Addis Ababa Air Quality Index (AQI)

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Addis Ababa, Ethiopia's capital and largest city, occupies a strategic position in the central highlands of Africa at an elevation of approximately 2,355 meters (7,726 feet) above sea level, making it one of the highest capitals globally. Nestled within the Entoto Mountains to the north and surrounded by rolling hills and valleys, the city's topography creates a natural basin that traps pollutants, exacerbating air quality challenges. The urban area sprawls across a plateau with limited natural ventilation, as the surrounding mountain ranges inhibit wind dispersion of contaminants. Proximity to the Awash River basin to the east introduces agricultural zones where biomass burning occasionally contributes to regional haze, while the city itself lacks major water bodies that might help cleanse the air. Addis Ababa functions as the economic and industrial hub of Ethiopia, with manufacturing belts concentrated in the eastern and southern districts, including textile factories, cement plants, and eucalyptus processing facilities that emit particulates and gases. The urban-rural gradient is sharp, with densely populated central zones transitioning rapidly to peri-urban areas where domestic use of charcoal and biomass for cooking is prevalent, adding to the pollution burden. This geographic setting, combined with rapid urbanization and construction activity, creates a complex airshed where emissions from vehicles, industry, and domestic sources accumulate, particularly during dry seasons when natural cleansing by rainfall is minimal.

Addis Ababa's air quality follows a distinct seasonal pattern shaped by its subtropical highland climate, with pollution peaking dramatically during the dry season from November to February. In these months, reduced rainfall and frequent temperature inversions trap pollutants close to the ground, leading to hazy conditions exacerbated by vehicle exhaust, industrial emissions, and road dust. Sensitive groups, such as children, the elderly, and those with respiratory conditions, should limit outdoor activities during this period, especially in the mornings when inversions are strongest. The wet season from June to September brings relief, as monsoon rains wash pollutants from the air, resulting in clearer skies and lower pollution levels—ideal for outdoor pursuits like hiking in the Entoto Hills. However, occasional hailstorms and flooding can stir up dust and debris, causing temporary spikes in particulate matter. Transitional months like March to May and October see moderate pollution, with variable winds from the northeast occasionally dispersing emissions, though biomass burning in surrounding agricultural areas may contribute to regional haze. Fog is common in the cooler dry months, often mixing with pollution to form smog that reduces visibility and air quality. To mitigate health risks, residents are advised to monitor local air quality reports, use air purifiers indoors during peak pollution months, and schedule outdoor exercise for afternoons when inversions typically lift.