UK LLC has commissioned the University of Leicester and St George's, University of London to model a number of geo-environmental exposure estimates. These are based on taking existing environmental sensor readings and with other model inputs (e.g. traffic count data, weather pattern data) used to model pollution and other environmental exposures and to map these to participants’ addresses (where LPS/participant preferences permit). UK LLC also collates and processes public domain datasets relating to address data for inclusion in the UK LLC TRE.