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Bouskoura, situated within the Casablanca-Settat region of Morocco, occupies a strategic position approximately 25 kilometers southeast of Casablanca, the nation’s economic hub. The city’s coordinates (33.4489, -7.6486) place it on the Atlantic Coastal Plain, though slightly inland, transitioning from the fertile plains towards the foothills of the High Atlas Mountains. The terrain is generally flat to gently undulating, composed of alluvial deposits and sedimentary rock. This relatively low elevation, averaging around 70 meters above sea level, contributes to the potential for temperature inversions, trapping pollutants. Bouskoura’s location benefits from a Mediterranean climate, but its proximity to Casablanca exposes it to the industrial emissions and traffic congestion of a major metropolitan area. Surrounding Bouskoura are agricultural lands, primarily dedicated to citrus fruits and vegetable farming, which, while providing local food security, can contribute to seasonal particulate matter from agricultural practices like burning crop residue. The urban-rural gradient is becoming increasingly blurred as Casablanca expands, leading to increased commuter traffic and associated vehicle emissions. The Atlantic Ocean exerts a moderating influence on temperatures, but also delivers moisture that can exacerbate pollution events under specific meteorological conditions. Understanding this interplay of geography and regional development is crucial for addressing Bouskoura’s air quality challenges.

Bouskoura’s air quality follows a distinct seasonal pattern. Summer (June-August) often sees a slight improvement due to prevailing northwesterly winds from the Atlantic, dispersing pollutants. However, high temperatures can promote the formation of ground-level ozone, particularly during periods of intense sunlight and stagnant air. Autumn (September-November) marks a transition, with decreasing wind speeds and the onset of temperature inversions, trapping pollutants closer to the ground. This period can see a noticeable decline in air quality, especially with the start of heating season. Winter (December-February) is typically the most challenging time, characterized by increased use of solid fuels for heating, combined with persistent temperature inversions and reduced atmospheric mixing. Fog, common during these months, further exacerbates particulate matter concentrations. Spring (March-May) brings a gradual improvement as temperatures rise and winds become more frequent, though dust storms originating from the Sahara Desert can occasionally impact air quality. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during winter and autumn months. Monitoring wind patterns and avoiding peak traffic hours are advisable throughout the year. Local agricultural burning in the autumn also contributes to temporary spikes in pollution.