Health Reports

Residential mobility and multi-domain environmental exposures in Canada: Development of the Residential Mobility Exposome File

by Search for Statistics Canada publications by Toyib Olaniyan, Toyib Olaniyan, ORCID for Toyib Olaniyan

Environmental exposures such as air pollution, extreme temperatures, and limited access to green space are major contributors to health inequities in Canada and globally. Yet these exposures are rarely static: individuals move across neighbourhoods with distinct environmental profiles, while environmental and social conditions evolve over time. Despite this dynamic reality, most population-based environmental epidemiology studies rely on static, multi-pollutant snapshots and single-domain or cross-sectional exposure assignments, limiting insight into how exposure inequalities accumulate and change over the life course. In addition, while most environmental epidemiological studies capture health effects related to an individual’s exposure—often from a single domain—a growing interest is the synergy between climatic extremes and the built or natural environments that modify those exposures. Integrating these domains is essential for a true exposome framework, yet the complexity of tracking such multifaceted, time-varying interactions has historically limited national-scale analyses.