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Zelenodolsk, nestled within Ukraine’s Dnipropetrovska Oblast, occupies a relatively flat section of the broader Dnieper Lowland. Situated at coordinates 47.5658° N, 33.6464° E, the city’s terrain is characterised by gently rolling plains typical of the region, with an elevation around 120-150 meters above sea level. The proximity to the Dnipro River, a major waterway traversing Ukraine, exerts a moderating influence on the local climate, but also presents a potential pathway for pollutant dispersion. Zelenodolsk is surrounded by agricultural land, primarily dedicated to grain and sunflower cultivation, with smaller pockets of deciduous forest. While not a major industrial hub itself, the city lies within a region historically associated with heavy industry, particularly metallurgy and mining, concentrated further north and east towards Kryvyi Rih. This regional industrial activity contributes to background pollution levels. The urban-rural gradient is fairly sharp; the city’s population of approximately 12,692 is concentrated within a defined urban core, quickly transitioning to open farmland. This proximity to agricultural practices introduces seasonal particulate matter from harvesting and field preparation. The prevailing winds, generally from the northwest, can transport pollutants from these industrial and agricultural sources directly over Zelenodolsk, impacting local air quality.

Zelenodolsk’s air quality follows a distinct seasonal pattern. Spring (March-May) often sees a rise in particulate matter due to agricultural activities – plowing, sowing, and burning of residual vegetation. Winds can be variable, sometimes trapping pollutants. Summer (June-August) generally offers the cleanest air, benefiting from higher temperatures promoting dispersion and rainfall washing away pollutants. However, prolonged heatwaves can lead to localised ozone formation. Autumn (September-November) brings a deterioration in air quality as heating systems are activated, increasing emissions from coal and wood burning, particularly in the peri-urban areas. Temperature inversions become more frequent, trapping pollutants near the ground. November is often the most polluted month. Winter (December-February) is characterised by consistently poor air quality due to heavy reliance on solid fuel for heating, combined with stable atmospheric conditions and frequent temperature inversions. Fog, common during winter months, exacerbates particulate matter concentrations. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during autumn and winter. Spring can also pose risks due to pollen and agricultural dust. Monitoring wind direction is crucial; periods of calm or winds from the industrial north/east should be avoided.