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Ben Taieb, nestled within Morocco’s Oriental region at coordinates 35.0837, -3.4696, is a small city of approximately 15,002 inhabitants. Its location is characterised by a semi-arid climate and a landscape transitioning between the foothills of the Atlas Mountains and the plains leading towards the Mediterranean Sea. The terrain is gently undulating, with elevations ranging from approximately 150 to 300 meters above sea level. This positioning influences air quality significantly. The city isn’t directly coastal, but is close enough to experience some maritime influence, though this is often overridden by continental air masses. Surrounding Ben Taieb are predominantly agricultural lands, primarily dedicated to cereal crops and olive groves, with some small-scale livestock farming. The urban-rural gradient is quite sharp; the city itself is relatively compact, quickly giving way to open countryside. While not a major industrial hub, regional agricultural processing and small workshops contribute to localised emissions. Dust from agricultural activities and unpaved roads is a consistent factor. The prevailing winds, often from the west or northwest, can transport pollutants from larger urban centres further inland, impacting Ben Taieb’s air quality. Topography funnels airflows, potentially creating localised pockets of stagnation and pollutant concentration.

Air quality in Ben Taieb follows a distinct seasonal pattern. Spring (March-May) sees a gradual improvement after the winter, but agricultural burning for land preparation can cause temporary spikes in particulate matter. Summer (June-August) is typically the clearest period, with hot, dry conditions and stronger winds dispersing pollutants. However, prolonged heatwaves can exacerbate ozone formation. Autumn (September-November) marks a deterioration as temperatures drop and atmospheric stability increases, trapping pollutants. This is also harvest season, with increased agricultural activity and associated dust. Winter (December-February) is often the worst period for air quality. Temperature inversions are common, creating a layer of cold, dense air that traps pollutants near the ground. Rainfall is infrequent, offering little natural cleansing. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during these winter months. The months of July and August generally offer the most favourable conditions for outdoor activities. Local dust storms, known as ‘chergui’, can occur at any time of year, but are more frequent in spring and autumn, significantly impacting visibility and respiratory health. Monitoring wind direction is crucial, as pollutants from larger cities can be transported to Ben Taieb.