Bangassi-Nangou Weather
Loading current temperature, humidity, wind, and air quality context for Bangassi-Nangou, Kayes, Mali.
Loading current temperature, humidity, wind, and air quality context for Bangassi-Nangou, Kayes, Mali.
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Bangassi-Nangou, nestled within the Kayes 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 14.4961° N, 11.5078° W, the city’s terrain is characterized by gently undulating plains, part of the larger Bani Ullo plain, with elevations rarely exceeding 300 meters above sea level. This relatively flat landscape, while facilitating urban expansion, can also contribute to air stagnation, particularly during periods of low wind. The surrounding landscape is dominated by sparse vegetation typical of the Sahel – acacia woodlands, grasses, and scrub – interspersed with agricultural fields. The Niger River, though not directly adjacent, influences the regional climate and indirectly impacts air quality through moisture content and potential for localized humidity. The Kayes Region is a significant agricultural area, with cotton farming being a dominant activity; this agricultural belt, located within a few kilometers of Bangassi-Nangou, introduces potential sources of particulate matter from soil erosion and pesticide application. The urban–rural gradient is relatively sharp, with the city transitioning quickly into the Sahelian landscape. The lack of significant topographic barriers means that pollutants released within Bangassi-Nangou can readily disperse, but also that regional dust storms, a common occurrence in the Sahel, can significantly impact local air quality. The city’s position on the edge of the desert makes it vulnerable to incursions of Saharan dust, a major contributor to particulate pollution.
Bangassi-Nangou experiences a distinct wet and dry season pattern, profoundly influencing its air quality. The dry season, typically spanning from November to May, is characterized by intense solar radiation, high temperatures, and significantly reduced rainfall. This period often sees a marked increase in particulate matter concentrations, largely due to windblown dust from the surrounding Sahelian landscape. Strong, dry winds, common during this season, readily lift fine particles, exacerbating respiratory issues. Temperature inversions, while less frequent than in more temperate climates, can occasionally trap pollutants near the ground, particularly during cooler nights. The harmattan wind, a dry, dusty trade wind blowing from the Sahara, frequently impacts Bangassi-Nangou during the dry season, carrying significant amounts of dust and sand. The wet season, from June to October, brings relief from the dust, as rainfall washes pollutants from the atmosphere and increased humidity helps to settle particulate matter. However, agricultural activities during this period, including burning of crop residues, can introduce localized sources of smoke and pollutants. Fog, though infrequent, can occur during the transition periods, trapping pollutants and reducing visibility. Sensitive groups, including children, the elderly, and individuals with pre-existing respiratory conditions, should exercise caution during the dry season, limiting outdoor activity during peak dust events. During the wet season, while overall air quality improves, vigilance regarding smoke from agricultural practices remains important.
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