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A small, wearable sensor (LEO, Little Environmental Observatory) detects nitrogen oxide, nitrogen dioxide and ozone. Then, via bluetooth, the LEO communicates with the ExpoApp (for Android) to display the current air quality reading on the user's device.
Become a SciStarter Ambassador!
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Applications to join the final cohort in this inaugural class of SciStarter Ambassadors due May 2nd

Libraries and community organizations need your help to spark excitement for citizen science and keep the momentum going!

The SciStarter Ambassador Program offers FREE training to volunteers ready to make an impact in their communities.

Ready to make a difference? Complete your application by May 2nd to join the movement!