The City Air app - the healthiest way around London.

Are you a jogger, cyclist, driver or commuter? Do you know when pollution is high or low?

The City Air app will alert you on days when pollution is forecast to be high and give you tailored advice on simple actions you can take to reduce your emissions and exposure to air pollution.

Use the map to plan your journey and easily pick the lowest pollution route through the City - even in 3D!

You are the key to cleaner air.

This application was designed and developed by the City of London Corporation and King's College London.

What’s New

Version 2.0.3

Bug fixes and performance improvements

Ratings and Reviews

3.3 out of 5
4 Ratings

4 Ratings

katiekat2232 ,

Not reliable for high pollution conditions

Have noticed running to and from work some days that I can tell it’s a high pollution day (can taste the fumes even away from the road, cigarette smoke collecting in patches of air even when there’s no smoker there, I’m finding it harder to breath for the same pace and have sore eyes when I get home. Checked my other pollution app Plume and it says there are high pollution levels whereas City Air says its low!

MrUppity ,

Nice idea - but it doesn't work

I really like the idea of this app, but sadly the rout function is not working. Every time I try to plan a route I get the same message: "the route could not be calculated because the data is in the incorrect format". I have tried addresses, post codes... what format do you want!

Mrs Canary ,

Great idea BUT....

It doesn't work! It does not allow me to access a user group or plan a route which makes it useless.


Environmental Research Group-King's College London
63.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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