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Environment
  • Updated 13 days ago

    London Reservoir Levels

    Table showing daily Reservoir levels in London since 1989 as percentage of usable or deployable capacity in the Lower Lee Group and Lower Thames Group reservoirs. Usable or deployable capacity excludes water normally left in a reservoir for environmental or emergency contingency measures. View Environment Agency website
  • Updated 25 days ago

    PM2.5 map and exposure data

    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 than WHO air quality guidelines, bu...
  • Updated a month ago

    Carbon Dioxide Emissions, Borough

    Carbon Dioxide Emission Estimates. Local and Regional CO2 Emissions Estimates for 2005-2010 plus, subset data of CO2 emissions within the scope of influence of Local Authorities (previously called National Indicator 186: Per capita CO2 emissions in the LA area) by sector. Estimates of total CO2 emissions, and emissions per capita of population, are both on an end-user basis. The subset data represents carbon dioxide emissions within t...
  • Updated a month ago

    Domestic Energy Efficiency Ratings, Borough

    Number of Domestic Energy Performance Certificates (EPC) lodged on the Register, in each Local Authority, by Energy Efficiency Rating (fuel cost) or Environmental Impact Rating (Carbon Dioxide emissions), in each Year/Quarter. Floor area data is broken down by property type. Type of property is broken down into Bungalow, House, Flat, or Maisonette. These tables show data from certificates lodged on the Energy Performance of Buildings (...
  • Updated a month ago

    Green roofs in the Central Activities Zone

    Overview An updated spatial data set for existing green roofs has been produced for London's Central Activities Zone (CAZ) using 2015 aerial imagery. The CAZ makes up around two per cent of London's total area. Method ArcMap GIS software was used to map green roofs installations. The aerial imagery was loaded into the software in true colour (RGB) and infrared (IR) composites, along with the CAZ boundary and London 500x500m Ordnance ...
  • Updated a month ago

    Annual London Survey 2000 - 2011

    This dataset contains the topline results from the Annual London Surveys undertaken between 2000 and 2011 (there was no survey was 2008). Responses for these surveys were collected by conducting approximately 1,400 face-to-face interviews (exact numbers vary year on year) in respondents’ homes. From 2014 onwards the Annual London Survey has been delivered by Talk London, City Hall’s online research community. The results for these surv...
  • Updated a month ago

    Mortality Risk from High Temperatures in London (Triple Jeopardy Mapping)

    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 generally uses the World Meteorological Organization definition of a heatwave, which is "when the daily maximum temperature of more than five consecutive days exceeds the average maximum temperature by 5°C, the normal period being 1961-1990". They are common in the northern and southern hemisph...
  • Updated a month ago

    Area of Designated Green Belt Land

    Area of Designated Green Belt Land (hectares). Only london boroughs with some greenbelt land shown. A GIS of this land for all of England has now been made available by DCLG. Download the GIS Zip file (27MB) External link: https://www.gov.uk/government/collections/green-belt-statistics
  • Updated a month ago

    London Average Air Quality Levels

    The data shows roadside and background average readings for Nitric Oxide, Nitrogen Dioxide, Oxides of Nitrogen, Ozone, Particulate Matter (PM10 and PM2.5), and Sulphur Dioxide. Measured in Micrograms per Cubic Meter of Air (ug/m3). The spreadsheet shows which Index level each reading falls in, and contains charts showing pollutant levels by time of day per month. Trend graphs of Nitrogen Dioxide and Particulate Matter PM2.5 are on the ...
  • Updated a month ago

    London Heat Map

    The Decentralised Energy Master planning programme (DEMaP), was completed in October 2010. It included a heat mapping support package for the London boroughs to enable them to carry out high resolution heat mapping for their area. To date, heat maps have been produced for 29 London boroughs with the remaining four boroughs carrying out their own data collection. All of the data collected through this process is also shown on the intera...