What are levels now?

Air quality around Heathrow in the last few hours can be found on the Heathrow AirWatch website.

For regional and national levels visit the UK-Air website. Or telephone 0800 55 66 77 for an automated helpline five day forecast and latest data by region.

A pdf icon summary of air quality in Spelthorne [3Mb] over the last year is available to download. Previous years are available on request.

Find out levels on the move

Get the free LondonAir App (available on iTunes, Google Play and the Chrome Web Store) for current, past and predicted pollution levels across the Greater London area.

Follow UK-Air on Twitter for air quality forecasts and summaries. Additional tweets are issued in advance of and during periods of poor air quality.