Al Qaryatayn Air Quality Index (AQI)

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Al Qaryatayn, nestled within the Ḩimş Governorate of Syria, occupies a strategically significant, yet challenging, geographic position. Located at coordinates 34.2296, 37.2407, the city sits in a semi-arid region of the Syrian Desert, approximately 100km northeast of Homs and 210km north of Damascus. The terrain is characterised by undulating plains and rocky outcrops, with an elevation around 500 meters above sea level. This elevation, while moderating temperatures somewhat, doesn’t prevent the frequent occurrence of dust storms sweeping across the open landscape. The city’s location is not near major bodies of water, contributing to the aridity. Historically, Al Qaryatayn served as an important oasis and trading post along ancient routes, benefitting from limited groundwater resources. However, the surrounding landscape is predominantly agricultural, with olive groves and grain fields extending outwards, and increasingly impacted by conflict-related land degradation. The urban-rural gradient is relatively sharp, transitioning quickly to sparsely populated desert areas. Air quality is intrinsically linked to this geography; the lack of natural barriers allows pollutants to disperse slowly, and the dry conditions exacerbate dust suspension. The recent conflict has also disrupted waste management and industrial controls, further impacting local air quality. The city’s position within a region experiencing prolonged instability adds a complex layer to environmental challenges.

Al Qaryatayn experiences a Mediterranean-influenced semi-arid climate, with distinct wet and dry seasons heavily impacting air quality. Winter (December-February) brings limited rainfall, offering temporary relief from dust, but temperature inversions are common, trapping pollutants near the ground, particularly from domestic heating using wood and other biomass. Spring (March-May) sees increasing agricultural activity, potentially releasing ammonia and particulate matter from fertilizer use and land preparation. However, winds begin to pick up, aiding some dispersion. Summer (June-August) is intensely hot and dry, with frequent, powerful dust storms originating from the surrounding desert. These ‘shamal’ winds dramatically worsen particulate matter concentrations, posing significant respiratory risks. This is generally the worst period for air quality. Autumn (September-November) offers a transitional period, with decreasing temperatures and occasional rainfall, improving air quality. However, the burning of agricultural residue after harvest can create localised pollution spikes. Sensitive groups – children, the elderly, and those with respiratory conditions – should avoid prolonged outdoor activity during summer dust storms and winter inversions. Monitoring wind patterns and staying indoors during peak pollution events is crucial. The ongoing conflict complicates seasonal patterns, with unpredictable disruptions to infrastructure and increased localised burning.