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Kirkuk, situated in northern Iraq's Kirkuk Governorate at coordinates 35.4681°N, 44.3922°E, occupies a strategic position within the historic Mesopotamian plains, approximately 250 kilometres north of Baghdad. The city lies at an elevation of around 350 metres above sea level, nestled between the Zagros Mountains to the northeast and the vast Tigris River basin to the southwest, creating a transitional zone between mountainous terrain and arid lowlands. This geographic setting profoundly influences Kirkuk's air quality, as it sits within Iraq's northern oil belt, surrounded by extensive oil fields and refineries whose emissions are trapped by the city's topographic bowl-like formation. The urban area itself exhibits a distinct urban-rural gradient, with dense central neighbourhoods giving way to industrial peripheries and agricultural lands fed by the Lesser Zab River, which flows south of the city. Proximity to the Syrian Desert to the west exposes Kirkuk to frequent dust storms, while the absence of major water bodies nearby—apart from seasonal streams—limits natural air cleansing. The city's location in a hot desert climate zone exacerbates pollution accumulation, with minimal rainfall failing to wash particulate matter from the atmosphere, and the surrounding arid landscape contributing road dust and soil particles that mingle with industrial and vehicular emissions, creating a persistent haze over the urban core.

Kirkuk's air quality follows a distinct seasonal pattern shaped by its hot desert climate and regional meteorology. In spring (March to May), pollution peaks dramatically as rising temperatures combine with frequent dust storms from the western deserts, exacerbated by northwesterly Shamal winds that transport fine particulate matter across the region. This period sees the highest concentrations of PM2.5 and PM10, making outdoor activities particularly hazardous, especially for sensitive groups like children, the elderly, and those with respiratory conditions. Summer (June to August) maintains elevated pollution levels due to intense heat and photochemical reactions that increase ground-level ozone, though occasional stronger winds provide temporary dispersion; residents should limit exertion during midday hours when ozone peaks. Autumn (September to November) offers gradual improvement as temperatures drop and dust storm frequency decreases, with October and November being the most favourable months for outdoor activities as cleaner air masses occasionally arrive from the north. Winter (December to February) sees reduced dust but increased emissions from heating sources and occasional temperature inversions that trap pollutants near the ground, particularly during calm, cold nights; morning hours often have the poorest air quality during this season. Throughout the year, sensitive individuals should monitor dust storm forecasts, use air purifiers indoors, and avoid outdoor exposure during peak pollution hours, with spring being the critical period requiring utmost caution.