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Tatarbunary, nestled in the Odeska Oblast of Ukraine at coordinates 45.8403, 29.6125, occupies a unique geographical position within the Northwest Black Sea coastal plain. The city’s name, meaning ‘Tatar Fortress’, hints at its historical role as a defensive point in a region long contested. The terrain is largely flat, characteristic of the Black Sea lowlands, with a gentle slope towards the Dniester Estuary and Black Sea, approximately 20km distant. This proximity to the sea exerts a moderating influence on the climate, but also facilitates the transport of pollutants. Tatarbunary is surrounded by intensely farmed agricultural land, primarily dedicated to grain and sunflower cultivation. This agricultural dominance introduces potential sources of particulate matter from soil erosion, harvesting activities, and fertilizer application. While not a major industrial hub, smaller-scale processing of agricultural products contributes to localised emissions. The urban-rural gradient is relatively sharp; the city itself is compact, with a population of 10,836, quickly transitioning to open farmland. The prevailing winds, generally from the northwest, can carry pollutants from inland agricultural areas towards the city, while easterly winds can bring maritime influences. The flat topography limits natural dispersion of pollutants, potentially leading to localised build-up during calm conditions.

Tatarbunary experiences a temperate continental climate, significantly impacting its air quality throughout the year. Spring (March-May) sees a rise in particulate matter as agricultural activities intensify – ploughing, sowing, and the burning of stubble fields contribute to increased PM10 and PM2.5 levels. Westerly winds are common, potentially transporting dust from inland. Summer (June-August) generally offers the cleanest air, with prevailing winds dispersing pollutants and rainfall acting as a natural scrubber. However, high temperatures can promote ground-level ozone formation. Autumn (September-November) brings a return of agricultural burning, coupled with the onset of temperature inversions, trapping pollutants near the ground. This period often sees the poorest air quality. Winter (December-February) is characterised by stable atmospheric conditions and increased reliance on solid fuel heating, leading to elevated levels of smoke and particulate matter. Fog is also common, exacerbating pollution. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during autumn and winter. Springtime exposure should be moderated due to agricultural dust. Monitoring wind direction and avoiding activity during calm, foggy conditions is advisable year-round.