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Kocaköy, nestled within the Diyarbakır province of Turkey, occupies a geographically significant position in southeastern Anatolia. Located at approximately 38.2897° latitude and 40.5014° longitude, the town sits at an elevation of around 1,250 meters (4,100 feet) above sea level, contributing to a cooler climate than the surrounding lowlands. The landscape surrounding Kocaköy is characterized by a dramatic transition from the rugged Taurus Mountains to the north and east, sloping down towards the more fertile plains of the Tigris River basin to the west. This terrain creates a rain shadow effect, limiting precipitation and influencing local weather patterns. Kocaköy’s urban character is that of a small, primarily agricultural town, with a gradual urban–rural gradient extending outwards into the surrounding farmlands and pastures. The dominant land use is agricultural, with significant cultivation of wheat, barley, and various fruits. While Kocaköy itself lacks major industrial zones, it benefits from its proximity to Diyarbakır, a regional industrial hub, and the agricultural belt stretching across southeastern Turkey. This proximity can lead to occasional transport-related pollution drift. The absence of significant bodies of water within immediate proximity means humidity levels are generally low, which can exacerbate particulate matter dispersion under certain meteorological conditions. The mountainous terrain can also trap pollutants, particularly during periods of low wind speed, impacting local air quality.

Kocaköy’s air quality experiences a distinct seasonal cycle heavily influenced by its climate and surrounding geography. Summers (June-August) are typically hot and dry, with minimal rainfall and frequent periods of calm winds. This combination often leads to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing the vertical dispersion of pollutants. Agricultural activities, including harvesting and burning of crop residues, can contribute to particulate matter pollution during this period. Autumn (September-November) brings a slight increase in rainfall and more variable wind patterns, which generally improves air quality as pollutants are flushed out. However, agricultural burning can still be a factor. Winters (December-February) are cold, with occasional snowfall. While snowfall can temporarily cleanse the air, periods of prolonged calm and fog can trap pollutants, leading to localized air quality concerns. Spring (March-May) sees a gradual increase in temperatures and rainfall, further improving air quality. Sensitive groups, such as children, the elderly, and individuals with respiratory conditions, should be particularly cautious during the summer months and periods of winter fog, limiting outdoor exertion. The dry conditions and potential for temperature inversions necessitate awareness of potential particulate matter accumulation. Avoiding outdoor activities during peak agricultural burning periods is also advisable. The variable winds in autumn can bring pollutants from surrounding agricultural areas, so monitoring local conditions is recommended.