Issued by 1pm
This map shows current pollution levels across London. This combines readings taken within the last hour and air pollution modelling.
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Recent episode: High ozone middle June 2017
This is a prototype visualisation of the annual objectives for monitoring sites, designed to be explored and to inspire comment. It helps us to see if exceeding sites problems are due to average level over the whole year or also peak hours.
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The latest news and research from King's: View the archive
We try to answer common questions about air pollution in London, and explain how our website can keep you informed.