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A New Chapter in London’s Air Quality Journey
London has come a long way in its fight against air pollution. From the infamous smog of the 1950s to today’s data-driven clean air strategies, the city has consistently pushed forward. Public awareness is growing, and local authorities are more committed than ever to improving urban air quality. One of the most impactful initiatives in recent years, regarding air quality monitoring in the UK, is Breathe London – a collaborative programme that’s transforming how pollution is monitored and managed.
Smart City Sensors in Action
At the heart of Breathe London is a network of hyperlocal air quality sensors, deployed across the capital in places that matter most – near schools, hospitals, parks, and busy streets. These sensors provide real-time data on the most common pollutants: PM2.5, NO2, and O3, helping communities and decision-makers respond quickly and effectively.
Airly delivered 136 scientifically validated sensors. The devices deliver minute-by-minute updates, calibrated in partnership with the University of Cambridge and CERC, ensuring both precision and trustworthiness. The sensors are integrated into smart infrastructure, making them ideal for modern, responsive cities.
Why It Matters?
- Empowerment of communities: Residents can check air quality in their immediate surroundings, not just city-wide averages.
- Health protection: Schools and hospitals use the data to minimize exposure and create safer environments.
- Policy impact: Local councils can shape traffic regulations, green space planning, and public health campaigns.
What’s Next for Breathe London?
At London Climate Action Week in June 2025, the Mayor of London and Bloomberg Philanthropies reaffirmed their commitment to the program by launching a new phase focused on public engagement. Delivery is led by a consortium of experts convened by Vodafone, including Global Action Plan, Airly, Ricardo, Scotswold Ltd, Cambridge Environmental Research Consultants, and the University of Cambridge.
The next phase includes:
- More sensors in pedestrian zones like Oxford Street
- Enhanced public dashboards and mobile apps
- Community-led monitoring and education programmes.
Join the Clean Air Movement
London’s experience shows air quality monitoring in the UK can be improved through the use of smart technology, strong partnerships, and community involvement. If you’re a city planner, school administrator, or local campaigner, consider how Airly’s technology and the Breathe London model could support cleaner air in your area.