About air quality and pollution
Air quality means how clean or polluted our air is. When air quality is poor, pollutants in the air may be harmful to people.
Air pollution can have short and long-term health effects. People with lung or heart conditions are most at risk.
How air pollution harms health (GOV.UK).
Find out what we’re doing to improve air quality.
Causes of air pollution
The main source of air pollution in London is road transport. Almost 40% of all nitrogen dioxide emissions within London come from diesel vehicles.
Other sources of air pollution that we can all work to address include emissions from:
- gas boilers
- burning wood and coal at home
- construction sites
Find out about the air quality near you
Find the air pollution forecast for London (London Air).
Find your air pollution forecast by postcode (UK AIR).
Sign up for air quality alerts by text, email or voicemail (AirTEXT).
Breathe London has air quality measuring sensors, known as Nodes, across London. Find a node and view data about the air quality around it.
To learn more about air pollution and its health effects, visit the Clean Air Hub.