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Optimization of Contaminated Land Investigation based on Different Fitness-for-Purpose Criteria  

Jong-Chun Lee (National Institute of Environmental Research)
Michael H. Ramsey (Centre for Environmental Research, University of Sussex, UK)
Publication Information
Economic and Environmental Geology / v.36, no.3, 2003 , pp. 191-200 More about this Journal
Abstract
Investigations on the contaminated lands due to heavy metals from mining activities or hydrocarbons from oil spillage for example, should be planned based on specific fitness-for-purpose criteria(FFP criteria). A FFP criterion is site specific or varies with situation, based on which not only the data quality but also the decision quality can be determined. The limiting factors on the qualities can be, for example, the total budget for the investigation, regulatory guidance or expert's subjective fitness-for-purpose criterion. This paper deals with planning of investigation methods that can satisfy each suggested FFP criterion based on economic factors and the data quality. To this aim, a probabilistic loss function was applied to derive the cost effective investigation method that balances the measurement uncertainty, which estimates the degree of the data quality, with the decision quality. In addition, investigation planning methods when the objectives of investigations do not lie in the classification of the land but simply in producing the estimation of the mean concentration of the contaminant at the site(e.g. for the use in risk assessment), were also suggested. Furthermore, the efficient allocation of resources between sampling and analysis was also devised. These methods were applied to the two contaminated sites in the UK to test the validity of each method.
Keywords
Contaminated land investigation; measurement uncertainty; loss function; sampling method;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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