Indicator 3.9.1: Mortality rate attributed to household and ambient air pollution Department for Environment, Food and Rural Affairs - DEFRA, 2013 UK data context: Percentage of adult deaths (aged 30 and over) attributable to particulate air pollution dataset from the Department for Environment, Food and Rural Affairs (DEFRA) (English dataset only) Connection to built environment: Although the dataset groups household and ambient air pollution in one indicator, well-evidenced connections between housing quality and pollution will affect the performance of this measure. Indicator 11.1.1: “Proportion of urban population living in slums, informal settlements or inadequate housing” UK data context: Percentage of dwellings failing minimum standard decent homes criteria (English dataset only) Connection to built environment: This indicator looks directly into the quality of housing based on the UK policy tool Housing Health and Safety Rating System (HHSRS) Indicator 11.a.1: Proportion of population living in cities that implement urban and regional development plans integrating population projections and resource needs, by size of city UK data context: methodology not yet established Connection to built environment: This indicator pertains to the quality of strategic planning at the urban or regional level and therefore could inform the quality and quantity of housing built in the future. As the implementation methodology has not been established, there is an opportunity for the researchers to advise on the choice of data. Source: ONS, 2019