Time and land-use as interpretation keys for the evaluation of different remedial scenarios
TNO Milieu, Energie en Procesinnovatie
di Mauro, C.
van Teunenbroek, T.
Harder, W. (editor)
Arendt, F. (editor)
In the regulated community there is often concern as to whether mass removal at a contaminated site actually reduces risk, or whether the small risk reductions achieved warrant the large costs incurred. Decision-makers have to select feasible solutions based on the required risk reduction, costs of the remediation and environmental impact. Thus, a correct risk evaluation has to assess exposure according the required time frame and the characteristics of the process. In order to assess more accurately the affects of time and space in risk assessment, a new framework for quantifying short/long-term risk reduction was developed. In particular the research study highlights the following two innovative aspects: 1. A new approach for risk assessment, related to long-term in-situ remediation activities, and according to the land use and future land planning. 2. An analysis and evaluation of the overall costs related to remediation activities and redesign of the land use. The paper reports a study case of a site contaminated by chlorinated solvents. Different intervention scenarios were investigated in terms of technological control of the plume, potential risk, land-use redesign and costs.
To reference this document use:
Human health risk
Thomas Telford Publishing, London
Consoil 2000 : 7th international FZK/TNO conference on contaminated soil, organized by Research Centre Karlsruhe (KZK, D), TNO, in cooperation with UFZ Leipzig, 18-22 Sept 2000. Vol. 1, 117-124