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Kenndié, nestled within the Mopti Region of Mali, occupies a geographically significant position on the edge of the Sahel, a transitional zone between the Sahara Desert and the Sudanian Savanna. Located at approximately 14.7006° latitude and -3.4178° longitude, the town sits on relatively flat terrain, typical of the inland Niger Delta region. The surrounding landscape is dominated by expansive floodplains and grasslands, punctuated by the Niger River and its associated waterways. This proximity to the Niger River, while providing a vital water source for agriculture and daily life, also influences local air quality through the potential for moisture-laden air and occasional river mists. The urban character of Kenndié is primarily rural, with a small population of 24,359, reflecting its role as a market town and agricultural hub. The dominant land use is subsistence farming, particularly rice cultivation, which relies heavily on the annual flooding cycle. There are no major industrial belts immediately adjacent to Kenndié; however, agricultural practices, including burning of crop residues after harvest, contribute to localized air pollution. The urban-rural gradient is gradual, with agricultural fields extending almost to the town's periphery. The elevation is low, generally below 200 meters above sea level, which can exacerbate temperature inversions during the cooler months, trapping pollutants closer to the ground. The prevailing winds are generally easterly, influenced by the broader regional weather patterns, impacting the dispersion of any emitted pollutants. The Sahelian climate, characterized by distinct wet and dry seasons, further shapes the local atmospheric conditions.

Kenndié’s air quality experiences a pronounced seasonal cycle dictated by its Sahelian climate. The wet season, typically spanning from June to September, brings increased humidity and frequent rainfall. While the rain itself can cleanse the atmosphere, the preceding period of intense agricultural activity, including land clearing and burning of vegetation, often leads to elevated particulate matter concentrations. The monsoon winds during this period can also transport dust and smoke from distant sources, further degrading air quality. The dry season, from October to May, is characterized by lower rainfall and higher temperatures. Temperature inversions are more common during the cooler months (November-February), trapping pollutants near the ground, particularly in the mornings. Dust storms, a frequent occurrence in the Sahel, can significantly impact air quality, especially during March and April, when winds are strongest. The intense heat during the peak of the dry season (April-May) can exacerbate the effects of any existing pollutants. During the transition months (May and October), air quality is generally more variable, influenced by shifting wind patterns and the onset or retreat of the monsoon. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during periods of high dust or smoke, particularly during the burning season and during dust storm events. Outdoor activities are generally best enjoyed during the wetter months, although agricultural burning can still pose a risk. The morning hours during the dry season often exhibit poorer air quality due to temperature inversions, so limiting strenuous outdoor activity during these times is advisable.