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Tungi, situated within the Dhaka Division of Bangladesh, occupies a strategic position in the heart of the Ganges-Brahmaputra Delta, approximately 15 kilometers northeast of central Dhaka. This urban center lies on the flat alluvial plains characteristic of the region, with minimal elevation variation that rarely exceeds 10 meters above sea level, creating a landscape prone to waterlogging and stagnant air conditions. The city is bordered by the Turag River to the west, which historically served as a vital transport route but now contributes to localized humidity and occasional industrial runoff. Tungi's location within the Greater Dhaka Metropolitan Area places it within one of South Asia's most densely populated urban corridors, where rapid urbanization has transformed former agricultural lands into mixed residential-industrial zones. The city sits at the convergence of multiple transportation arteries, including the Dhaka-Mymensingh Highway, making it a hub for vehicle emissions and particulate matter from both local traffic and regional transit. Surrounding areas feature a patchwork of peri-urban development, brick kilns—particularly concentrated in nearby Savar and Gazipur—and diminishing wetlands that once helped mitigate pollution. This geographic positioning within Bangladesh's industrial belt, combined with its low-lying topography and proximity to Dhaka's massive pollution plume, creates a perfect storm for poor air quality, as pollutants accumulate rather than disperse across the flat terrain.

Tungi's air quality follows a distinct seasonal pattern shaped by the South Asian monsoon and regional meteorological conditions. During winter (December-February), cool temperatures and frequent temperature inversions trap pollutants close to the ground, creating persistent haze and some of the year's worst air quality; January typically sees peak pollution levels when calm winds and fog combine with increased biomass burning for heating. Spring (March-May) brings gradually rising temperatures and pre-monsoon dust storms that stir up particulate matter, though occasional thunderstorms provide temporary cleansing. The summer monsoon (June-September) offers significant relief as southwest winds from the Bay of Bengal sweep across the region, bringing heavy rainfall that scrubs pollutants from the atmosphere—July and August generally have the cleanest air, ideal for outdoor activities. Autumn (October-November) marks a transitional period where retreating monsoon winds give way to calmer conditions, allowing pollution to gradually rebuild toward winter peaks. Sensitive groups—including children, elderly residents, and those with respiratory conditions—should minimize outdoor exposure during winter mornings when inversion layers are strongest and pollution concentrations highest. The post-monsoon months of October-November provide a relatively safe window for outdoor activities before winter deterioration begins, while the monsoon months offer the healthiest conditions despite high humidity.