Improved strategy to assess chemical persistence at the water-sediment interface

The environmental fate of a compound is determined by transformation and distribution processes, which are strongly dependent on the specific environmental conditions. Biodegradability of chemicals in different environmental compartments is one of the major determinants of their environmental fate and therefore plays a crucial role in regulatory decision-making. Simulation studies according to OECD 308 (aquatic […]

application of biosolids to land

Ecological impacts of land application of biosolids on soil-dwelling organisms

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

Development of a web-based pesticide risk assessment module for below-ground invertebrates

The overall objective of this project (WEBFRAM-5) was to investigate whether the application of probabilistic methods of uncertainty analysis can improve the risk assessment for effects of pesticides on below-ground invertebrates. The project addressed this objective in two ways: First, analysis of existing pesticide effects data was used to examine which methods of uncertainty analysis […]