Dangerous levels of pollution along the M25

Highways England is expected to start monitoring pollution on the M25 after sections of the motorway in Kent were identified as having some of the highest levels of toxic gases in the country. The section of road breaks EU rules for the toxic gas nitrogen dioxide and also exposes residents to high levels of particulate pollution.

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Motorway pollution levels 'worrying'

Professor Malcolm Green, from the British Lung Foundation, said that the latest report about pollution levels on the M25 were worrying.

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