Toxic air: mother of girl who died from asthma calls on politicians to be braver

As Sadiq Khan launches ultra-low emissions zone in London, Rosamund Kissi-Debrah says it is still not enough

The mother of a schoolgirl who died of an asthma attack linked to air pollution has warned time is running out to save other children from a similar plight and called on politicians to do more to tackle the crisis.

On the day mayor of London, Sadiq Khan, launched the city's new ultra-low emissions zone (Ulez) to improve deadly air pollution, Rosamund Kissi-Debrah urged others to follow his example and called on him to go even further, faster.