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Koluszki, nestled within the Łódzkie Voivodeship of Poland, occupies a geographically significant position at the intersection of historical trade routes and evolving industrial landscapes. Located approximately 30 kilometers southwest of Łódź, the region’s largest city, Koluszki’s coordinates (51.7500, 19.8000) place it within a gently undulating terrain characterized by low hills and fertile plains. The surrounding landscape is predominantly agricultural, with extensive fields of grain and rapeseed dominating the view, contributing to seasonal biomass burning that can impact air quality. The elevation is relatively modest, averaging around 180 meters above sea level, which can influence local wind patterns and the dispersion of pollutants. While Koluszki lacks direct proximity to major bodies of water, the Pilica River flows nearby, moderating temperatures to a degree and influencing humidity levels. Historically, the area served as a vital railway hub, fostering industrial development, particularly in the coal mining and brick-making sectors, legacies that continue to shape the urban fabric. The urban–rural gradient is relatively sharp; the town itself is compact, transitioning quickly to agricultural fields and scattered rural settlements. This proximity to both agricultural activity and historical industrial zones creates a complex interplay of factors affecting air quality, with emissions from both sectors contributing to localized pollution events. The town’s location within the broader Central Polish Lowland also means it’s susceptible to the transport of pollutants from more distant industrial centers.

Koluszki’s air quality experiences a distinct seasonal cycle heavily influenced by meteorological conditions and regional activities. Spring (March-May) often brings a gradual improvement as temperatures rise and winds increase, dispersing accumulated winter pollutants. However, agricultural activities, including fertilizer application and early field preparation, can introduce ammonia and particulate matter. Summer (June-August) generally sees the best air quality, with consistent winds and higher temperatures promoting good ventilation. Heatwaves, though, can lead to stagnant air and ozone formation. Autumn (September-November) marks a period of increasing concern. As temperatures cool, temperature inversions become more frequent, trapping pollutants near the ground, particularly in the mornings. Agricultural burning of crop residues, a traditional practice, significantly contributes to particulate matter pollution during this period. Winter (December-February) typically presents the most challenging air quality conditions. Cold temperatures, frequent fog, and weak winds create stable atmospheric conditions, leading to pollutant accumulation. Residential heating, primarily reliant on coal and wood, is a major source of particulate matter and carbon monoxide. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor activity during periods of fog and temperature inversions, especially in the mornings. During the autumn months, monitoring local air quality reports and avoiding prolonged exposure to smoke from agricultural burning is advisable. Prioritizing indoor air quality through ventilation and air purification can also mitigate potential health impacts.