Integrating geophysical data for mapping the contamination of industrial sites by polycyclic aromatic hydrocarbons: A geostatistical approach
- Geostock, Rueil-Malmaison (France)
- FSS Consultants SA, Geneva (Switzerland)
- FSS International R and D, Chaville (France)
A case study is presented of building a map showing the probability that the concentration in polycyclic aromatic hydrocarbon (PAH) exceeds a critical threshold. This assessment is based on existing PAH sample data (direct information) and on an electrical resistivity survey (indirect information). Simulated annealing is used to build a model of the range of possible values for PAH concentrations and of the bivariate relationship between PAH concentrations and electrical resistivity. The geostatistical technique of simple indicator kriging is then used, together with the probabilistic model, to infer, at each node of a grid, the range of possible values which the PAH concentration can take. The risk map is then extracted for this characterization of the local uncertainty. The difference between this risk map and a traditional iso-concentration map is then discussed in terms of decision-making.
- OSTI ID:
- 495396
- Report Number(s):
- CONF-950159-; ISBN 0-8031-2414-7; TRN: IM9731%%89
- Resource Relation:
- Conference: Geostatistics for environmental and geotechnical applications, Phoenix, AZ (United States), 26-27 Jan 1995; Other Information: PBD: 1996; Related Information: Is Part Of Geostatistics for environmental and geotechnical applications; Rouhani, S.; Srivastava, R.M.; Desbarats, A.J.; Cromer, M.V.; Johnson, A.I. [eds.]; PB: [290] p.; ASTM special technical publication, 1283
- Country of Publication:
- United States
- Language:
- English
Similar Records
Determination of polycyclic aromatic hydrocarbons in contaminated water and soil samples by immunological and chromatographic methods
Estimating release of polycyclic aromatic hydrocarbons from coal-tar contaminated soil at manufactured gas plant sites. Final report