New study maps air pollution hotspots across Nairobi
Low-cost sensors placed around the city show pollution peaking near busy junctions and informal waste burning sites.
By Grace Achieng. 6 Oct 2026, 13:00 EAT
A network of low-cost air quality sensors has given researchers a more detailed picture of where pollution concentrates in the city and at what times of day.
The researchers stress that low-cost sensors need careful calibration and that the results show patterns rather than precise exposure levels.