Discover four citizen science projects that have been running for some time and that are being able to influence new policies and activate actions by specific groups: DNoses, CityMeasure, CoAct for Mental Health and Mosquito Alert.

What challenges are on the table to co-produce actionable knowledge? What lessons can be learned for other experiences in the city? What can citizen science contribute to policy change in the management of odours, noise in the city, mental health care or the presence of mosquitoes? What role do civil organisations play, or can they play?

Other Citizen Science Day proposals

• Citizen Science Day - Schools
• Citizen Science Day - Maturity