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- W3201224061 abstract "Goal and Scope. In the German Federal Soil Protection and Contaminated Sites Ordinance there are no ecotoxicological trigger values for the protection of soil as a habitat for soil organisms. The objective of this study was to derive preliminary trigger values for the habitat function of soils. This was done by collecting data on the impact of priority pollutants on soil organisms and plants followed by the parallel use of the Factorial Application Method (FAME) and Distribution Based Extrapolation (DIBAEX) and a final verification of the plausibility of the calculated trigger values by means of an ecotoxicological test battery. Methods. Data on the effects of pollutants on soil organisms and plants were recorded in a specific database (Soil Value). Subsequently, we derived so-called ''working trigger values'' using the extrapolation methods FAME (factorial application method) and DIBAEX (distribution based extrapolation). In the second phase of the project, we verified experimentally the plausibility of these values by means of an ecotoxicological test battery. Test substrate was a sandy soil with low sorption capacity and organic carbon content which was mixed with fresh pollutants (e.g. heavy metal salts) and polluted soil material from contaminated sites (aged contamination), respectively. Organisms tested were microorganisms, plants, earthworms, springtails and nematodes. Results and Conclusions. We calculated working trigger values for 12 pollutants based on 900 datasets compiled in the data base. The lavoratory investigations showed the freshly added contaminants to be less strongly adsorbed to the soil than those added by the use of contaminated soil material. Nevertheless, aged contaminations displayed often the same inhibitive effects as the freshly added chemicals. The results achieved in the second phase of the project were also recorded in the Soil-Value database. Based on the new data set, final trigger values were derived for the experimentally tested substances. Outlook. The procedure described in this contribution exemplarily for copper can be used for the derivation of recommended trigger values for the pathway soil => soil organisms. Besides copper, preliminary trigger values were derived for zinc, mercury, lead and HCH. (orig.)" @default.
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- W3201224061 date "2004-07-01" @default.
- W3201224061 modified "2023-09-23" @default.
- W3201224061 title "Development of preliminary trigger values for selected pollutants for the protection of soils as a habitat for soil organisms; Entwicklungen von Pruefwertempfehlungen fuer ausgewaehlte Schadstoffe zum Schutz des Bodens als Lebensraum fuer Bodenorganismen" @default.
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