This research project studies how environmental exposures, including natural environments, air pollution and noise, influence health and development. The project focuses on prenatal, early childhood and adult exposure to surrounding urban environments in relation to a wide range of health indicators. It includes an analysis of potential differences in health associations depending on different types of natural environments (e.g., vegetation and water) and forms of human-nature contact (access versus exposure). It also includes mediation analyses to explore potential indirect health benefits of nature exposure through reduction of air pollution and noise.