Manouba Air Quality Index (AQI)

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Manouba, nestled in northern Tunisia, is a city defined by its undulating terrain and strategic position within the Medjerda River valley. Located approximately 20 kilometers west of Tunis, the capital, Manouba occupies a transitional zone between the coastal plains and the foothills of the Atlas Mountains. Its coordinates (36.8078, 10.1011) place it at an elevation of roughly 200 meters, influencing local wind patterns and contributing to temperature inversions during calmer periods. The surrounding landscape is predominantly agricultural, characterized by olive groves, citrus orchards, and cereal fields, which, while vital to the regional economy, can contribute to particulate matter pollution during harvest and agricultural burning. The city’s urban-rural gradient is relatively sharp, with densely populated residential areas giving way quickly to rural farmland. Proximity to Tunis creates a degree of air pollution ‘import’ via prevailing easterly winds, while local sources include traffic emissions and smaller-scale industrial activity. The Medjerda River, though a crucial water source, doesn’t significantly impact local air circulation patterns but influences humidity levels. Understanding this interplay of geography and land use is crucial for assessing and mitigating air quality challenges in Manouba.

Manouba’s air quality follows a distinct seasonal pattern dictated by Tunisia’s Mediterranean climate. Summer (June-August) often sees relatively cleaner air, driven by consistent north-easterly breezes that disperse pollutants. However, high temperatures can exacerbate ozone formation, particularly in areas with heavy traffic. Autumn (September-November) brings a deterioration in air quality as agricultural burning increases following the harvest season, releasing significant amounts of particulate matter. This period is often marked by stagnant air masses and temperature inversions, trapping pollutants near the ground. Winter (December-February) is generally the period of poorest air quality, with increased reliance on heating – often wood or other solid fuels – contributing to higher levels of particulate matter and sulfur dioxide. Fog, common during these months, further exacerbates the problem. Spring (March-May) sees a gradual improvement as temperatures rise and rainfall helps to cleanse the atmosphere. Sensitive groups, including children, the elderly, and those with respiratory conditions, should limit outdoor activity during autumn and winter months. Monitoring wind direction and avoiding peak agricultural burning times are advisable.