PROLAND addresses the sources of plastic pollution in agricultural soils. In the project, four important sources that may add plastic pollution to farm soils will be investigated: sewage sludge, compost and biogas digestate, the use of agricultural plastics, and atmospheric deposition. Concentrations of plastic, the types of plastic polymers, and plastic-associated chemicals will be quantified in agricultural soils from different areas of Norway. Assessments of what risks the microplastics, plastic additives, and pesticides may pose to soil ecosystems will be considered. Various exposure and mobility studies will be carried out in the laboratory.