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Bandar ‘Abbās, the capital of Hormozgān Province in southern Iran, occupies a strategic coastal position on the northern shore of the Strait of Hormuz, where the Persian Gulf meets the Gulf of Oman. This port city sits at a low elevation of approximately 10 meters above sea level, nestled between the Zagros Mountains to the northwest and the vast waters to the south, creating a unique urban–rural gradient that transitions abruptly from dense port infrastructure to arid hinterlands. The city's geography profoundly influences its air quality: its location in a narrow coastal plain traps pollutants from urban activities, including shipping, port operations, and vehicular traffic, while limited natural ventilation exacerbates accumulation. Proximity to the Strait of Hormuz, one of the world's busiest maritime chokepoints, introduces emissions from heavy ship traffic, blending with local sources like general urban combustion and dust from surrounding desert areas. The terrain, characterized by flat coastal plains with sparse vegetation, offers little topographic relief to disperse pollutants, and the urban heat island effect in this hot climate can intensify chemical reactions in the atmosphere. Agricultural zones are minimal nearby, reducing biogenic emissions, but industrial activities linked to the port and regional oil refining contribute to a complex pollution mix, making Bandar ‘Abbās's air quality a product of its pivotal yet constrained geographic setting.

In Bandar ‘Abbās, air quality fluctuates seasonally due to its arid coastal climate, with pollution patterns shaped by meteorological factors rather than extreme weather hazards. During winter (December to February), cooler temperatures and occasional temperature inversions trap pollutants near the surface, leading to higher concentrations, especially in calm conditions; this period may see increased respiratory risks for sensitive groups like children and the elderly, who should limit outdoor exertion on still days. Spring (March to May) brings moderate winds from the northwest, aiding dispersion and generally improving air quality, making it a favourable time for outdoor activities, though dust storms from desert regions can occasionally spike particulate levels. Summer (June to August) is characterized by intense heat and high humidity, which can enhance the formation of secondary pollutants like ozone, while sea breezes provide some relief by mixing air; however, peak temperatures often drive people indoors, reducing exposure. Autumn (September to November) sees a transition with decreasing temperatures and variable winds, leading to mixed air quality conditions, but overall, pollution tends to be lower than in winter. Sensitive individuals should monitor local advisories and avoid strenuous activities during periods of low wind or high heat, with the best air quality typically occurring in spring and early autumn when natural ventilation is optimal.