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London's most pollutant buses set for clean up in £86m programme

5,000 buses will be retrofitted with new exhaust systems which will cut harmful emissions

The capital’s most polluting buses are set to by upgraded in a programme which will cut harmful emissions by 95%.

More than half of London’s entire bus fleet is to be upgraded to meet the latest ultra-low Euro VI emissions standard, as part of Mayor Sadiq Khan’s plan to clean the city’s air.

Through the new £86.1m programme, around 5,000 buses will be retrofitted with a new exhaust system that will significantly cut emissions, meaning that by September 2020 the entire bus fleet will be at least Euro VI standard.

Transport for London (TfL) will work with bus operators and five chosen suppliers to install the new bespoke exhaust systems which will reduce nitrogen oxides and particulate matter.

Diesel Particulate filters will also be installed alongside this Selective Catalytic Reduction equipment to reduce air pollution.

Transport operators RATP Dev announced fully electric bus routes running through west London earlier this year(Image: UGC TMS)

The retrofit programme is the latest measure from the Mayor in his bid to clean up London’s bus fleet.

Currently 700-800 new low-emission buses are being introduced to the fleet every year, with diesel-only buses being phased out.

From next year, all new double-deck buses will be hybrid, electric or hydrogen.

In addition all buses within the central London Ultra-Low Emission Zone will be Euro VI hybrid standard by 2019.

Mr Khan also set out in his draft Transport Strategy last week that all 9,200 buses across London will be zero emission by 2037.

He said: “We know that pollution from our roads is a major contributor to London’s toxic air.

“That’s why we are working so hard to introduce new clean buses on our streets and why we are continually looking for innovative ways to clean up the most polluting buses.

“There’s no doubt that by cutting the emissions of more than half of the fleet by up to 95%, this innovative retrofit programme is going to make a huge difference to Londoners.”

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