This report highlights waterborne chemical hazards, their pathways into the food chain, their contribution to human exposure, and related emerging issues. It outlines approaches for their assessment and management. While progress has been made on identifying microbial risks in agrifood water sources, limited guidance is available on chemical hazards. This report presents a global approach to identifying and prioritizing food safety risks associated with waterborne chemical hazards. Digital editions of FAO publications are available on the FAO website as part of FAO’s Open Access policy.