Al Ḩusaynīyah Air Quality Index (AQI)

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Al Ḩusaynīyah, situated in Egypt’s Ash Sharqīyah Governorate, occupies a relatively flat expanse within the Nile Delta. Its coordinates (30.8617, 31.9181) place it inland, approximately 30 kilometers west of the Suez Canal and roughly 70 kilometers northeast of Cairo. The surrounding landscape is dominated by intensely cultivated agricultural land, primarily focused on rice, cotton, and wheat production. This agricultural intensity, while vital to the regional economy, contributes significantly to air quality concerns through the use of fertilizers, pesticides, and seasonal burning of agricultural residue. The elevation is low, averaging around 10 meters above sea level, making the city susceptible to humidity and temperature inversions. The proximity to the Suez Canal introduces potential for shipping-related emissions, though prevailing winds generally carry these pollutants eastward. The urban-rural gradient is relatively sharp; Al Ḩusaynīyah itself is a moderately sized town, but quickly transitions to dense agricultural fields. Dust storms, originating from the Western Desert, can also impact air quality, particularly during the Khamsin winds. The city’s location within the Delta limits natural ventilation, exacerbating pollution build-up. The dense population and limited infrastructure further compound these challenges.

Al Ḩusaynīyah experiences a hot desert climate, with distinct seasonal variations impacting air quality. Summer (June-August) brings intense heat and stagnant air, trapping pollutants from agricultural activities and vehicle emissions, leading to a noticeable decline in air quality. The lack of rainfall during these months prevents natural cleansing. Autumn (September-November) offers a brief respite, with cooler temperatures and occasional winds dispersing pollutants, though burning of post-harvest residue can temporarily worsen conditions. Winter (December-February) is generally the period of best air quality, benefiting from cooler temperatures, increased humidity, and occasional rainfall that helps to settle dust and pollutants. However, temperature inversions can still occur, trapping pollutants near the ground. Spring (March-May) sees a gradual increase in temperatures and agricultural activity, leading to a slow deterioration in air quality, culminating in the summer peak. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during the summer and spring months. Dust storms are most frequent in spring, necessitating mask use. Monitoring wind patterns is crucial; winds from the west bring desert dust, while easterly winds may carry pollutants from the Suez Canal area.