Understanding Nairobi?s Air
World Resources Institute
Download
Abstract: This multi-method assessment of air pollution in Nairobi integrates data from ambient sensors, spatial modeling, community exposure studies, and institutional interviews. It finds PM2.5 and black carbon levels far exceeding WHO limits, particularly near traffic and informal settlements. Nairobi?s monitoring relies heavily on low-cost sensors with limited calibration. Key emission sources are vehicular traffic, waste burning, diesel generators, and domestic cookstoves. Temporal trends show evening spikes, and vulnerable populations face disproportionate exposure. The report maps pollution levels using 2022 data and emphasizes urgency for emissions inventories, policy frameworks, community engagement, and technological upgrades. Nairobi is urged to strengthen governance and align urban planning with climate-health imperatives.