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Kayapınar, situated within Diyarbakır Province in southeastern Turkey, occupies a strategic position on the Upper Mesopotamian plains at an elevation of approximately 660 meters above sea level. This urban district lies just southeast of Diyarbakır's historic center, forming part of a rapidly expanding metropolitan area characterized by dense residential development and commercial sprawl. The terrain is predominantly flat to gently rolling, with the Tigris River flowing about 10 kilometers to the east, though its moderating influence on local climate is limited due to distance and the region's arid nature. Kayapınar's location in the rain shadow of the Taurus Mountains to the north contributes to its continental semi-arid climate, with hot, dry summers and cold winters. The surrounding landscape transitions from urban fabric to agricultural zones growing wheat, barley, and pistachios, with occasional dust sources from fallow fields. Air quality here is primarily affected by local urban emissions—vehicle exhaust, residential heating, and small-scale industry—compounded by geographical factors: the basin-like topography can trap pollutants, especially during temperature inversions, while seasonal winds from the Syrian Desert to the south occasionally carry dust, adding particulate matter. The urban-rural gradient shows decreasing pollution toward the outskirts, but rapid urbanization blurs this distinction, with construction dust becoming a persistent issue. Proximity to Diyarbakır's industrial areas, though not extensive, means shared airshed challenges, particularly in winter when domestic coal burning peaks.

In Kayapınar, air quality follows a distinct seasonal rhythm shaped by its continental semi-arid climate. Winter, from December to February, brings the worst pollution due to temperature inversions that trap emissions from coal and wood heating in residential areas, compounded by low wind speeds and frequent fog; sensitive groups like asthmatics should limit outdoor activity during these cold, stagnant periods. Spring, March through May, sees gradual improvement as temperatures rise and winds increase, dispersing pollutants, though late spring dust storms from southern deserts can temporarily spike particulate levels, making April a month to monitor for outdoor plans. Summer, June to August, offers relatively better air quality despite high temperatures, as strong daytime breezes and convective mixing dilute pollutants, but ozone may rise on hot, sunny days, posing risks for children and the elderly during afternoon exertion. Autumn, September to November, transitions with cooling temperatures and reduced mixing, leading to occasional pollution buildup, especially in October when heating season begins and agricultural burning may occur; this period requires caution for those with respiratory conditions. Overall, late spring and early summer are most favourable for outdoor activities, while winter months demand heightened awareness and indoor air quality management for vulnerable populations.