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Ganja, Azerbaijan's second-largest city, occupies a strategic position in the Ganja-Gazakh region of western Azerbaijan, nestled within the Kura River basin at an elevation of approximately 400 meters above sea level. The city's urban character blends historical architecture with Soviet-era industrial development, creating a distinct urban-rural gradient where dense central districts transition to agricultural peripheries. Situated between the Lesser Caucasus Mountains to the northwest and the Kura River plains to the southeast, Ganja's geography creates a semi-enclosed valley that significantly impacts air quality. The surrounding landscape features rolling foothills and agricultural zones, particularly to the east where croplands dominate, while industrial belts concentrate along transportation corridors and near the city's outskirts. Proximity to the Kura River provides some hydrological influence but insufficient to consistently disperse pollutants. This topographic setting, combined with the cold semi-arid climate, creates conditions where emissions from vehicles, the aluminium plant, construction activities, and residential heating become trapped, especially during seasonal temperature inversions. The city's position along major road networks exacerbates road dust and exhaust issues, while its regional role as an industrial and transportation hub intensifies pollution sources within the constrained valley environment.

Ganja's air quality follows a pronounced seasonal pattern shaped by its cold semi-arid climate and specific pollution sources. During winter months from November through January, pollution peaks dramatically as temperature inversions trap emissions from residential heating, vehicle exhaust, and industrial operations close to the ground. These cold months experience frequent fog and stagnant air conditions, making outdoor activities particularly hazardous for sensitive groups like children, elderly residents, and those with respiratory conditions. Spring brings gradual improvement as increased wind patterns from March through May help disperse pollutants, though construction dust and occasional strong winds can create temporary spikes in particulate matter. Summer offers the cleanest air from June through August, with warmer temperatures reducing heating emissions and more consistent ventilation patterns, making this the optimal season for outdoor activities. Autumn sees a gradual deterioration from September through October as temperatures drop and heating systems restart, with pollution building toward the winter peak. Sensitive groups should monitor air quality reports closely during transitional seasons and limit prolonged outdoor exposure during morning hours when inversion layers are strongest. The absence of monsoon systems means precipitation provides only temporary relief rather than sustained cleansing of the atmosphere.