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As Sukhnah, nestled within the Ḩimş Governorate of Syria, occupies a geographically significant, yet challenging, position. Located at coordinates 34.8853°N, 38.8711°E, the city sits within the Syrian Desert, a vast expanse of arid steppe land. The terrain is predominantly flat to gently undulating, rising slightly towards the east. Its elevation, around 430 meters above sea level, contributes to temperature variations and potential for temperature inversions. As Sukhnah’s location is crucial as it lies along a historically important trade route connecting Damascus with the Euphrates River valley and beyond. The surrounding landscape is characterized by sparse vegetation and rocky outcrops. While not directly adjacent to a major body of water, the proximity to the Euphrates River, approximately 60km to the northeast, influences regional climate patterns, though its direct impact on local air quality is limited. The city’s recent history, marked by conflict, has disrupted traditional economic activities, including agriculture in the limited arable land surrounding the city. The urban-rural gradient is stark, with a rapid transition from the small urban centre to the open desert. This isolation and the lack of robust industrial regulation, coupled with potential dust storms from the surrounding desert, significantly affect air quality. The city’s position within a conflict zone also introduces unique pollution sources related to damage and destruction.

As Sukhnah experiences a pronounced seasonal air quality pattern dictated by its desert climate. Spring (March-May) brings a temporary improvement as sporadic rainfall suppresses dust, but winds can still carry particulate matter from the surrounding desert. Summer (June-August) is typically the worst period. Intense heat creates stable atmospheric conditions, trapping pollutants near the ground, and exacerbating dust storms. The lack of rainfall means pollutants accumulate. Autumn (September-November) sees a gradual improvement as temperatures cool and winds shift, but dust remains a concern. Winter (December-February) offers the cleanest air, with occasional rainfall effectively washing away pollutants. However, increased use of solid fuels for heating can lead to localised spikes in indoor and outdoor pollution. Temperature inversions, common during the cooler months, can trap pollutants at ground level. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the summer months and periods of high wind. Monitoring wind direction is crucial; winds from the west and southwest are likely to carry dust from disturbed areas. Fog is infrequent, but when it occurs, it can exacerbate particulate matter concentrations.