“However, the car CAZs in Bristol and Birmingham and the extended Ultra Low Emission Zone in London are very blunt tools that create a tax burden for low-income families and workers.”
He added: “These drivers are least able to afford to replace the vehicles they depend on for work, often night shifts, and sometimes emergencies such as going to hospital or healthcare centres.
“They are also the ones least able to pay the fines.”
The city council, which is offering exemption permits for in-zone residents, said the initiative is crucial to improving air quality and public health in central Birmingham.