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Sabara Bangou, nestled within the Tillabéri Region of Niger, occupies a geographically significant position on the southern edge of the Aïr Mountains, a dramatic highland formation that profoundly shapes its environment. Located at approximately 15.1197° N, 2.0006° E, the city sits at an elevation of roughly 250 meters above sea level, placing it within a transitional zone between the Sahelian plains and the mountainous terrain. The surrounding landscape is characterized by a mix of semi-arid grasslands, sparsely vegetated scrubland, and rocky outcrops, typical of the Sahel. While not directly adjacent to a major river, the Niger River lies within a reasonable distance to the south, influencing regional climate patterns and providing a vital water source for agriculture. The urban fabric of Sabara Bangou is relatively compact, reflecting its role as a regional market town and administrative center. The urban–rural gradient is gradual, with agricultural fields and small villages blending seamlessly into the city's periphery. The proximity to the Aïr Mountains creates a localized rain shadow effect, reducing rainfall compared to areas further east. This drier climate, combined with prevailing winds from the Sahara, contributes to dust intrusion and influences air quality. Agricultural activities, particularly the cultivation of millet and sorghum, are prevalent in the surrounding areas, and seasonal burning practices associated with land clearing can significantly impact local air pollution levels. The city’s location within a broader agricultural belt means that agricultural emissions are a key factor in its air quality profile.

Sabara Bangou experiences a distinct dry and wet season pattern, profoundly impacting its air quality throughout the year. The dry season, spanning roughly from November to May, is characterized by intense solar radiation, low humidity, and frequent dust storms originating from the Sahara and the Bodélé Depression. These events, often occurring in February and March, dramatically reduce visibility and elevate particulate matter concentrations. Temperature inversions, common during the cooler nights of the dry season, can trap pollutants near the ground, exacerbating air quality issues. The Harmattan wind, a dry, dusty trade wind, further contributes to the influx of Saharan dust. The wet season, from June to October, brings a temporary respite from dust, as rainfall washes pollutants from the atmosphere and increased humidity helps to settle particulate matter. However, agricultural burning, a common practice for land preparation, becomes more prevalent during this period, releasing significant amounts of smoke and other pollutants. The intensity of rainfall and wind patterns during the wet season also influence the dispersion of these emissions. During the transition months (May and November), air quality can be particularly variable, influenced by shifting wind patterns and the interplay between dry and wet season conditions. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, limiting outdoor activity during dust storm events and periods of stagnant air. The wet season requires awareness of smoke from agricultural burning, particularly in areas downwind of agricultural fields.