"Drivers of older, more polluting vehicles now have to pay almost twice as much to drive in central London.

Mayor Sadiq Khan's £10 T-Charge, which mainly applies to diesel and petrol vehicles registered before 2006, has come into force.

It covers the same area as the existing congestion charge zone, bumping up the cost to £21.50 for those affected.

"From Monday 23 October, there is a £10 daily fee for those who drive more polluting vehicles in the congestion charging zone, on top of the existing £11.50 congestion charge."

Vehicles that do not comply with the Euro IV exhaust standard must pay the £10 charge.

The standard defines emissions limits for cars, vans, buses, coaches and lorries. Most vehicles registered before 2006 are likely to exceed these limits.

The zone will operate between 07:00 and 18:00, Monday to Friday.

You can find out if your car is affected with TfL's T-Charge checker."

http://www.bbc.com/news/uk-england-london-41695116

Happy motoring - not.

Finally. And first step towards an ultra-low emissions zone in a couple of years. Massively overdue in a city which takes just 5 bad days to exceed a whole years worth of pollution standards.

I expect the diesel black cabs will be excused as they do not pay the congestion charge, an electric cab will be available soon, & that change will help air quality a lot.