New report describes that particles in Danish watercourses do not affect the toxicity of insecticides to aquatic organisms

Many pesticides do not dissolve easily in water, but they do bind easily to ultra-small particles in the water. In Danish watercourses, there are such particles that are whirled up into the water and transported by the current.
In the report, "Macroinvertebrates' sensitivity to pyrethroids in freshwater with natural concentrations of particles and organic material - ToxPath", researchers from the University of Copenhagen describe the significance of ultra-small particles in stream water on the toxicity of insecticides to 11 species of stream animals.

Source: mst.dk (Automatically translated from Danish)