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A few important facts

Air Quality in London, SW1A 1AA

    Nitrogen Dioxide Exceeds EU annual limit values

Nitrogen dioxide pollution

NO2 (nitrogen dioxide) annual mean level is 47.1 µg/m3, which is above EU quality limit set to 40 µg/m3.

Increased levels of nitrogen dioxide can have significant impacts on people with asthma because it can cause more frequent and more intense attacks. Children with asthma and older people with heart disease are most at risk.

Particulate matter pollution

PM10 (10 micrometre particulate matter) annual mean level is 25.7 µg/m3, which is below EU quality limit set to 40 µg/m3.

PM2.5 (2.5 micrometre particulate matter) annual mean level is 15.4 µg/m3, which is below EU quality limit set to 25 µg/m3.

PM10d (days exceeding daily PM10 mean limit of 50 µg/m3) is approximately 14 days pear year, which is below the quality limit set to 35 days per year.

PM2.5 and PM10 are atmospheric particulate matter with a diameter smaller than respectively 10, 2.5 microns. They are also called floating dust. Long-term exposure to increased levels of PM2.5 and PM10 may trigger or worsen chronic diseases such as asthma, heart attack, bronchitis and other respiratory problems.

Explore air quality in nearby locations

  • Air Quality in Palace Place, London, SW1E 5BW
  • Air Quality in Palace Street, London, SW1E 5DX
  • Air Quality in Catherine Place, London, SW1E 6DU
  • Air Quality in Buckingham Gate, London, SW1E 6LA
  • Air Quality in Stafford Place, London, SW1E 6NP
  • Air Quality in Buckingham Mews, London, SW1E 6NR
  • Air Quality in Buckingham Palace Road, London, SW1W 0PR

Data source: London Air Quality Network

A few important facts

Flood Risk in London, SW1A 1AA

  • Flood risk from Rivers and Sea Very Low flood risk
  • Flood risk from Surface water Very Low flood risk

*Results apply to the surrounding area, not to a specific property

Flood risk from Rivers and Sea

The area around London, SW1A 1AA has very low chance of flooding from Flood risk from Rivers and Sea.

Flood risk from Rivers and Sea shows the likelihood of flooding caused by overflowing rivers or coastal surges.

Risk levels are based on Environment Agency modelling, which considers river levels, tides, flood defences, and climate change projections.

Ratings:

  • Very Low – less than 0.1% chance of flood each year (inside shaded area)
  • Low – from 0.1% to 1% chance of flood each year
  • Medium – from 1% to 3.3% chance of flood each year
  • High – more than 3.3% chance of flood each year

Even a “Very low” rating doesn’t mean zero risk, and insurance or mortgage requirements can be affected at any level.

Flood risk from Surface water

The area around London, SW1A 1AA has very low chance of flooding from Flood risk from Surface water.

Flood risk from Surface water shows the chance of flooding caused by heavy rain that cannot drain away quickly.

This can happen even far from rivers or the sea, often in low-lying areas, streets, or places with poor drainage. Risk levels are based on Environment Agency modelling, which considers rainfall patterns, land shape, and drainage capacity.

Ratings:

  • Very Low – less than 0.1% chance of flood each year (all areas outside shaded area)
  • Low – from 0.1% to 1% chance of flood each year
  • Medium – from 1% to 3.3% chance of flood each year
  • High – more than 3.3% chance of flood each year

A “Very low” rating doesn’t mean there’s no risk, and flood risk can influence insurance and mortgage conditions at any level.

Data source: Defra

2025

Explore flood risk in nearby locations

  • Flood Risk in Palace Place, London, SW1E 5BW
  • Flood Risk in Palace Street, London, SW1E 5DX
  • Flood Risk in Catherine Place, London, SW1E 6DU
  • Flood Risk in Buckingham Gate, London, SW1E 6LA
  • Flood Risk in Stafford Place, London, SW1E 6NP
  • Flood Risk in Buckingham Mews, London, SW1E 6NR
  • Flood Risk in Buckingham Palace Road, London, SW1W 0PR

Explore more