Ultra Low Emission Zone - Expansion Programme - Right or Wrong?
The move comes as Transport for London (TfL) plans to expand the ULEZ scheme to all of the capital from August.
Sutton Lib Dems, who lead Sutton Council, argue the scheme, which charges some drivers of the most polluting cars £12.50 per day, is unfair to its residents.
A London mayor's spokesman says "toxic air is a matter of life and death".
ULEZ aims to reduce pollution and congestion in London, but some residents in Sutton say they rely more heavily on cars and buses to get around, as it does not have any London Underground or Overground services.
TfL owns 5% of London's road network, with the majority being owned by local councils. Individual boroughs must give permission to TfL to install the 2,750 cameras needed for the expansion of ULEZ.
'Sending a strong signal'
Sutton Liberal Democrats said: "We are concerned that the costs will be shouldered by people already struggling to get by in a difficult time, including small business owners and key workers."
The party is calling for TfL to introduce a more comprehensive scrappage scheme, provide more time for people to change to compliant vehicles, and increase the number of buses and trams in Sutton.
"We are taking this step to send a strong signal to the mayor that he must start listening to local people."
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