Navigating the CBD: How Urban Risk Environment Shapes Daily Life for People Who Use Drugs in Edmonton's Central Business District.

Public drug use in urban central business districts (CBDs) presents an urgent public health challenge in Canada. People who use drugs (PWUD) in CBDs navigate intersecting risks related to criminalization, stigma, hostile architecture, urban redevelopment, and limited access to essential services-factors that compound health disparities and increase morbidity and mortality. Yet CBDs also function as sites of informal social networks, mutual aid, and adaptive survival strategies that, while precarious, constitute critical resources for daily safety and belonging. This focused ethnographic study, conducted in Edmonton's CBD between July 2022 and September 2023, draws on 25 semi-structured interviews and over 170 h of embedded field immersion to investigate how intersecting environmental forces shape the daily lives of PWUD. Using Collins et al.'s (2019) intersectional risk environment framework and Duff's (2009) enabling environment concept, we analyzed how physical, social, economic, and policy environments-operating across micro and macro levels-produce differential harms and, simultaneously, generate precarious yet meaningful sites of connection, resourcefulness, and collective care. Findings reveal how displacement, over-policing, and gentrification-driven spatial change coexist with participants' place-based belonging, moral economies of reciprocity, and culturally grounded survival knowledge. We argue that effective interventions must account for this co-production of risk and enabling conditions and that urban governance must center the voices of those most structurally affected.