Kongoussi Air Quality Index (AQI)

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Kongoussi, situated in the Centre-Nord region of Burkina Faso at approximately 13.3333°N, -1.5333°W, is a town deeply embedded within the Sahelian landscape. The terrain is generally flat to gently undulating, characteristic of the broader Volta Plateau, with an elevation around 280-300 meters. This relatively low elevation contributes to limited atmospheric dispersion of pollutants. The town isn’t proximate to major bodies of water; it lies inland, influenced by the seasonal flow patterns of smaller, ephemeral streams. Kongoussi functions as a crucial market centre for the surrounding agricultural zones, primarily focused on millet, sorghum, and cotton production. This agricultural activity, while vital to the local economy, introduces particulate matter from land preparation, harvesting, and the burning of agricultural residue. The urban-rural gradient is pronounced, with a clear transition from denser settlement in the town centre to more dispersed rural communities and farmland. Dust from unpaved roads and open fields is a significant contributor to baseline particulate levels. The lack of substantial industrial development within Kongoussi itself means that the primary air quality concerns stem from localized sources and regional dust transport, exacerbated by the dry climate and wind patterns. The surrounding savannah vegetation offers limited natural filtration.

Kongoussi experiences a distinct wet and dry season, heavily influencing its air quality. The dry season, roughly November to May, is characterized by consistently high levels of particulate matter. Harmattan winds, originating from the Sahara, transport significant quantities of dust southward, dramatically reducing visibility and increasing PM10 and PM2.5 concentrations. January to March are typically the worst months for respiratory health, with dry, dusty conditions prevailing. The transition to the wet season, June to August, brings a temporary improvement in air quality as rainfall suppresses dust and washes pollutants from the atmosphere. However, increased humidity can also promote the growth of mold and allergens. September and October see a gradual return to drier conditions, with a corresponding increase in dust levels. Temperature inversions, common during the cooler, drier months, trap pollutants near the ground, worsening air quality. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit strenuous outdoor activity during the peak of the dry season. Monitoring local weather patterns and avoiding periods of high wind and dust is crucial for protecting respiratory health. The wet season offers a brief respite, but vigilance regarding mold and allergens remains important.