Environmental epidemiology studies the effects of hazards in the environment on health and wellbeing in the human population. The unit takes an eco-social approach and broadly defines the environment as anything external to the person including the physical, social, psychological and aesthetic environment and their interactions. Building on students own knowledge of the environment and environmental hazards related to air, water, soil, climate, and the built environment the unit will cover study designs and methods of exposure assessment and statistical analysis used to assess environmental health risks. This unit will provide students with a practical understanding of the research methods used to assess the exposure-response relationship between environmental hazards and health outcomes. Students will be introduced to data analysis and visualisation skills and software including spatial data involving Geographic Information Systems (GIS) for mapping, as well as statistical analysis of environmental exposures and health outcomes using the R Statistical Software. While the unit has a quantitative data focus it does not require high level technical skills as the aim is to give students a conceptual understanding of environmental epidemiology. The unit will also explore future directions in the field of environmental epidemiology and students will also learn about the importance of environmental epidemiology to the Planetary Health framework for assessing global environmental health risks and impacts under a changing climate.