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Luena, the capital of Angola's Moxico Province, occupies a strategic position in the vast Central African Plateau at approximately 1,100 meters above sea level, which significantly influences its air quality dynamics. Situated in the heart of southeastern Angola near the border with the Democratic Republic of Congo, the city lies within the Upper Zambezi Basin, with the Luena River flowing nearby, though not large enough to substantially moderate pollution. The surrounding landscape transitions from urbanized areas to expansive miombo woodlands and savannas, creating an urban–rural gradient where biomass burning from agricultural clearing and domestic fuel use can drift into the city. Luena's terrain is predominantly flat to gently rolling, which, combined with its inland location far from ocean breezes, allows pollutants to accumulate under stable atmospheric conditions. As a regional administrative and commercial hub, the city experiences pollution from general urban sources like vehicle emissions, unpaved road dust, and small-scale industries, exacerbated by limited pollution control infrastructure. Its position in a relatively remote part of Africa means long-range transport of dust or smoke from distant fires is less common, but local activities dominate air quality concerns. The elevation provides some natural ventilation compared to lower basins, yet temperature inversions during cooler months can trap pollutants near the surface, affecting respiratory health in this growing city of over 350,000 people.

Luena experiences a tropical savanna climate with distinct wet and dry seasons that shape its air quality patterns throughout the year. During the dry season from May to September, pollution typically peaks due to increased dust from unpaved roads, agricultural burning, and domestic biomass use for heating and cooking, compounded by lower humidity and occasional temperature inversions that trap pollutants near the ground. This period, especially June to August, sees the highest particulate levels, making it less favorable for outdoor activities, with sensitive groups like children and the elderly advised to limit exposure. The wet season from October to April brings relief as rainfall scrubs the air of pollutants, reducing dust and smoke, though occasional haze may persist early in the season from lingering fires. From December to February, cooler temperatures and higher humidity can lead to morning fog, which may temporarily elevate pollution by trapping emissions, but overall air quality improves. Wind patterns are generally mild, with easterly breezes offering some dispersion, but not strong enough to consistently clear pollutants. For the best air quality, plan outdoor activities from November to January when rains have settled dust and burning is minimal. Health guidance emphasizes monitoring local conditions during peak dry months, using masks on dusty days, and ensuring indoor ventilation is optimized to reduce indoor pollution from cooking fuels.