NASA MAIA Sensors Track Fine Particle Pollution Across Addis Ababa
NASA's Multi-Angle Imager for Aerosols (MAIA) mission is using 10 roof-mounted air sensors in Addis Ababa, Ethiopia, to measure particulate matter 2.5 micrometers or smaller, known as PM2.5 [1][2]. The sensors collected data over three years, with mapped readings ranging from 20 to 40 micrograms per cubic meter across the city [2]. Black carbon, or soot, is described as an important part of the city's particulate pollution and comes from diesel vehicles, fires, and other combustion [1]; studies have linked it to low birth weight, brain development effects, respiratory conditions, and premature mortality [2]. The measurements show how pollution shifts by time of day and season, including increases tied to rush-hour traffic and holiday celebrations [1].
Sources
- science.nasa.gov · MAIA Air Sensor at Work in Addis Ababa Aug 24, 2026
- science.nasa.gov · Mapping Air Pollution With MAIA Sensors in Addis Ababa Aug 24, 2026
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