessment
Volume 2
Issue 4
Page Numbers 972-989
Abstract In recent years, there has been a trend toward the use of probabilistic methods for the analysis of uncertainty and variability in risk assessment. By developing a plausible distribution of risk, it is possible to obtain a more complete characterization of risk than is provided by either ''best estimates'' or ''upper bounds'' on risk. In this article, we propose a general framework for the evaluation of uncertainty and variability in risk assessment. Within this framework, the contributions made by individual variables affecting risk to overall uncertainty and variability can be identified. First-order approximations are developed which avoid the need to resort to Monte Carlo simulation for evaluating uncertainty and variability. A practical application based on a multiplicative risk model for a population of individuals ingesting contaminated fish is presented to illustrate the application of the proposed methods.
Doi 10.1080/10807039609383658
Wosid WOS:A1996WT98700021
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword risk assessment; uncertainty; variability; Monte Carlo; multiplicative risk model