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Samālūţ, nestled within the Al Minyā Governorate of Egypt, occupies a geographically significant position along the western bank of the Nile River, approximately 120 kilometers south of Minyā city. Its coordinates, 28.3122° N, 30.7100° E, place it within the fertile Nile Valley, a landscape historically vital to Egyptian civilization. The city’s terrain is predominantly flat, characteristic of the river valley, with gentle slopes rising slightly away from the Nile’s edge. This flatness, while advantageous for agriculture, can exacerbate air quality issues by limiting atmospheric dispersion, particularly during periods of low wind. The surrounding landscape is a mosaic of agricultural fields – primarily sugarcane, cotton, and maize – interspersed with small villages and date palm groves. This intensive agricultural activity contributes to localized air pollution through the use of fertilizers, pesticides, and the burning of crop residues, especially during harvest seasons. The Nile itself acts as a moderating influence on the local climate, providing some humidity, but also potentially carrying pollutants downstream. Samālūţ’s urban character is that of a regional market town, with a relatively compact core and expanding residential areas. While not a major industrial hub, it serves as a service center for the surrounding agricultural region, with small-scale workshops and processing facilities present. The urban–rural gradient is gradual, with agricultural land quickly transitioning to urban development. The lack of significant elevation and the prevailing wind patterns, often influenced by regional weather systems, directly impact the city’s ability to naturally cleanse its air, making it susceptible to pollutant accumulation.

Samālūţ experiences a distinct hot, dry climate, significantly influencing its air quality throughout the year. The winter months (November to February) are generally the most pleasant for outdoor activities, characterized by cooler temperatures and slightly increased wind speeds, aiding in pollutant dispersal. However, fog is common during these months, trapping pollutants near the ground and potentially leading to localized air quality concerns. Spring (March to May) brings a gradual increase in temperature and dust storms originating from the Western Desert, which can significantly degrade air quality, introducing particulate matter and reducing visibility. Summer (June to August) is the most challenging period. Intense heat leads to atmospheric stability, frequently resulting in temperature inversions where a layer of warm air sits above cooler air, preventing vertical mixing and trapping pollutants close to the ground. Agricultural burning, a common practice during this season to clear fields for planting, further exacerbates the problem. The dry, stagnant air allows pollutants to accumulate. Autumn (September to October) sees a gradual cooling and a return to more stable weather patterns, with a continued risk of agricultural burning. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor exertion during the summer months and be mindful of dust storm events in the spring. Maintaining indoor air quality through proper ventilation and air filtration is crucial throughout the year, particularly during periods of elevated pollution.