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Cuttack, situated in eastern India's Odisha state, occupies a strategic position at the confluence of the Mahanadi River and its tributary the Kathajodi, creating a unique urban geography that profoundly influences its air quality patterns. Built on a floodplain at approximately 36 meters above sea level, the city's low-lying terrain and dense urban fabric create natural basins where pollutants accumulate. Cuttack serves as the former capital of Odisha and functions as the commercial and administrative hub of the region, positioned between the mineral-rich industrial belts of western Odisha and the agricultural heartlands of the Mahanadi delta. The city's urban-rural gradient is sharply defined, with densely packed residential areas transitioning abruptly to surrounding paddy fields and wetlands. This proximity to agricultural zones means seasonal burning practices directly impact urban air quality, while the city's location in the tropical wet-and-dry climate zone ensures distinct seasonal pollution patterns. The surrounding landscape of flat alluvial plains, intersected by multiple river channels, creates minimal natural ventilation, particularly during the dry winter months when temperature inversions trap pollutants close to the ground. Cuttack's position approximately 30 kilometers inland from the Bay of Bengal provides some coastal influence but lacks the consistent sea breezes that characterize truly coastal cities, resulting in prolonged periods of stagnant air during certain seasons.

Cuttack's air quality follows a dramatic seasonal rhythm dictated by its tropical wet-and-dry climate and regional pollution sources. During winter (December-February), the city experiences its worst air quality as cool, stable atmospheric conditions create persistent temperature inversions that trap pollutants from vehicles, road dust, construction activities, and the renowned silver filigree workshops. These months see minimal rainfall and frequent morning fog that combines with pollution to create hazardous smog, making outdoor activities particularly risky for children, elderly residents, and those with respiratory conditions. Spring (March-May) brings gradually rising temperatures that help disperse some pollutants, though agricultural burning in surrounding areas and increased construction dust maintain elevated pollution levels until the monsoon arrives. The summer monsoon (June-September) dramatically cleanses the air through heavy rainfall and strong southwesterly winds that sweep across the Bay of Bengal, making this the healthiest period for outdoor activities. Post-monsoon (October-November) sees a gradual deterioration as rainfall decreases and pollution sources reactivate, though conditions remain better than winter. Sensitive groups should avoid prolonged outdoor exposure during morning hours in winter and spring, when pollution concentrations peak, and consider indoor air purifiers during the hazardous December-March period.