Four vehicle manufacturers are help cities adopt bus fleets equipped with “soot-free” technologies to tackle air pollution.
BYD, Cummins, Scania and Volvo Buses have pledged to ensure soot-free engine technology is available for purchase in 20 megacities next year, including Bangkok, Dhaka, Istanbul, Jakarta, Sao Paulo and Sydney.
Soot-free technology is any engine that meets Euro VI rules and any diesel engine with a particulate filter, gas-powered engine or an electric drive engine.
According to UN Environment, less than 20% of all buses sold globally meet the definition of soot-free, with the vast majority being diesel powered.
It adds older diesel technology produces high levels of black carbon emissions or soot, which are amongst the most dangerous pollutants for health and a major contributor to climate change.