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Chouafaa, nestled within the Rabat-Sale-Kenitra region of Morocco, occupies a geographically significant position just south of the bustling capital city, Rabat. Located at approximately 34.76°N, 6.05°W, the town sits on a gently sloping plain, part of the larger Gharb plain, a fertile agricultural region. Its coordinates place it within a relatively low-elevation area, averaging around 30 meters above sea level, minimizing topographic influences on air circulation. The surrounding landscape is predominantly agricultural, characterized by extensive fields of wheat, corn, and other crops, interspersed with olive groves and fruit orchards. This proximity to intensive agricultural practices introduces potential sources of ammonia and particulate matter from fertilizer application and soil erosion, particularly during planting and harvesting seasons. Chouafaa’s location within the Gharb plain also means it’s influenced by the Atlantic coastal breezes, which can both disperse pollutants and, under certain conditions, trap them. The urban–rural gradient is gradual; Chouafaa itself is a small town, but its close proximity to Rabat means it experiences urban sprawl and associated traffic-related emissions. The Atlantic Ocean lies approximately 15 kilometers to the west, providing a potential pathway for marine aerosols and influencing humidity levels. The absence of significant hills or mountains around Chouafaa means that air pollutants tend to spread horizontally rather than being lifted and dispersed vertically, potentially leading to localized accumulation, especially during periods of atmospheric stability. The region's climate, characterized by warm, dry summers and mild, wet winters, further impacts air quality dynamics.

Chouafaa’s air quality experiences a distinct seasonal rhythm dictated by meteorological patterns and agricultural activities. Spring (March-May) sees a gradual increase in particulate matter as agricultural activities ramp up, with fertilizer application and tilling releasing dust and ammonia into the atmosphere. Wind patterns are generally variable during this period, sometimes providing adequate dispersion, but inversions can occasionally trap pollutants. Summer (June-August) is typically drier, with higher temperatures and calmer winds, which can lead to stagnant air and a build-up of pollutants, particularly from vehicle emissions and any industrial activity in the surrounding area. The intense solar radiation can also contribute to photochemical smog formation. Autumn (September-November) brings a shift in wind patterns, often with stronger, more consistent breezes from the Atlantic, which helps to clear the air. However, agricultural burning, a traditional practice in the region, can significantly degrade air quality during this time. Winter (December-February) is generally the cleanest season, with cooler temperatures and more frequent rainfall, which helps to wash pollutants from the atmosphere. Fog, however, can form under stable atmospheric conditions, trapping pollutants near the ground. Sensitive groups, such as children, the elderly, and individuals with respiratory conditions, should be particularly cautious during spring and summer, limiting outdoor exertion during peak pollution periods. Agricultural workers should prioritize protective equipment during planting and harvesting. Maintaining vehicle maintenance and reducing unnecessary travel can contribute to improved air quality throughout the year.