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Bełchatów, nestled within the Łódzkie Voivodeship of Poland, occupies a geographically significant position within the Central European Plain. Located at approximately 51.37° N, 19.37° E, the city’s terrain is gently undulating, characterized by low hills and fertile plains sculpted by glacial activity during the Pleistocene epoch. The surrounding landscape is predominantly agricultural, a patchwork of fields and pastures interspersed with pockets of deciduous forest, typical of the Łódź Highlands. This proximity to intensive agricultural practices contributes to seasonal particulate matter, particularly during harvest and fertilizer application periods. Bełchatów sits on the edge of the Bełchatów Coal Basin, a crucial factor shaping its industrial character and, consequently, its air quality. The city is notably close to the Bełchatów Power Station, one of Europe's largest lignite-fired power plants, a dominant feature of the skyline and a major source of air pollutants. The urban–rural gradient is relatively sharp; the city transitions quickly into agricultural land, limiting the dispersion of pollutants. Elevation plays a minor role, with the city situated at an average altitude of around 150 meters above sea level, which doesn't significantly influence regional air flow patterns. While not directly adjacent to major rivers, the area experiences moderate rainfall, which can help to cleanse the atmosphere, though it can also contribute to fog formation under certain meteorological conditions, trapping pollutants near the ground. The regional position, within a densely populated and industrialized area of Poland, means that Bełchatów is also susceptible to transboundary pollution.

Bełchatów’s air quality experiences a distinct seasonal cycle heavily influenced by meteorological conditions and local industrial activity. Winter months (December-February) typically present the most challenging period. Cold temperatures frequently lead to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing the vertical dispersion of pollutants emitted from the Bełchatów Power Station and other sources. This results in prolonged periods of elevated particulate matter and sulfur dioxide concentrations. Fog, common during these months, exacerbates the problem by further restricting atmospheric mixing. Spring (March-May) sees a gradual improvement as temperatures rise and wind speeds increase, facilitating pollutant dispersal. However, agricultural activities, including fertilizer application and plowing, contribute to increased ammonia and particulate matter levels. Summer (June-August) generally offers the best air quality, with frequent rainfall and strong winds effectively cleansing the atmosphere. However, heatwaves can occasionally lead to stagnant air conditions. Autumn (September-November) marks a transition period, with decreasing temperatures and increasing humidity. Agricultural burning, a traditional practice in the region, can significantly degrade air quality during this time, releasing smoke and particulate matter. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during winter and autumn, limiting outdoor exposure on days with poor visibility or reported elevated pollution levels. During the warmer months, while generally better, heat advisories should still prompt hydration and reduced strenuous activity.