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Current nitrogen dioxide levels - see a street by street pollution map.
Latest hourly air pollution indexes
Local Authorities
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Latest episode: PM10 and PM2.5 early April 2013
Air quality objectives for 2012 - does London pass or fail?
Current guide topic: Ozone season
News: PM10 at Horn Lane, Acton.
News: Pollutionwatch: May 2013
News: Havering monitoring site reopens with state of art equipment