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El Bordj, nestled within the Mascara State of Algeria, occupies a geographically significant position on the northwestern edge of the Sahara Desert, approximately 35.5158° N, 0.3017° E. The town’s setting is characterized by a gently undulating terrain, part of the Tell Atlas foothills, rising to an elevation of around 350 meters above sea level. This location places it within a transitional zone between the coastal plains and the more arid Saharan landscape. The surrounding area is a mosaic of agricultural land, primarily dedicated to cereal cultivation and olive groves, interspersed with pockets of semi-arid scrubland. To the west, the fertile plains gradually give way to the desert’s expanse, while to the east, the foothills rise more steeply. El Bordj benefits from proximity to the Mediterranean Sea, roughly 60 kilometers distant, which influences local weather patterns and can, under certain conditions, provide a degree of coastal breeze. The town itself exhibits a relatively low-density urban character, with a mix of traditional Algerian architecture and more modern constructions. There are no major industrial belts immediately adjacent to El Bordj; however, Mascara, a larger urban center, lies approximately 20 kilometers to the southeast, and its industrial activities, including food processing and some light manufacturing, can contribute to regional air quality concerns. The urban-rural gradient is gradual, with agricultural activities seamlessly blending into the town's periphery, impacting local dust levels and potential pesticide drift.

El Bordj experiences a Mediterranean climate with distinct seasonal variations that significantly impact air quality. The dry, hot summers (June-August) are often characterized by stagnant air conditions and elevated particulate matter. Intense solar radiation increases ground-level ozone formation, particularly during periods of minimal wind. Temperature inversions, common during these months, trap pollutants near the surface, exacerbating the issue. Spring (March-May) brings a slight improvement as winds increase, dispersing some pollutants, but dust storms originating from the Sahara remain a risk, particularly in April and May, significantly degrading air quality. Autumn (September-November) sees a gradual cooling and increased rainfall, which helps to cleanse the atmosphere and reduce particulate concentrations. However, agricultural burning practices, common during harvest season, can temporarily elevate smoke levels. Winter (December-February) is generally the most favourable period for air quality, with cooler temperatures, more frequent rainfall, and stronger winds. Fog, however, can occasionally form, trapping pollutants in localized areas. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor exertion during the hot, dry summer months and be mindful of dust storm warnings in spring. Agricultural workers should be aware of potential pesticide exposure during the growing season and take appropriate precautions. Overall, minimizing outdoor activities during the hottest parts of the day in summer and avoiding areas with visible smoke from agricultural burning are advisable.