London mayor is open to ideas to mitigate impact on residents, but not on scheduling of policy some blame for loss of byelection

Sadiq Khan is open to new ideas for mitigating the impact of the anti-pollution levy in London being expanded next month, but refusing to back down on the planned timing of its implementation.

Despite pressure from some in Labour for city hall to rethink the policy they believe lost the party the Uxbridge and South Ruislip byelection on Thursday, the mayor is determined for it to come into force.