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Mapping cadmium concentration and the risk of exceeding a local sanitation threshold using indicator geostatistics

Jaleh Mohammadi UGent, Marc Van Meirvenne UGent and P Goovaerts (1997) QUANTITATIVE GEOLOGY AND GEOSTATISTICS. 9. p.327-337
abstract
In the north-east of Belgium an extensive area has been contaminated with cadmium as a 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.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
QUANTITATIVE GEOLOGY AND GEOSTATISTICS
Quant. Geol. Geostat.
editor
R Froidevaux, J Gomez Hernandez and A Soares
volume
9
issue title
GEOENV I : geostatistics for environmental applications
pages
327 - 337
publisher
Kluwer Academic
place of publication
Dordrecht, The Netherlands
conference name
1st European Conference on Geostatistics for Environmental Applications (GeoENV I)
conference location
Lisbon, Portugal
conference start
1996-11-18
conference end
1996-11-19
Web of Science type
Proceedings Paper
ISBN
0-7923-4590-8
language
English
UGent publication?
yes
classification
P1
id
398980
handle
http://hdl.handle.net/1854/LU-398980
date created
2008-05-14 16:21:00
date last changed
2011-04-04 13:03:26
@inproceedings{398980,
  abstract     = {In the north-east of Belgium an extensive area has been contaminated with cadmium as a 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.},
  author       = {Mohammadi, Jaleh and Van Meirvenne, Marc and Goovaerts, P},
  booktitle    = {QUANTITATIVE GEOLOGY AND GEOSTATISTICS},
  editor       = {Froidevaux, R and Gomez Hernandez, J and Soares, A},
  isbn         = {0-7923-4590-8},
  language     = {eng},
  location     = {Lisbon, Portugal},
  pages        = {327--337},
  publisher    = {Kluwer Academic},
  title        = {Mapping cadmium concentration and the risk of exceeding a local sanitation threshold using indicator geostatistics},
  volume       = {9},
  year         = {1997},
}

Chicago
Mohammadi, Jaleh, Marc Van Meirvenne, and P Goovaerts. 1997. “Mapping Cadmium Concentration and the Risk of Exceeding a Local Sanitation Threshold Using Indicator Geostatistics.” In Quantitative Geology and Geostatistics, ed. R Froidevaux, J Gomez Hernandez, and A Soares, 9:327–337. Dordrecht, The Netherlands: Kluwer Academic.
APA
Mohammadi, J., Van Meirvenne, M., & Goovaerts, P. (1997). Mapping cadmium concentration and the risk of exceeding a local sanitation threshold using indicator geostatistics. In R. Froidevaux, J. Gomez Hernandez, & A. Soares (Eds.), QUANTITATIVE GEOLOGY AND GEOSTATISTICS (Vol. 9, pp. 327–337). Presented at the 1st European Conference on Geostatistics for Environmental Applications (GeoENV I), Dordrecht, The Netherlands: Kluwer Academic.
Vancouver
1.
Mohammadi J, Van Meirvenne M, Goovaerts P. Mapping cadmium concentration and the risk of exceeding a local sanitation threshold using indicator geostatistics. In: Froidevaux R, Gomez Hernandez J, Soares A, editors. QUANTITATIVE GEOLOGY AND GEOSTATISTICS. Dordrecht, The Netherlands: Kluwer Academic; 1997. p. 327–37.
MLA
Mohammadi, Jaleh, Marc Van Meirvenne, and P Goovaerts. “Mapping Cadmium Concentration and the Risk of Exceeding a Local Sanitation Threshold Using Indicator Geostatistics.” Quantitative Geology and Geostatistics. Ed. R Froidevaux, J Gomez Hernandez, & A Soares. Vol. 9. Dordrecht, The Netherlands: Kluwer Academic, 1997. 327–337. Print.