The Mayor of London, Sadiq Khan, today announced plans for 10 more Low Emission Bus Zones deploying the greenest buses on the capital’s most polluted routes to cut harmful nitrogen oxide (NOx) emissions. The buses are part of the Mayor’s hard-hitting measures to tackle London’s filthy air – responsible for the premature deaths of more than 9,000 Londoners every year – with major plans set to be implemented in 2017 to tackle the dirtiest vehicles.