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Bayramaly, nestled within the Mary Region of Turkmenistan, occupies a geographically significant position on the Karakum Desert’s fringe, approximately 37.6° N, 62.2° E. The city’s elevation, around 220 meters (720 feet) above sea level, contributes to a relatively dry climate and influences atmospheric stability. Surrounded predominantly by the vast, arid expanse of the Karakum Desert, Bayramaly experiences limited natural moisture and sparse vegetation, impacting regional air circulation patterns. The landscape is characterized by sand dunes, gravel plains, and occasional rocky outcrops, offering minimal topographical complexity that could disrupt airflow. The urban character is that of a regional hub, serving agricultural communities and supporting light industry, primarily related to cotton processing and food production. This agricultural activity, coupled with the city’s role as a transportation node, introduces localized pollution sources. The urban–rural gradient transitions rapidly from the built environment to the desert, creating a distinct boundary. While no major rivers flow directly through Bayramaly, groundwater resources are utilized for irrigation, potentially impacting local air quality through dust suppression practices or, conversely, through the release of agricultural chemicals. The city’s location, far from major industrial belts, mitigates some pollution risks, but the prevailing winds from the Karakum Desert can carry dust and particulate matter, significantly impacting air quality, especially during periods of high wind. The surrounding terrain’s flatness exacerbates this issue, limiting dispersion of pollutants.

Bayramaly’s air quality follows a distinct seasonal pattern dictated by its arid climate and meteorological conditions. Spring (March-May) often brings increased dust storms originating from the Karakum Desert, driven by strengthening winds and temperature fluctuations. These events significantly degrade air quality, impacting visibility and respiratory health. Summer (June-August) is typically the hottest period, characterized by intense solar radiation and stagnant air masses, which can trap pollutants released from local sources like agricultural activities and vehicle emissions. Temperature inversions, common during calm summer nights, further exacerbate this issue, preventing vertical mixing and concentrating pollutants near the ground. Autumn (September-November) generally sees a gradual improvement in air quality as wind patterns shift and temperatures decrease, dispersing pollutants more effectively. However, agricultural burning practices, a common method of crop residue disposal, can introduce significant particulate matter and gaseous pollutants during this period. Winter (December-February) is often the most favorable season for air quality, with cooler temperatures and more frequent wind events that help to dilute and remove pollutants. However, periods of cold, calm weather can lead to localized fog formation, trapping pollutants and reducing visibility. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during spring and summer months, limiting outdoor activity during peak dust storm or heatwave periods. Maintaining indoor air quality through proper ventilation and air filtration is also recommended throughout the year.