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Zbarazh, nestled in the Ternopilska Oblast of western Ukraine, occupies a gently undulating landscape within the Volhynian-Podolian Upland. Situated at coordinates 49.6667° N, 25.7778° E, the city’s elevation contributes to localized weather patterns and influences air dispersion. The surrounding terrain is characterized by rolling hills and fertile black soil, indicative of a predominantly agricultural region. The Zbruch River flows nearby, providing a vital water source but also potentially contributing to humidity and fog formation, which can trap pollutants. Zbarazh isn’t located within a major industrial belt; however, agricultural practices – including fertilizer use and seasonal burning of crop residue – represent a significant source of particulate matter and ammonia. The urban-rural gradient is relatively sharp, with agricultural land immediately surrounding the city limits. This proximity means air quality within Zbarazh is heavily influenced by regional agricultural activities. The city’s compact size and relatively low population density (13,346) suggest localized pollution sources, such as residential heating and vehicle traffic, are more prominent than large-scale industrial emissions. The prevailing winds, generally from the west, play a crucial role in transporting pollutants in and out of the area, impacting air quality in neighboring settlements.

Zbarazh experiences a temperate continental climate, resulting in distinct seasonal air quality patterns. Spring (March-May) often sees a deterioration in air quality due to agricultural burning and dust from thawing ground, exacerbated by occasional temperature inversions trapping pollutants near the surface. Summer (June-August) generally offers the cleanest air, with prevailing winds dispersing emissions and rainfall scavenging pollutants. However, heatwaves can lead to increased ground-level ozone formation. Autumn (September-November) brings a resurgence of pollution from residential heating with coal and wood, combined with continued agricultural practices. November is often the most polluted month. Winter (December-February) is characterized by stable, cold air masses and frequent temperature inversions, trapping pollutants from heating sources. Fog is common, further reducing visibility and exacerbating respiratory issues. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit outdoor activity during periods of agricultural burning in spring and autumn, and during prolonged cold spells in winter. Monitoring wind direction is crucial; westerly winds may bring pollutants from further afield. Avoiding strenuous activity near roads during peak traffic hours is also advisable.