Open citizen science
We measure the air we breathe
Low-cost sensors, built by citizens, to make air quality visible in Bogotá and Colombia with open data.
Right now
Air quality, in real time
Live readings from the AireCiudadano sensor network. The full history is available in the open data portal.
Quick guide
What does the colour of the air mean?
The official scale runs from green to purple. Each level carries a concrete recommendation for your health and your family’s.
Sin riesgo. Se puede hacer cualquier actividad al aire libre.
Sin riesgo para la salud. Actividad fÃsica y al aire libre sin restricciones.
Las personas sensibles (niños, asmáticos y adultos mayores) deben reducir la actividad física intensa al aire libre.
Toda la población debe reducir la actividad fÃsica al aire libre. Buen momento para usar tapaboca.
Evite actividades al aire libre. Riesgo de efectos salud para toda la población.
Emergencia ambiental. Evite todo contacto con el aire exterior y siga las recomendaciones de las autoridades.
Logbook
Latest measurements and activities
Workshops, campaigns and data collected by the community.
Take part
Build your own sensor
Step-by-step guides, open and in English, so that anyone can measure.
Particulate matter sensor (PM2.5)
The easy version: build an air quality sensor with accessible parts and send its data to the network.
In the media
AireCiudadano on TV, radio and press
Do you want to measure the air in your neighbourhood?
We help you install a sensor and read the data. We also run workshops for schools, universities and communities.