DANSK DSF/ISO/FDIS 19204 PDF

This International Standard describes in a general way the application of the soil quality TRIAD approach for the site-specific ecological risk assessment of contaminated soils. In detail it is tried to present in a transparent way three lines of evidence (chemistry, ecotoxicology and ecology) which together allow an efficient, ecologically robust but also practical risk assessment of contaminated soils. This procedure can also be applicable to other stress factors, such as acidification, soil compaction, salinization, loss of soil organic substance, and erosion. However, so far no experience has been gained with these other applications. Therefore, this document focuses on soils contaminated by chemicals. In view of the nature of this International Standard the investigation procedure is described on a general level. It does not contain details of technical procedures for the actual assessment. However, the document includes references relating to technical standards (e.g. ISO 15799, ISO 17616) which are useful for the actual performance of the three lines of evidence. In ecological risk assessment, the effects of soil contamination on the ecosystem are related to the intended land use and the requirements that this use sets for properly functioning soil. This International Standard describes the basic steps relating to a coherent tool for a site-specific risk assessment with opportunities to work out site-specific details. The International Standard can also be used for the evaluation of clean-up, remediation or management measures. NOTE 1 – This International Standard starts when it has already been decided that an ecological risk assessment at a given site has to be performed. In other words: the practical performance of the soil quality TRIAD and the evaluation of the individual test results will be described. Thus, nothing will be said about decisions whether (and if yes, how) the results of the assessment are included in soil management measures or not. NOTE 2 – The TRIAD approach can be used for different parts of the environment, but this document focuses on the soil compartment. It is recommended to prepare comparable documents for other environmental compartments as well (e.g. the terrestrial aboveground compartment) in order to perform a complete site assessment, based on the same principles and processes.