Explore knowledge & action
Explore real-world cases, scientific research and creative work that show the impact of citizen science.
Cases & stories
40 storiesHow citizen observatories work in practice. Read stories from the project cases, for example schools monitoring air quality in Greece or educational institutions in Mykolaiv, together with the lessons learned along the way.
Story300 Students, 9 Schools, One Mission: Monitoring Greece’s Air with AirLimnosĀ
AirLimnos is an initiative which was born by Web2Learn, a research and development company specialising in digital education, and has joined the…
StoryA Look Back, to Start the New Year
Itās 2025 and that marks the start of the third year of CitiObs! We have had an amazing two years working together…
StoryBeyond Ambient Monitoring: Why Personal Exposure Reveals What Regional Air Quality Misses
The value of activity-based exposure monitoring through the use of wearables isn't just understanding - it's empowerment. When individuals see their actual…
StoryBreaking Barriers in Environmental Monitoring with the Low-Cost Sensor Toolkit
Environmental challenges are growing concerns for communities around the world. Citizen participation in monitoring efforts has become a powerful way to address…
StoryBreathing Better, Together: Marking the International Day of Clean Air with CitiObs
Every breath we take connects us to our communities, to the places we live, and to the quality of the air that…
StoryCan Citizen Science bring wonder into science?
Dive into the thoughts of CitiObs' Coordinator NĆŗria Castell
StoryCitiObs takes action – working with creatives for positive change
In CitiObs we value co-creation and co-design. This means that in the development of our tools and toolkit we not only work…
StoryCitizen-led interventions to reduce noise by the Frontrunner case in Barcelona
Since November 2023, the Front Runner Case (FRC) in Barcelona has been thriving! Insights gathered during the Citizen Observatory onboarding workshop were…
StoryCitizen Observatories in Educational Institutions of Mykolaiv. What Air Quality is Relevant for Ukraine Today
Local measurements are becoming part of a broader citizen science network, while educational institutions are joining European environmental monitoring efforts. This work…
StoryCitizen Science in Action: Highlights from the CitiObs Study Visit in Brussels
In October 2025, CitiObs reached an important milestone. During the European Week of Regions and Cities ā one of Europeās largest gatherings…
StoryCitizen Science in Ukraine: Monitoring Air Pollution Amidst WarĀ
The ongoing war in Ukraine is not only a humanitarian crisis but also an environmental one. Fires, destruction, and explosions have significantly…
StoryCleaner Air Directive in Europe needs citizen scienceĀ
The entry into force of the new European Ambient Air Quality Directive has opened new horizons for improving the quality of the…