What can you tell me in 30 seconds?

Long term exposure to air pollution takes an average of six months off your life, even if you do not experience effects at the time of exposure.

Short term exposure to air pollution tends to affect people with existing heart and lung conditions.

Actions are being taken to try to improve air quality in London, and you can try to avoid pollution and to reduce the amount you pollute.

• You can get much more detailled information from our full air pollution and health guide.
• Long term pollution map - see if London meets air quality objectives.
• Short term map pollution map - see the latest hourly air quality.