Abstract
In the north-east of Belgium an extensive area has been contaminated with cadmium as a result of past industrial activities. The performances of two geostatistical algorithms (ordinary kriging with a global trend model and indicator kriging) for estimating the topsoil Cd content at 276 test locations are compared. Better re-estimation scores are obtained for the “E-type” estimate, that is the mean of the conditional cumulative distribution function provided by indicator kriging. Besides an estimate of Cd content, indicator kriging allows one to assess the probability to exceed the sanitation threshold for vegetable gardens (most risky land use). That threshold varies across the region depending on local clay and organic matter contents. The comparison of estimated probabilities with actual Cd concentrations at test locations indicates a good assessment of the risk by indicator kriging.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Chaney, R.L. (1990) Twenty years of land application research, part I, BioCycle 31, 54–59.
Deutsch, C.V. (1996) Direct assessment of local accuracy and precision. In Geostatistics Wollongong 96 (ed. E. Baafi ), Kluwer Academic Publisher. In press.
Deutsch. C.V., and Journel, A.G. (1992) GSLIB Geostatistical Software Library and User’s Guide, Oxford University Press, New York.
Goovaerts, P. (1994) Comparative performance of indicator algorithms for modeling conditional probability distribution functions, Mathematical Geology 26, 389–411.
Journel, A.G. (1983) Non-parametric estimation of spatial distributions, Mathematical Geology 15, 445–468. Joumel, A.G. (1984) New ways of assessing spatial distributions of pollutants. In: G. Schweitzer (Ed.), Environmental Sampling for Hazardous Wastes, Amer. Chem. Soc. Press, pp. 109–118..
Meirvenne, M., Vercauteren, F., Hofman, G., and Ide, G. (1993) Geostatistical analysis of the cadmium pollution in north-west Limburg, Belgium. Biometrie et Praximetrie 33, 45–56.
Vlaamse Gemeenschap (1996) Besluit van de Vlaamse regering houdende vaststelling van het Vlaams reglement betreffende de bodemsanering, Belgisch Staatsblad, 27.03. 1996: 7018–7058.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1997 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Mohammadi, J., van Meirvenne, M., Goovaerts, P. (1997). Mapping Cadmium Concentration and the Risk of Exceeding a Local Sanitation Threshold Using Indicator Geostatistics. In: Soares, A., Gómez-Hernandez, J., Froidevaux, R. (eds) geoENV I — Geostatistics for Environmental Applications. Quantitative Geology and Geostatistics, vol 9. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1675-8_27
Download citation
DOI: https://doi.org/10.1007/978-94-017-1675-8_27
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-4861-5
Online ISBN: 978-94-017-1675-8
eBook Packages: Springer Book Archive