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El Attaf, nestled within the Aïn Defla province of Algeria, occupies a geographically significant position approximately 40 kilometers southwest of the capital, Algiers. Its coordinates (36.2167, 1.6667) place it within a gently undulating terrain, characterized by fertile plains and low hills, a typical feature of the Mitidja plain. This plain, a historically important agricultural region, stretches between the Tell Atlas Mountains to the north and the Saharan foothills to the south. El Attaf’s elevation, relatively modest, contributes to its susceptibility to temperature inversions, a key factor influencing air quality. The city’s proximity to Algiers, a major industrial and transportation hub, means it’s inevitably influenced by urban sprawl and associated pollution. The surrounding landscape is predominantly agricultural, with olive groves, vineyards, and cereal crops dominating the rural areas. This agricultural activity, while vital to the regional economy, can contribute to localized air pollution through the use of fertilizers and pesticides, and through seasonal burning practices. The urban–rural gradient transitions smoothly, with smaller villages and agricultural holdings interspersed amongst the expanding urban fabric. The absence of major rivers or lakes within immediate proximity limits natural air purification processes, making the city reliant on meteorological conditions and mitigation strategies for maintaining acceptable air quality. The prevailing winds, generally from the northwest, play a crucial role in dispersing pollutants, but can also carry pollution from Algiers and other industrial zones.

El Attaf’s air quality experiences a distinct seasonal pattern dictated by Algeria’s Mediterranean climate. The warm, dry summers (June-August) often see a build-up of pollutants due to stagnant air and intense solar radiation, which promotes photochemical smog formation. Temperature inversions are common during these months, trapping pollutants close to the ground, particularly in the evenings. Spring (March-May) and Autumn (September-November) generally offer the most favourable conditions, with moderate temperatures and more frequent wind patterns that help disperse pollutants. However, spring can also bring dust storms from the Sahara, significantly degrading air quality. Winter (December-February) presents a mixed picture. While cooler temperatures can reduce photochemical reactions, frequent fog and low-lying cloud cover, coupled with temperature inversions, can lead to periods of poor air quality, especially in the mornings. The agricultural cycle also impacts air quality; burning of crop residues after harvest, particularly in late summer and early autumn, contributes to particulate matter pollution. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor activity during periods of stagnant air, particularly in the summer months and during foggy winter mornings. Increased vigilance is advised during dust storm events, and those with pre-existing respiratory issues should consult their healthcare providers for guidance. Maintaining indoor air quality through proper ventilation and air filtration can also provide some protection during periods of elevated pollution.