Greater London Authority (GLA)

Updated in Februrary 2017. Air quality in London has improved in recent years as a result of policies to reduce emissions, primarily from road transport. However, recently updated maps of pollution concentrations for 2013 (LAEI 2013) still show significant areas of exceedances of the annual mean NO2 EU Limit Values. Improvements are planned to address these, as recently announced in the...

For an urban heat island map during an average summer see this dataset. A heatwave refers to a prolonged period of unusually hot weather. While there is no standard definition of a heatwave in England, the Met Office uses the World Meteorological Organization definition of a heatwave, which is "when the daily maximum temperature of more than five consecutive days exceeds the...

For an urban heat island map during a warm summer see this dataset. This map shows the results of an ‘UrbClim’ simulation for the mean temperature at midnight during the summer of 2011 (May to September) at a resolution of 250m. This summer has been selected as a typical summer for a West-European city. On average, the night-time temperature is approximately 4°C higher in...

Borough Tables from Understanding the Health Impacts of Air Pollution in London report. King’s College London, commissioned by the Greater London Authority and Transport for London, have calculated the health impacts associated with the air pollutant nitrogen dioxide (NO2) in London. This new study shows that in 2010 there was the equivalent of up to 5,900 deaths across London associated with NO2...

This data is taken from a survey of 1025 young Londoners aged from 11 to 16 years old, undertaken in Spring 2009 by ICM research on behalf of the GLA. The questions explore areas of Mayoral policy and priority including safety, the environment, transport, the Olympics and community involvement. The data is available by demographic group, including gender, age, ethnicity and...

London’s Environment Revealed is a joint report on the State of the Environment in London, produced by the Greater London Authority, Environment Agency, Natural England and the Forestry Commission. The report looks at the state of London’s environment today, highlights the improvements that have been made, and the challenges the city faces. The report also features many projects and schemes...