The transition from linear to more circular agriculture requires to not only focus on the economic resource use and greenhouse gas reduction, but also to prevent contamination risks. Issues regarding contaminants include chemical, physical and biological hazards that may get (re-)introduced through the agronomic use of waste and product streams. Within this project, an integrated spatially explicit assessment tool will be developed to explore the impact of circular practices on contamination risks in the short and long term. The tool will contribute to a better scientific and societal understanding to what extent circularity is sustainable in view of safety risks.