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
33:46 Health impacts – the Ella Kissi-Debrah case
37:32 Quantifying ULEZ's health benefits
44:23 Why doesn't the health argument win politically?
48:59 US case study: 40% drop in admissions after a plant closed
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EE GREATER LONDON (Twickenham) - 11th & 12th Sept 2026
EE SYDNEY - Sydney Olympic Park - 18th - 20th Sept 2026
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