Sukhoy Log Air Quality Index (AQI)

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Sukhoy Log, nestled within Sverdlovskaya Oblast’ in Russia, occupies a unique geographic position on the eastern slope of the Ural Mountains, at coordinates 56.9167° N, 62.0167° E. The city’s terrain is characterised by rolling hills and forested areas, typical of the sub-continental climate zone. Situated approximately 250 meters above sea level, Sukhoy Log benefits from a relatively high elevation, which can influence air dispersion, but also contribute to temperature inversions during stable atmospheric conditions. The city is located near the Lozva River, a tributary of the Tavda, and the surrounding landscape is dominated by taiga forests – vast coniferous woodlands. Sukhoy Log is not a major industrial hub, but its proximity to larger industrial centres within the Sverdlovskaya Oblast’, such as Ekaterinburg, means it can experience pollutant transport. The urban-rural gradient is quite sharp; the city itself is relatively compact, quickly transitioning to sparsely populated forested areas. Agricultural activity is present, primarily consisting of small-scale farming and forestry, contributing to seasonal biomass burning. This combination of factors – topography, proximity to industry, and local land use – significantly shapes the city’s air quality profile, making it susceptible to both local emissions and regional pollutant influx.

Sukhoy Log experiences a pronounced seasonal cycle impacting air quality. Winter (November to March) typically sees the poorest air quality. Low temperatures create stable atmospheric conditions, trapping pollutants from residential heating – primarily coal and wood burning – near the ground. Snow cover reflects sunlight, exacerbating temperature inversions and reducing dispersion. February and March are often the most challenging months. Spring (April-May) brings a temporary improvement as temperatures rise and precipitation washes away accumulated pollutants, though biomass burning from agricultural practices can briefly elevate particulate matter. Summer (June-August) generally offers the cleanest air, with higher temperatures promoting better dispersion and increased vegetation absorbing pollutants. However, prolonged periods of high pressure can still lead to stagnation. Autumn (September-October) sees a gradual decline in air quality as heating demand increases and atmospheric stability returns. Fog is common during autumn mornings, trapping pollutants. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during winter and autumn months. Monitoring wind direction is crucial, as pollutants from regional sources can significantly impact local conditions.