We're Breathing Cleaner Air Thanks To The ULEZ Expansion

Introduction

• ULEZ (Ultra Low Emission Zone) expansion has been impactful in improving air quality in London.
• Initiated on 29 August 2023, the expansion faced backlash from motorists due to new daily charges.

ULEZ Impact on Air Quality

• Air quality improvements have been observed at 99% of monitoring sites in London since 2019.
• London's air quality is improving faster compared to the rest of England.

Key Findings from Greater London Authority Report (7 March 2025)

• Nitrogen Dioxide (NO2) Levels: Reduced by 27% across the capital.
  • NO2 is known to exacerbate asthma, hinder lung development, and increase lung cancer risk.
• PM 2.5 Emissions: Down by 31% in outer London in 2024 due to the ULEZ.
• Carbon Emissions: Reduction equivalent to nearly three million one-way trips between Heathrow and New York.

Statements from the Mayor of London, Sadiq Khan

• Initial Situation: In 2016, it was projected to take 193 years to bring air pollution within legal limits without ULEZ.
• Current Status: Close to achieving legal air pollution limits this year due to policies including ULEZ.
• Health Impact: ULEZ crucial for protecting health, supporting lung growth in children, reducing asthma and lung cancer risks.

Omitted Statistic

• The report does not include data on lives saved by the ULEZ.
• Previous research indicated around 4,000 premature deaths in 2019 were linked to toxic air.

Conclusion

• Despite opposition, the ULEZ is effective in achieving its goals of reducing air pollution and improving public health in London.