USELESS ULEZ - Choked? Has Sadiq Khan's flagship policy saved lives, or harmed livelihoods?

Air pollution in London has changed dramatically over the past few decades — but how much of that is down to policies like ULEZ, and what's still being missed?

This week Helen Czerski is joined by Dr. Gary Fuller, an air pollution scientist at Imperial College London who has spent over 30 years measuring air quality in the capital. They cover what's actually in the air we breathe, how ULEZ and other low-emission schemes have changed it, and the surprisingly large health benefits that are now being measured — plus the pollution sources still flying under the radar.

Catch us live at Everything Electric Greater London (Twickenham, 11-12 Sept) and Sydney (18-20 Sept).

00:00 Intro – ULEZ and London's air today

02:21 Meet Dr. Gary Fuller

03:50 Has London's air pollution actually improved?

07:25 What's in the air

11:45 How air pollution is measured

16:34 A short history of LEZ and ULEZ

19:13 The evidence

25:37 Tyre and brake wear – the overlooked pollution source

29:24 What Gary would fix next: Heathrow, aviation fuel, wood burning