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Prymorskyi, nestled on the southern coast of Crimea’s eastern shore, occupies a geographically complex position within the Autonomous Republic of Crimea, Ukraine. Its coordinates (45.1167, 35.4806) place it within a gently sloping coastal plain, transitioning rapidly to the Crimean Mountains to the north. The city’s immediate surroundings are characterized by a mix of agricultural land – primarily vineyards and orchards – and scrubland, typical of the Black Sea coastal steppe. The Sea of Azov lies to the east, influencing local weather patterns and providing a potential pathway for pollutant dispersal. Prymorskyi’s relatively low elevation, averaging around 30 meters above sea level, contributes to a tendency for temperature inversions, particularly during the cooler months, trapping pollutants closer to the ground. While the city itself is small, with a population of approximately 12,560, its proximity to larger regional centers and potential transport corridors raises concerns about transboundary pollution. The urban–rural gradient is gradual, with agricultural activities and smaller settlements blending into the city’s periphery. The surrounding landscape, dominated by the Black Sea and the looming presence of the Crimean Mountains, significantly impacts local wind patterns and the overall atmospheric circulation, influencing the dispersion of any locally generated air pollutants. The absence of major heavy industries within Prymorskyi itself mitigates some pollution risks, but agricultural practices and potential traffic emissions remain key factors.

Prymorskyi’s air quality experiences a distinct seasonal cycle heavily influenced by its Black Sea climate. Winters (December-February) are often characterized by periods of calm winds and temperature inversions, leading to pollutant accumulation. Fog, common during these months, further exacerbates the issue by trapping particulate matter and reducing visibility. Agricultural burning, a traditional practice in the region, can also contribute to elevated levels of smoke and particulate pollution during this period. Spring (March-May) brings a gradual improvement as winds increase and temperature inversions become less frequent, dispersing pollutants more effectively. However, dust storms originating from the steppe regions can occasionally impact air quality. Summer (June-August) generally sees the best air quality, with consistent sea breezes providing excellent ventilation. The warm temperatures and increased sunlight promote photochemical reactions, which can lead to ozone formation, though this is typically less of a concern than particulate pollution. Autumn (September-November) marks a transition period, with decreasing wind speeds and the return of temperature inversions, mirroring the winter pattern. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the winter and autumn months, limiting outdoor activity during periods of fog or stagnant air. Spring brings a risk of dust exposure, requiring protective measures. Overall, the months of June and July typically offer the most favorable conditions for outdoor activities, while November and January should be approached with greater awareness of potential air quality challenges.