A low-cost air quality sensor network providing
valuable data to local communities in Nairobi.

In 2012, poor air quality was responsible for 7 million premature deaths, making it the world’s single largest environmental health risk. The burden of air pollution is disproportionally borne by the developing world, and sir quality data is urgently needed to develop effective management plans. However, in Sub-Saharan Africa, air quality data often do not exist, although existing studies show that air quality frequently exceeds the World Health Organization air quality standards.

Clean Air Nairobi describes the experimental deployment of six low-cost air quality monitors in Kenya’s capital, a 4 million people city.

Despite technical limitations and issues related to data quality, such network of low-cost sensors can provide indicative measurements of air quality that are valuable to local communities.

Clean Air Nairobi is based on a collaboration between MIT Senseable City Lab, UNEP, the company Alphasense, the University of Cambridge, the NASA-GLOBE citizen science program, the Wajukuu Arts Collective and the Kibera Girls Soccer Academy.

Paper: A Nairobi experiment in using low cost
air quality monitors

Priyanka deSouza, Victor Nthusi, Jacqueline M. Klopp, Bruce E. Shaw,
Wah On Ho, John Safell, Roderic Jones, Carlo Ratti
Clean Air Journal, Volume 27, No 2


St. Scholastika

United Nation (UNEP)

All Saints

Alliance Girls


Carlo Ratti, Director
Priyanka deSouza, Project Lead
Ruxian Ma, Visualization
Louis Charron, Design, Web


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