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Cordenons, nestled in the Friuli Venezia Giulia region of northeastern Italy, occupies a geographically significant position within the broader landscape. Located approximately 15 kilometers northwest of Udine, the regional capital, it sits within the Pianura Friulana, a fertile plain carved by the Meduna River. The city’s coordinates (45.9833, 12.7000) place it at an elevation of roughly 115 meters above sea level, contributing to a relatively mild climate and facilitating air movement. The surrounding terrain is predominantly agricultural, characterized by vineyards, orchards, and fields of maize and other crops – a typical feature of the Friulian countryside. To the north, the Prealpi Carniche foothills rise gradually, influencing local weather patterns and occasionally trapping pollutants under stable atmospheric conditions. The Meduna River, flowing eastward, provides a natural drainage pathway, but can also contribute to localized humidity and fog formation, impacting air quality. While Cordenons itself is a relatively small urban center, it benefits from its proximity to the industrial belt around Udine, which introduces a complex interplay of urban and rural influences. The urban–rural gradient is relatively smooth, with agricultural land seamlessly transitioning to residential and light industrial areas within the city limits. This blend means that agricultural practices, such as fertilizer application and seasonal burning (though increasingly regulated), can contribute to localized air pollution episodes, alongside emissions from nearby transportation and industrial sources. The region's generally northerly exposure also means it is susceptible to air masses originating from the Alps, which can carry pollutants from other parts of Europe.

Cordenons experiences a distinct seasonal cycle that significantly impacts its air quality. Spring (March-May) often sees a gradual improvement as temperatures rise and wind speeds increase, dispersing accumulated winter pollutants. However, agricultural activities intensify during this period, with fertilizer application and occasional field burning potentially contributing to localized spikes in ammonia and particulate matter. Summer (June-August) typically brings the best air quality, characterized by warm, dry conditions and frequent breezes that effectively ventilate the region. However, prolonged heatwaves can lead to stagnant air and ozone formation, particularly during sunny afternoons. Autumn (September-November) presents a more complex picture. While wind patterns remain generally favorable, temperature inversions are more common, especially in October and November, trapping pollutants near the ground, particularly in the mornings. This can lead to periods of reduced visibility and elevated particulate matter. Winter (December-February) is often the most challenging season. Cold, stable air masses frequently settle over the Pianura Friulana, leading to temperature inversions and reduced wind speeds. This traps pollutants, including those from residential heating (often wood-burning stoves), creating conditions conducive to poor air quality. Fog, common during these months, further exacerbates the problem by limiting dispersion. Sensitive groups, such as children, the elderly, and individuals with respiratory conditions, should limit outdoor exertion during periods of stagnant air or fog, particularly in the mornings. During the autumn and winter months, checking local weather forecasts for inversion warnings is advisable.