“This blows a huge hole in the argument that lower speed limits will improve air quality.
“With two locations helping air quality and two hindering air quality, I don’t believe that the data can accurately ascertain whether lower speed limits are making a difference to overall air quality.
“I fear, that when results come in from across all monitored speed limit changes, we will see Labour pushing the button on their road charging plans, as their only option to get commuters off the roads.”
