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Uncertainty of measurement or of mean value for the reliable classification of contaminated land
journal contribution
posted on 2023-06-08, 05:14 authored by Katy A Boon, Michael H RamseyClassification of contaminated land is important for risk assessment and so it is vital to understand and quantify all of the uncertainties that are involved in the assessment of contaminated land. This paper uses a case study to compare two methods for assessing the uncertainty in site investigations (uncertainty of individual measurements, including that from sampling, and uncertainty of the mean value of all measurements within an area) and how the different methods affect the decisions made about a site. Using the `uncertainty of the mean value there is shown to be no significant possibility of 'significant harm' under UK guidance at one particular test site, but if you consider the 'uncertainty of the measurements' a significant proportion (50%) of the site is shown to be possibly contaminated. This raises doubts as to whether the current method using `uncertainty of the mean is sufficiently robust, and suggests that `uncertainty of measurement information may be preferable, or at least beneficial when used in conjunction.
History
Publication status
- Published
Journal
Science of the Total EnvironmentISSN
0048-9697Publisher
ElsevierExternal DOI
Issue
2Volume
409Page range
423-429Pages
7.0Department affiliated with
- Evolution, Behaviour and Environment Publications
Notes
Paper was written by Boon, based upon findings a research project, funded by DTI and CL:AIRE, of which Ramsey was the principal investigatorFull text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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