What are the Dutch Target, Intervention, and Serious values?
A. The Dutch values are all derived with environmental harmonization in mind, meaning that analyte concentrations in any given matrix are set such that they should not contaminate another matrix above risk-based values for that matrix. These standards allow for the definition of clean (target values), slightly contaminated, or seriously contaminated (intervention values). Recommendations for these risk-based standards are developed within one agency, and then the regulatory standards, usually based on those recommendations, are set by another. When data were not sufficient to support for full intervention values, recommendations of values representing serious contamination levels have been reported. For some analytes, where recommendations have not progressed through the regulatory process, the Serious Risk Concentration (SRCeco) is reported. The target values indicate the level at which there is a sustainable quality. In terms of curative policy this means that the target values indic