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Akdepe, nestled within the Daşoguz Province of Turkmenistan, occupies a geographically significant position on the edge of the Karakum Desert. Located at approximately 42.05° N, 59.40° E, the city’s terrain is predominantly flat, characteristic of the vast Central Asian plains. Its elevation is relatively low, contributing to potential air stagnation under certain meteorological conditions. The surrounding landscape is dominated by arid desert scrubland, punctuated by occasional oases and agricultural fields, primarily focused on cotton cultivation – a significant regional industry. This proximity to intensive agricultural practices introduces potential sources of particulate matter and volatile organic compounds (VOCs) into the local atmosphere, particularly during planting and harvesting seasons. While Akdepe lacks immediate access to large bodies of water, the nearby Amu Darya River, though increasingly strained by water resource management, influences regional humidity and can impact atmospheric stability. The urban–rural gradient transitions rapidly from the small city center to the expansive desert, meaning that any industrial activity, though currently limited in Akdepe itself, can have a disproportionate impact on air quality due to the lack of dilution from extensive urban areas. The city’s location within a broad, relatively shallow basin further exacerbates this, potentially trapping pollutants and hindering dispersion. The regional climate, characterized by hot summers and cold winters, also plays a crucial role in shaping local air quality patterns, influencing temperature inversions and wind patterns.

Akdepe’s air quality experiences a distinct seasonal cycle heavily influenced by its arid climate and agricultural practices. Summers (June-August) are typically the most challenging period. Intense heat leads to atmospheric stability, frequently resulting in temperature inversions where a layer of warm air traps cooler air and pollutants near the ground. Combined with minimal rainfall and infrequent wind, this creates conditions ripe for pollutant accumulation. Agricultural activities, including cotton harvesting and pesticide application, contribute significantly to particulate matter and VOC levels during these months. Spring (March-May) brings a slight improvement as temperatures moderate and winds increase, aiding in pollutant dispersal. However, dust storms originating from the Karakum Desert remain a concern, particularly during windy periods. Autumn (September-November) sees a gradual decline in temperatures and a further increase in wind speeds, generally leading to better air quality. The harvest season continues to be a factor, though less intense than in summer. Winters (December-February) are characterized by cold temperatures and occasional fog, which can trap pollutants and reduce visibility. While overall emissions may be lower due to reduced agricultural activity, the lack of wind and the presence of fog can lead to localized air quality issues. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the summer months and be mindful of dust storm warnings in the spring. Maintaining indoor air quality through ventilation and air purification can be beneficial throughout the year, particularly during periods of elevated pollution.