Air quality and Flood risk by postcode, London

Check the air quality and risk of flood for London

See the heatmaps to track air pollution levels and key indicators like:

  • Nitrogen dioxide levels a.k.a car exhaust
  • PM10 dust levels a.k.a 10-micrometre particulate matter
  • PM2.5 dust levels a.k.a 2.5-micrometer particulate matter
  • Days per year when PM10 is higher than EU limits a.k.a PM10d

Air Quality by postcode, London

Air Quality on map

More about Air Quality select location

This map shows the annual mean pollution for the chosen species during 2016 in detail across London.

Annual means give a good indication of the average level of pollutant and long-term exposure. Increasingly evidence is pointing to long-term exposure to air pollution as being more important than exposure to short-term peaks.

The chosen pollutants are ones that are known to have an effect on health within London and are able to be predicted with this model.

Flood Risk by postcode, London

Flood Risk on map

Type in postcode or click to drop a pin

More about Flood Risk select location

This map shows the chance of flooding from rivers and the sea, based on cells of 50m. Each cell is allocated one of four flood risk categories, taking into account flood defences and their condition.

It uses local water level and flood defence data to model flood risk across 40 different flood likelihoods.

Results are put into categories and checked by local experts:

  • High: greater than 1 in 30
  • Medium: 1 in 30 to 1 in 100
  • Low: 1 in 100 to 1 in 1,000
  • Very Low: less than 1 in 1,000

GLA licensed under Open Government Licence v3.0