Samannūd Air Quality Index (AQI)

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Samannūd, situated in the Al Gharbīyah Governorate of Egypt at approximately 30.9622°N, 31.2425°E, occupies a crucial position within the Nile Delta. The city’s landscape is overwhelmingly flat, characteristic of alluvial plains formed by centuries of Nile sedimentation. Elevation is minimal, barely rising above sea level, making it vulnerable to localised flooding during periods of heavy rainfall or Nile overflow. Samannūd is interwoven with a dense network of irrigation canals (khaligs) branching from the Nile, supporting intensive agricultural practices. This agricultural dominance – primarily rice, wheat, and cotton – significantly influences local air quality through seasonal burning of crop residue and the use of agricultural chemicals. The urban character is a blend of traditional mud-brick housing and more modern concrete structures, typical of rapidly growing Egyptian towns. Surrounding Samannūd is a largely rural landscape, transitioning to denser agricultural zones closer to the Nile. While not a major industrial hub itself, Samannūd’s proximity to larger industrial areas further up the Nile, and the associated transport networks, contributes to regional pollution dispersal. The urban-rural gradient is relatively sharp, with air quality generally deteriorating towards the city centre due to traffic and domestic fuel combustion.

Samannūd experiences a hot desert climate, with distinct seasonal variations impacting air quality. The summer months (May-September) bring intense heat and stagnant air, often trapping pollutants from agricultural activities and vehicle emissions. Dust storms, originating from the Western Desert, are frequent during these months, exacerbating particulate matter concentrations. October-April represents the cooler, wetter season, offering temporary relief. However, temperature inversions during the cooler nights can still trap pollutants near ground level. November and December often see increased humidity and fog, potentially increasing respiratory irritation. The peak pollution periods generally coincide with the harvest seasons – particularly after the rice harvest in late summer/early autumn when stubble burning is prevalent. Sensitive groups, including children, the elderly, and those with respiratory conditions, should limit strenuous outdoor activity during these times. Spring (March-April) offers the most favourable conditions, with moderate temperatures and increased wind dispersal. The khamsin winds, hot and dry winds blowing from the Sahara, can occur sporadically throughout the year, bringing significant dust and sand, and should be avoided. Monitoring local conditions and heeding health advisories is crucial.