Es Senia Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Es Senia, a vibrant city within the Oran Province of Algeria, occupies a strategic position along the Mediterranean coastline. Located at approximately 35.65°N latitude and -0.63°W longitude, the city benefits from a temperate Mediterranean climate, but also faces unique geographical challenges impacting air quality. The terrain is characterised by a gentle slope rising from the coast towards the Tell Atlas mountains, creating localized variations in air circulation. Es Senia is situated near Oran, a major port city and industrial hub, meaning it experiences spillover effects from industrial emissions. The surrounding landscape is a mix of agricultural land – primarily vineyards and olive groves – and increasingly, urban sprawl. The proximity to the Mediterranean Sea moderates temperatures but can also contribute to humidity and fog formation, trapping pollutants. The urban-rural gradient is relatively steep, with denser residential and commercial areas concentrated near the coast, transitioning to more open agricultural land further inland. This gradient influences pollutant dispersion patterns, with higher concentrations typically found in the city centre. The prevailing winds, often from the west, carry maritime air but can also transport pollutants from the industrial zones of Oran, impacting Es Senia’s air quality.

Es Senia’s air quality follows a distinct seasonal pattern dictated by meteorological conditions and human activity. Summer (June-August) often sees relatively cleaner air, driven by consistent sea breezes that disperse pollutants. However, high temperatures can promote ground-level ozone formation, particularly during periods of intense sunlight. Autumn (September-November) brings a transition period, with decreasing wind speeds and the onset of temperature inversions, trapping pollutants closer to the ground. This can lead to increased particulate matter concentrations from agricultural burning and domestic heating. Winter (December-February) is typically the period of poorest air quality. Reduced sunlight, stagnant air masses, and increased reliance on fossil fuels for heating contribute to higher levels of particulate matter (PM2.5 and PM10) and nitrogen dioxide. Fog, common during winter mornings, exacerbates the problem by limiting dispersion. Spring (March-May) sees improving conditions as temperatures rise and winds become more frequent, though occasional dust storms originating from the Sahara Desert can temporarily degrade air quality. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during winter and periods of Saharan dust intrusion. Avoiding peak traffic hours is also advisable.