Ighram Air Quality Index (AQI)

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Ighram, nestled within the Tizi Ouzou province of Algeria, is a municipality deeply embedded in the Kabylie Mountains. Located at approximately 36.4667°N, 4.5167°E, the city occupies a rugged, elevated terrain, typical of the region. Its altitude, averaging around 800-1200 meters above sea level, significantly influences its climate and, consequently, its air quality. Ighram isn’t situated directly on the coast, but is within reasonable proximity to the Mediterranean Sea, approximately 60-80 kilometers distant, meaning maritime influences are present but moderated by the mountainous barrier. The surrounding landscape is characterised by dense forests of oak and pine, interspersed with agricultural terraces carved into the hillsides. While Ighram itself isn’t a major industrial hub, the broader Tizi Ouzou province experiences some localised industrial activity, primarily related to food processing and small-scale manufacturing. The urban-rural gradient is steep; Ighram is a relatively small town, quickly transitioning to rural agricultural land and forested mountains. This topography creates localized air stagnation points, trapping pollutants during calm weather conditions. The prevailing winds, often channeling through valleys, can both disperse and concentrate airborne particles depending on their direction and speed. The lack of extensive flat land limits natural ventilation, exacerbating pollution episodes.

Ighram’s air quality follows a distinct seasonal pattern, heavily influenced by meteorological conditions. Spring (March-May) sees a gradual improvement after the winter, but can be punctuated by dust storms originating from the Sahara, carried by the Sirocco wind. These events significantly elevate particulate matter levels. Summer (June-August) is generally the clearest period, with prevailing winds aiding dispersion and higher temperatures promoting atmospheric mixing. However, increased agricultural activity, including burning of stubble after harvest, can lead to localised smoke pollution. Autumn (September-November) marks a transition, with decreasing temperatures and increasing atmospheric stability. This often leads to temperature inversions, trapping pollutants near the ground, particularly in the valleys surrounding Ighram. Rainfall increases during this period, which can temporarily cleanse the air, but also creates damp conditions conducive to mould growth. Winter (December-February) is typically the worst period for air quality. Reduced sunlight, colder temperatures, and frequent calm conditions promote pollutant accumulation. Wood burning for heating is a major contributor to particulate matter. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during calm, cold winter days and periods of Saharan dust intrusion. Monitoring wind direction is crucial; winds from the south bring dust, while northerly winds offer cleaner air.