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Az Zuwāydah, nestled within the Gaza Strip, occupies a geographically constrained and intensely urbanized area along the Mediterranean coast. Its coordinates (31.4395, 34.3805) place it within a low-lying coastal plain, characterized by flat terrain and sandy soils. The city’s immediate surroundings are dominated by a dense network of residential buildings and limited green spaces, typical of Gaza’s high population density. The Gaza Strip itself is a narrow territory bordered by Israel to the east and north, Egypt to the southwest, and the Mediterranean Sea to the west. This limited spatial extent significantly influences air quality dynamics. The proximity to the sea introduces a maritime influence, with sea breezes potentially dispersing pollutants, but also contributing to humidity and fog, which can trap them under certain conditions. To the east, the Negev Desert forms a significant landscape feature, occasionally contributing dust and sand events carried by prevailing winds. Agricultural zones, primarily focused on fruit and vegetable cultivation, are present in the surrounding areas, though their impact on air quality is complex, involving both potential emissions from fertilizers and pesticides and the removal of pollutants through plant uptake. The urban–rural gradient is abrupt; Az Zuwāydah transitions almost immediately from densely built-up areas to smaller agricultural plots and more sparsely populated zones. The lack of extensive natural buffers and the high concentration of human activity create a challenging environment for maintaining clean air, exacerbated by the region’s geopolitical situation and limited infrastructure.

Air quality in Az Zuwāydah exhibits a distinct seasonal pattern dictated by the region’s Mediterranean climate. Winters (November to March) are generally characterized by cooler temperatures and increased rainfall, which can help to cleanse the atmosphere through precipitation washing away particulate matter. However, these months also frequently experience periods of fog and low cloud cover, particularly along the coast, leading to temperature inversions. These inversions trap pollutants close to the ground, potentially exacerbating respiratory issues. Spring (April to May) sees a gradual warming and a rise in dust events originating from the Negev Desert, impacting air clarity and increasing particulate concentrations. Summer (June to September) is typically hot and dry, with relatively stable atmospheric conditions. While sea breezes can provide some ventilation, the lack of rainfall and high temperatures can contribute to ozone formation, a secondary pollutant. Autumn (October) marks a transition period, with shifting wind patterns and a return of cooler temperatures, but also a potential for increased dust from the desert. Sensitive groups, including children, the elderly, and individuals with pre-existing respiratory conditions, should exercise caution during periods of fog and dust storms, limiting outdoor activity and ensuring adequate ventilation indoors. During the warmer months, avoiding strenuous outdoor exercise during peak sunlight hours is advisable. The overall air quality is heavily influenced by regional factors and occasional conflict-related events, making consistent prediction challenging.