The page gives access to the 2021 London Output Area Classification (2021 LOAC), a new free and open source geodemographic classification for London. Based on 2021 census data it uses nearly 70 measures to classify each of more than 26,000 output areas in London within a hierarchical structure. Here we present a lookup table of the LOAC, descriptions of the 7...

The 2021 London Output Area Classification (LOAC) has been created by the CDRC and published on 2 October 2023. Data and supporting information are on the datastore here. This page gives access to the OLD 2011 London Output Area Classification (LOAC), an open source geospatial classification, using a combination of over 60 variables from the 2011 Census to classify every...

This report contains an introduction to PM2.5­, summarises our current understanding of PM2.5 concentrations and exposure, discusses the findings of research undertaken by the GLA and TfL into the extent of PM2.5 pollution in London, and assesses the potential for meeting World Health Organisation guidelines by 2030. Our analysis found that at present all Londoners are exposed to concentrations higher...

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