Intervention Values are generic soil quality standards used to classify historically contaminated soils, sediments and groundwater (i.e. before 1987) as seriously contaminated in the framework of the Dutch Soil Protection Act. In 1994 Intervention Values were published for 70 (groups of) compounds. Intervention values are based on potential risks for both human health and ecosystems. Human toxicological Serious Risk Concentrations for soil, sediment and groundwater (SRChuman) are determined using the human exposure model CSOIL. This report presents an evaluation and revision of the CSOIL parameter set as part of the technical evaluation of the Intervention Values. The evaluation of the CSOIL parameter set comprises the physicochemical data of all compounds for the first series, as well as the soil, site and exposure parameters. The evaluation results in a revised CSOIL data set with an improved underpinning and traceability of the data set. Another improvement concerns the revision of the soil-water partition coefficients. The report also provides insight into the impact of the revised data set on the SRChuman and resulted in a better insight into the uncertainties and variation of the model input parameters.
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