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Kaniv, nestled within the Cherkaska Oblast of central Ukraine, occupies a strategically significant location at the confluence of the Dnipro and Horyn rivers. Its coordinates (49.7500, 31.4667) place it within a gently undulating terrain, characterized by fertile plains and low hills, typical of the Dnieper Upland. The city’s elevation, averaging around 115 meters above sea level, contributes to localized air circulation patterns. The Dnipro River, a major artery of Ukraine, exerts a moderating influence on the local climate, though its impact on air quality is complex, sometimes dispersing pollutants and at other times trapping them under stable atmospheric conditions. Surrounding Kaniv is a mosaic of agricultural land – predominantly grain and sunflower fields – and smaller deciduous forests. This agricultural zone, while vital to the regional economy, can contribute to seasonal particulate matter pollution, particularly during planting and harvesting periods. To the east, the landscape gradually transitions into more expansive steppe terrain. Historically, Kaniv has served as a crucial transportation hub, and while industrial activity is not as extensive as in larger Ukrainian cities, the presence of smaller processing plants and transport infrastructure contributes to localized emissions. The urban–rural gradient around Kaniv is relatively smooth, with smaller villages and agricultural holdings blending seamlessly into the city’s periphery, influencing the spread of pollutants and the overall air quality profile. The city’s position within the broader Dnieper River basin means it is susceptible to regional pollution events originating from upstream industrial centers.

Kaniv’s air quality experiences a distinct seasonal cycle heavily influenced by meteorological conditions. Spring (March-May) often brings a noticeable increase in particulate matter, linked to agricultural activities like plowing and fertilizer application, combined with increased wind speeds that can stir up dust from exposed fields. The warming temperatures also encourage biomass burning for agricultural waste management, further exacerbating the issue. Summer (June-August) generally sees improved air quality due to more frequent rainfall and stronger winds that disperse pollutants. However, periods of prolonged heat and stagnant air can lead to localized ozone formation. Autumn (September-November) presents a mixed picture. While wind patterns tend to be more favorable for dispersion, the harvest season and the burning of crop residues contribute to elevated particulate levels. Fog, common during autumn mornings, traps pollutants close to the ground, creating periods of poor air quality. Winter (December-February) is often the most challenging season. Cold temperatures and frequent temperature inversions – where a layer of warm air sits above cooler air – prevent vertical mixing, trapping pollutants near the surface. Residential heating, often reliant on coal or wood, adds to the pollution burden. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor exertion during periods of fog and temperature inversions, particularly in the early morning hours. During the harvest months, minimizing exposure to agricultural areas is advisable. Increased ventilation in homes during winter, alongside efficient heating systems, can help mitigate indoor air pollution.