Underground Journeys shouldn't cost your health.
Many assume underground air quality is constant, but it actually shifts day-to-day in ways that aren’t obvious. We're building a tool to help commuters understand those invisible changes and travel cleaner and smarter.
The app helps commuters
- monitor their pollution exposure on the Underground and let users choose what way they travel based on that.
- have a clear, personalised insights into how different journeys affects health overtime.
Users can also choose to contribute to the platform by carrying a small, wearable monitor to help map the air beneath the city, creating a fuller picture for everyone.
Our work is based on environmental and transport research conducted right here in London.
Problem
- The London Underground exposes riders to pollution levels up to 30x higher than above-ground air.
- Over 5 million daily passengers use the Tube, meaning half of London’s population is breathing this in.
- The health impacts are real: air pollution causes over 8.3mn premature deaths annually (affects 11% of the global population).
- Underground spaces put you more at risk. Yet, there’s no way to track or avoid these conditions today.
What we are offering
We're not releasing everything yet—but if you're curious, this is your chance to be early.
Healthier route suggestions for underground journeys in real time
Deep insights into pollution underground
Health and air related alerts while commuting
Long term vision and health tracking
Sounds Interesting?
Sign up to the early birds list by clicking the button below!
Want to get involved?
We’re building this with the community. Whether you just want to stay updated or get early access, we’d love to hear from you.
Early supporters will get access to a compact pollution monitor that helps map real conditions on the Underground — and unlock deeper insights inside the app.
Why get involved?
You already feel it - the stale, heavy air, the claustrophobic heat, the endless rush.
✅Get discounts on premium app features ✅ Get access to your own data ✅ Be part of a movement to make London’s commutes healthier and smarter ✅ Get early access to tools designed to help you understand what you’re breathing ✅ Contribute to a community-led project built on real stories and real data
This isn’t just another app, it’s a way to take control of your everyday health in the city.
👩🔬 Built with real Londoners
This project was started by a team of recent graduates from Imperial College London, passionate about turning data and engineering into something that actually helps city life.
We've spent months talking to commuters, studying the air beneath London, and now we're building something that puts that knowledge to good use.
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