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Petrovske, nestled within the Luhanska Oblast of eastern Ukraine, occupies a geographically significant position within the Donets Basin, a region historically defined by its coal mining and heavy industry. Located at approximately 48.28° N, 38.88° E, the city sits on a relatively flat terrain, characteristic of the broader steppe landscape that dominates this part of Ukraine. The elevation is modest, around 180 meters above sea level, contributing to a tendency for pollutants to accumulate, particularly during periods of atmospheric stability. Petrovske’s proximity to the Siverskyi Donets River, though not directly adjacent, influences regional weather patterns and can impact the dispersion of airborne contaminants. The surrounding landscape is a mix of agricultural fields – predominantly wheat and sunflower cultivation – and remnants of industrial zones, a legacy of the region’s past economic focus. This agricultural activity, while vital, can contribute to seasonal particulate matter from soil erosion and fertilizer application. The urban–rural gradient around Petrovske is gradual, with smaller settlements and agricultural land extending outwards. The city’s location within the Donets Basin places it within a historically industrialized belt, meaning that legacy pollution from past mining and manufacturing activities, even if reduced, can still influence the local air quality. The relatively flat topography and prevailing wind patterns often lead to a localized trapping of pollutants, especially during cooler months when temperature inversions are more frequent.

Petrovske’s air quality experiences a distinct seasonal cycle heavily influenced by meteorological conditions. Winter (December-February) typically presents the most challenging period. Cold temperatures lead to increased residential heating reliant on coal and wood, directly contributing to particulate matter and carbon monoxide emissions. Furthermore, frequent temperature inversions trap pollutants close to the ground, exacerbating the problem. Fog, common during these months, further restricts dispersion. Spring (March-May) brings a gradual improvement as temperatures rise and heating demand decreases, but agricultural activities, including fertilizer application and tilling, introduce new sources of particulate matter. Summer (June-August) generally offers the best air quality, with warmer temperatures promoting atmospheric mixing and stronger winds dispersing pollutants. However, occasional heatwaves can lead to stagnant air conditions. Autumn (September-November) sees a return to poorer air quality as temperatures cool and agricultural burning practices, though regulated, can still contribute to localized pollution events. The interplay of wind patterns, temperature fluctuations, and agricultural practices dictates the overall air quality profile. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during winter months and be mindful of potential agricultural impacts in spring and autumn. Outdoor activities are generally more favourable during the summer months, but vigilance regarding heatwaves is advised. Periods of prolonged rainfall can help to cleanse the atmosphere, but their impact is often temporary.