Despite all the claims by those in your article, the evidence never appears.

Not only is evidence to support your claim never available but evidence to the contrary exists.

For example, emissions are well within acceptable levels before LEZ schemes.

After imposing traffic measures and ULEZ emissions have risen as a result of traffic travelling more the long way.

And let's not forget the obvious elephant in the room.

Only a tiny minority will buy ULEZ acceptable vehicles and the Councils know this. Hence why they enjoy the fines and income.

It' all about money. Nothing to do with emissions unless of course ULEZ is to increase pollution.