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Nový Bor, nestled within the Liberecký Kraj region of the Czech Republic, occupies a geographically significant position within the Lusatian Mountains foothills. Located at approximately 50.7553° N, 14.5536° E, the town’s elevation averages around 270 meters above sea level, contributing to localized microclimates and influencing air circulation patterns. The surrounding landscape is characterized by a blend of forested hills and agricultural land, a typical feature of the Bohemian region. To the west, the Jizera River meanders through the valley, providing a natural drainage route and a slight moderating effect on temperatures. Historically, Nový Bor’s development was intrinsically linked to the local glass industry, a legacy that continues to shape its urban character. The town exhibits a gradual urban-rural gradient, transitioning from a compact core of historical buildings to more dispersed residential areas and then into the surrounding agricultural fields and woodlands. This proximity to both industrial activity and agricultural zones presents a complex interplay regarding air quality. The town’s location within a relatively sheltered valley can, at times, exacerbate pollution episodes, particularly when coupled with unfavorable meteorological conditions. The broader regional context places Nový Bor within a zone experiencing increasing pressure from industrial activity in neighboring areas, impacting background air quality. The terrain, with its rolling hills, can also impede the dispersion of pollutants, leading to localized concentrations, especially during periods of stagnant air.

Nový Bor’s air quality experiences a distinct seasonal cycle heavily influenced by meteorological factors. Winter months (December-February) often present the greatest challenges. Cold temperatures and frequent temperature inversions trap pollutants near the ground, leading to increased concentrations of particulate matter and other emissions. The lack of strong winds during this period further inhibits dispersion. Fog, a common occurrence in winter, exacerbates the situation by reducing visibility and further concentrating pollutants. Spring (March-May) brings a gradual improvement as temperatures rise and wind speeds increase, aiding in pollutant dispersal. However, agricultural activities, such as the spreading of fertilizers, can contribute to ammonia emissions. Summer (June-August) generally offers the best air quality, with warm temperatures, frequent rainfall, and consistent winds. However, occasional heatwaves can lead to stagnant air conditions and elevated ozone levels. Autumn (September-November) sees a transition period, with decreasing temperatures and increasing humidity. Biomass burning, a traditional practice in the region, can contribute to particulate matter pollution during this time. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during winter months and be mindful of potential agricultural emissions in spring. Outdoor activities are generally favored during the summer months, but vigilance is still advised during heatwaves. The interplay of temperature, wind patterns, and local emissions dictates the air quality narrative throughout the year, demanding adaptive strategies for public health.