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Adilcevaz, nestled in the Bitlis Province of eastern Turkey, occupies a geographically significant position on the western shore of Lake Van, Turkey’s largest lake. The city sits at an elevation of approximately 1,640 meters (5,380 feet) above sea level, contributing to a cool climate and influencing air quality dynamics. The surrounding terrain is characterised by rugged mountains and high plateaus, typical of the Eastern Anatolia Region. This mountainous landscape creates natural barriers to air circulation, potentially trapping pollutants during periods of calm weather. Adilcevaz is primarily an agricultural centre, with farming activities dominating the surrounding rural areas. While not heavily industrialised, local heating during the cold winters, relying on coal and wood, contributes to particulate matter pollution. The urban-rural gradient is relatively sharp, transitioning quickly from the town centre to agricultural lands and then to mountainous terrain. Lake Van itself exerts a moderating influence on local temperatures, but can also contribute to humidity and fog formation, which can exacerbate pollution episodes by creating stable atmospheric conditions. The city’s location within a valley further limits air dispersion, making it susceptible to pollutant build-up. Understanding these geographical factors is crucial for assessing and mitigating air quality challenges in Adilcevaz.

Adilcevaz experiences a continental climate with stark seasonal contrasts, profoundly impacting air quality. Winters (November to March) are long, cold, and snowy, marked by increased reliance on solid fuel heating, leading to elevated particulate matter concentrations. Temperature inversions are common during these months, trapping pollutants near the ground. January and February typically see the poorest air quality. Spring (April-May) brings a gradual improvement as temperatures rise and heating demand decreases, though dust from thawing snow and agricultural activities can temporarily worsen conditions. Summers (June-August) are relatively dry and warm, with generally good air quality due to increased atmospheric mixing and reduced heating. However, occasional dry spells can lead to dust storms. Autumn (September-October) sees a return to cooler temperatures and increased heating, with a corresponding decline in air quality. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during winter months and periods of stagnant air. Monitoring wind patterns is crucial; winds from the south can bring cleaner air, while northerly winds may carry pollutants from surrounding areas. Fog, frequent in the autumn and winter, can trap pollutants and reduce visibility, necessitating caution.