environment 2 September 2026 Daily Monitor (Uganda)
Kampala's Air Quality Improves Slightly During Defective Vehicle Crackdown
Air quality in Kampala saw a noticeable improvement of around 12 percentage points during a recent crackdown on mechanically defective taxis. However, pollution levels remain significantly above World Health Organization guidelines. Source: https://www.monitor.co.ug/uganda/news/national/kampala-pollution-drops-amid-dmc-taxi-crackdown-5580444
Recent data from AirQo, Africa’s air quality monitoring network, indicates that Kampala’s air quality improved by approximately 12% during a targeted operation against taxis in dangerous mechanical condition (DMC). The crackdown, which began in late August, saw a reduction in average PM2.5 levels from 36.8 µg/m³ to 32.4 µg/m³.
Experts, including Dr. Ivan Kimuli, a physician at Makerere University Lung Institute, emphasize the detrimental health effects of vehicle emissions. Poorly maintained vehicles release harmful pollutants like particulate matter, carbon monoxide, and nitrogen oxides, which can irritate airways, worsen asthma, and contribute to respiratory and cardiovascular diseases with prolonged exposure.
Despite the improvement, pollution levels still far exceed the World Health Organization’s tolerable 24-hour PM2.5 level of 15µg/m³. AirQo data shows that even during the crackdown week, PM2.5 levels were more than double the recommended limit, classifying Kampala’s air quality as “Moderate.” This suggests that while the crackdown had a positive impact, it was insufficient to bring air quality to safe levels.
Scientists like Dr. Steven Reynolds highlight that Kampala’s air pollution is multifactorial, with vehicles being a major contributor, but not the sole cause. Other factors include garbage burning and the loss of green spaces. Dr. Joel Mirembe Nsubuga advocates for mandatory periodic emissions testing for all vehicles, not just visually defective ones, as incomplete fuel combustion can also lead to excessive emissions.
Authorities are implementing measures such as introducing electric buses and promoting cleaner transport options. However, experts stress the need for a comprehensive approach, including stricter regulations on industrial emissions, promoting electric vehicles, and preserving green spaces, to achieve lasting improvements in air quality. The data collected by AirQo is crucial for informing these policy decisions.
Source: Daily Monitor (Uganda)