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Barddhamān, situated in the fertile plains of West Bengal's central region, occupies a strategic position within India's South Asian landscape. Located at coordinates 23.2333°N, 87.8667°E, this urban center lies approximately 100 kilometers northwest of Kolkata along the Damodar River basin, placing it within the broader Gangetic Plain that dominates northern India's geography. The city's terrain is predominantly flat with an average elevation of just 40 meters above sea level, characteristic of the alluvial floodplains formed by the Damodar and adjacent rivers. This low-lying topography significantly influences air quality by facilitating temperature inversions that trap pollutants close to the ground, particularly during cooler months. Barddhamān functions as a crucial urban-rural interface, surrounded by extensive agricultural zones producing rice, jute, and vegetables, while simultaneously serving as an administrative and commercial hub for the surrounding agrarian communities. The city's location within West Bengal's industrial belt—proximate to the Asansol-Durgapur industrial region—exposes it to emissions from steel plants, thermal power stations, and manufacturing units, though it maintains a more moderate industrial footprint than its heavily industrialized neighbors. The Damodar River flows nearby, but its limited water volume during dry seasons offers minimal natural cleansing effect on atmospheric pollutants. Urban expansion has created a distinct gradient from the city's dense core to its peri-urban fringes, where brick kilns and small-scale industries intermix with agricultural activities, contributing to a complex pollution profile influenced by both urban and rural emission sources.

Barddhamān experiences distinct seasonal air quality patterns shaped by its tropical climate and regional meteorological conditions. During winter (December-February), cold temperatures and frequent ground-level temperature inversions trap pollutants, creating persistent haze and fog that elevate particulate concentrations; these months typically see the poorest air quality, with January often being the most challenging period. Sensitive groups should limit prolonged outdoor exposure during morning hours when inversions are strongest. Spring (March-May) brings gradually warming temperatures that improve vertical mixing, though pre-monsoon dust storms from the northwest occasionally degrade air quality temporarily. The summer monsoon (June-September) dramatically cleanses the atmosphere through heavy rainfall and strong southerly winds, making this the most favorable period for outdoor activities with consistently better air quality. Post-monsoon autumn (October-November) sees a gradual deterioration as rainfall ceases, agricultural residue burning becomes more common in surrounding farmlands, and meteorological conditions become increasingly stagnant. Wind patterns play a crucial role throughout the year—northeasterly winds during winter transport pollutants from industrial regions, while monsoon winds from the Bay of Bengal provide effective ventilation. Sensitive individuals including those with respiratory conditions, children, and the elderly should be particularly cautious during winter mornings and late autumn evenings when pollution concentrations peak, considering indoor air purification during these high-risk periods.