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Kâhta, nestled within the Adıyaman Province of southeastern Turkey, occupies a dramatic and geographically complex position. Situated at approximately 37.78°N, 38.62°E, the city lies within the Taurus Mountains, a significant range defining the region's topography. Its elevation, averaging around 1,250 meters (4,100 feet) above sea level, contributes to a unique microclimate and influences air circulation patterns. The surrounding landscape is characterized by steep slopes, rugged terrain, and semi-arid conditions, typical of the Anatolian plateau. While Kâhta itself lacks immediate proximity to major bodies of water, the Euphrates River flows relatively close by, impacting regional humidity and potentially influencing localized weather systems. The urban fabric of Kâhta is a blend of traditional and modern elements, with a noticeable urban-rural gradient extending outwards into agricultural lands. The dominant land use in the surrounding areas is agriculture, primarily focused on dry farming techniques cultivating crops like wheat, barley, and pulses. This agricultural activity, coupled with occasional burning of crop residues, can contribute to localized air pollution episodes. Further afield, the broader region experiences influences from the industrial belt centered around Gaziantep, though Kâhta’s distance mitigates direct impacts. The mountainous terrain creates a natural barrier, but also traps pollutants, particularly during periods of temperature inversion, exacerbating air quality challenges. The city’s location within a rain shadow zone further limits precipitation, impacting atmospheric cleansing processes.

Kâhta’s air quality follows a distinct seasonal pattern dictated by its semi-arid climate and mountainous geography. Summers (June-August) are typically hot and dry, with minimal rainfall and frequent periods of intense sunshine. This leads to stagnant air conditions, particularly in the valleys, and a propensity for temperature inversions where cooler air becomes trapped beneath a layer of warmer air aloft. These inversions significantly impede vertical mixing, concentrating pollutants near ground level. Agricultural burning, a common practice after harvest, further compounds the problem during this period, releasing particulate matter and other emissions. Autumn (September-November) brings a slight increase in rainfall and a gradual cooling of temperatures, which can help disperse pollutants, but the risk of agricultural burning remains. Winter (December-February) is characterized by cold temperatures and occasional fog, which can trap pollutants and reduce visibility. The lack of strong winds during this season further limits dispersion. Spring (March-May) generally offers the most favorable air quality, with increasing rainfall and stronger winds helping to flush out pollutants. However, dust storms originating from the Mesopotamian plains can occasionally impact air quality during the spring months. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the summer months and periods of fog, limiting outdoor activity during peak pollution times. Maintaining indoor air quality through ventilation and air purification can also be beneficial throughout the year, especially during periods of elevated pollution.