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 application of biosolids. In addition, the feeding activity of soil organisms is measured as a functional endpoint by the bait lamina method. The results of this long-term study are expected to enable a better assessment of the impact of biosolids application on soil organisms, particularly in interrelation with the chemically determined fate of substances contained in the biosolids also with regard to potential toxic long-term effects.