Qualitative vs. quantitative risk evaluation in contaminated sites management

Decision analysis for contaminated sites management is generally carried out through a traditional engineering/economic point of view. However, new advances in risk assessment (e.g. probabilistic risk assessment), and the growing recognition and awareness of the importance of ’soft’, non-statistical, informal data in the decision-making process, require decision analysis methodologies that are capable of accommodating non-technical and politically biased qualitative information.

The experience gained through two decades of effort to restore contaminated locations to their native conditions showed that complete cleanup of groundwater may not be possible using the existing technologies. Although some sites can be restored to a minimum contaminant level, it is understood that this can be achieved only under favorable hydrogeological conditions, limited extent of contamination, and/or exceptionally active natural attenuation.



Copyright: © Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben
Quelle: DepoTech 2006: Abstracts in English (November 2006)
Seiten: 1
Preis: € 0,00
Autor: Nora Szarka
J. Wolfbauer
Dr. Alberto Bezama
 
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