Uncertainty in Environmental Risk Assessment

Autor: J. S. Jaworska, T. S. Bridges
Rok vydání: 2001
Předmět:
Zdroj: Assessment and Management of Environmental Risks ISBN: 9781402000249
Popis: Judgements about whether a specific set of human actions will or will not result in adverse impacts on the environment involve varying degrees of uncertainty depending on the scope and complexity of problem and the environmental processes involved. Risk analysis is a systematic process for identifying the probability or likelihood for an adverse event or condition. However, estimating the probability of event “x” to be 20% is not itself a statement about the degree of confidence or uncertainty associated with that estimate (e.g., 20%±5%). Uncertainty analysis represents a collection of qualitative and quantitative methods that are applied to assign a measure of confidence in risk estimates produced during human health or ecological risk assessments. The purpose of this working group was to reach conclusions about the need for uncertainty analysis in environmental assessment and management and to make recommendations to guide its application.
Databáze: OpenAIRE