Qahā Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Qahā, nestled within the Al Qalyūbīyah Governorate of Egypt, occupies a strategic position in the Nile Delta, approximately 25 kilometers north of Cairo. Its coordinates (30.2833, 31.2000) place it on relatively flat alluvial plains, characteristic of the Delta’s fertile landscape. The city’s elevation is low, averaging around 22 meters above sea level, contributing to limited atmospheric dispersion of pollutants. Qahā is closely linked to the Nile River and its extensive canal network, historically vital for irrigation and transportation, but also potentially influencing local humidity and pollutant deposition. Surrounding Qahā is a mix of intensely cultivated agricultural land – primarily cotton, wheat, and vegetables – and increasingly, peri-urban development extending from Greater Cairo. This urban-rural gradient is crucial; agricultural practices, including seasonal burning of crop residue, contribute to particulate matter. The proximity to Cairo’s industrial belts, particularly to the south, introduces a significant source of industrial emissions transported by prevailing winds. The city’s compact urban form, typical of many Egyptian towns, combined with increasing vehicle traffic, exacerbates localized air pollution. The Delta’s generally limited wind speeds further hinder pollutant dispersal, creating pockets of poorer air quality, especially during stable atmospheric conditions.

Qahā’s air quality follows a distinct seasonal pattern, heavily influenced by Egypt’s Mediterranean climate and agricultural cycles. Winter (December-February) often sees the poorest air quality. Temperature inversions are common, trapping pollutants near the ground, and increased burning of agricultural waste after the harvest contributes to high particulate matter concentrations. Calm winds further exacerbate the situation. Spring (March-May) brings some improvement as winds pick up, dispersing pollutants, but dust storms originating from the Western Desert can temporarily degrade air quality. Summer (June-August) is generally the cleanest period, with higher temperatures promoting atmospheric mixing and rainfall offering some pollutant washout, though humidity remains high. However, increased energy demand for cooling can lead to higher emissions from power plants. Autumn (September-November) sees a return to deteriorating conditions as agricultural burning resumes in preparation for the next planting season. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during winter and autumn months. Monitoring wind patterns and avoiding peak agricultural burning periods are advisable. Fog, common in winter mornings, can also trap pollutants, requiring extra caution.