Posts

Adaptation of the current earthworm field study guideline

Adaptation of the current earthworm field study guideline to harmonise field testing and risk evaluation for earthworms

This project has three aims: (1) to compile and critically evaluate standardised earthworm field studies in order to optimise the current test design, (2) to perform a pilot earthworm field study following the improved test design, and (3) to prepare an OECD draft guidance document. After having discussed different design options within the OECD-GSIG expert […]

Development of an ecotoxicological assessment concept for contaminants based on their bioavailability in soils with different filter und buffer properties

Development of an ecotoxicological assessment concept for contaminants based on their bioavailability in soils

The German Soil Protection Ordinance defines precautionary values for seven metals/metalloids which, if exceeded, indicate that concern for a harmful soil change exists. All precautionary values given in the German Soil Protection Ordinance are based on total concentrations (aqua regia extraction). However, total metal/metalloid concentrations do not represent the actual exposure of soil organisms to […]

Novel processing routes for effective sewage sludge management (ROUTES)

The ROUTES project aimed to evaluate new routes of sewage sludge treatment and management matching the needs of different wastewater origins and different digested sludge utilisations. Elimination of micropollutants was targeted for agricultural sludge application, and minimising the production volume for other sludge disposal routes. Research of ECT in sludge-soil interactions focussed on three aspects: […]

Ecological impacts of land application of biosolids on indigenous soil-dwelling organisms and how it relates to soil function and structure

In a long-term experiment run by Agriculture & Agri-Food Canada, the fate of pharmaceuticals and other substances contained in biosolids are followed after farm-scale application to agricultural land on an experimental field site in Ottawa. In the context of this experiment, ECT follows the development of nematode and enchytraeid communities over several years after the […]