By Michelle Marcus and Rosie Mueller JEEM May 6, 2024 DOI: 10.1016/j.jeem.2024.102987 Our understanding of individuals’ response to information about unregulated contaminants is limited. We leverage the highly publicized social discovery of unregulated PFAS (per- and polyfluoroalkyl substances) contamination in public drinking water to study the impact of information about unregulated contaminants on housing prices.