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Al Fāw, a coastal city in the Al Başrah Governorate of Iraq, occupies a strategically vital position on the Shatt al-Arab river, formed by the confluence of the Tigris and Euphrates rivers. Its location, at approximately 29.98°N, 48.47°E, places it within a low-lying deltaic plain, characterized by flat, alluvial terrain and a gradual urban–rural gradient extending outwards towards the Mesopotamian marshes. The surrounding landscape is dominated by agricultural lands, primarily date palm groves and cultivated fields, interspersed with areas of reed beds and wetlands, remnants of the historically extensive marshlands. Elevation is minimal, rarely exceeding a few meters above sea level, contributing to a tendency for pollutants to accumulate near the surface. The city’s proximity to the Shatt al-Arab significantly influences its microclimate and air quality; the river can act as a transport pathway for pollutants, both waterborne and airborne, and its presence can also lead to localized humidity and fog formation. Upstream, the industrial belt surrounding Al Başrah city introduces further sources of air pollution, which can be advected towards Al Fāw. The prevailing winds, often originating from the northwest, play a crucial role in dispersing or concentrating these pollutants. The flat topography limits vertical mixing, exacerbating the potential for ground-level ozone and particulate matter accumulation. The city’s urban character is relatively compact, with a mix of residential and commercial areas, and limited heavy industry within Al Fāw itself, though its reliance on agricultural inputs and proximity to larger industrial centers makes it susceptible to external pollution influences.

Al Fāw’s air quality experiences a distinct seasonal pattern dictated by its subtropical climate and prevailing meteorological conditions. The warmer months, typically from May to September, are characterized by high temperatures and reduced precipitation, leading to increased photochemical smog formation. Intense solar radiation drives the reactions between nitrogen oxides and volatile organic compounds, resulting in elevated ozone levels. Furthermore, the lack of rainfall during this period allows accumulated dust and particulate matter to persist in the atmosphere. The summer months often see stagnant air conditions, particularly during heatwaves, which can trap pollutants close to the ground. Conversely, the cooler months (October to April) generally bring improved air quality, although this is not uniform. Winter months can experience periods of fog, particularly in December and January, which, while reducing visibility, can also trap pollutants, leading to localized spikes in particulate matter. The Shamal winds, frequent during the spring (March-April), offer periods of relief by dispersing pollutants, but can also stir up dust from agricultural lands, temporarily increasing particulate concentrations. Individuals with respiratory conditions, such as asthma, should exercise caution during the summer months and be mindful of potential fog-related pollution spikes in winter. Children and the elderly are particularly vulnerable and should limit prolonged outdoor exposure during periods of poor air quality. Staying indoors with air filtration systems and monitoring local air quality reports are recommended strategies for mitigating exposure.