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Tambaram occupies a strategic position in the northern part of Tamil Nadu's Kanchipuram district, situated approximately 25 kilometres southwest of Chennai's urban core. This satellite city lies on the flat coastal plains of the Coromandel Coast, with an elevation averaging just 30 metres above sea level, creating minimal natural ventilation for pollutant dispersion. The urban character blends rapid residential expansion with commercial corridors along the Grand Southern Trunk Road, which bisects the city and serves as a major transport artery connecting Chennai to southern Tamil Nadu. Tambaram's geography places it within the Palar River basin, though the riverbed often runs dry, contributing to dust issues during drought periods. The city's location between Chennai's industrial belt to the northeast and agricultural zones to the southwest creates a distinct urban-rural gradient where biomass burning from peripheral farming areas frequently affects air quality. Proximity to the Bay of Bengal (about 20 kilometres east) provides some moderating influence through sea breezes, but this is often insufficient to clear pollutants trapped by the region's low-lying topography. The presence of the Indian Air Force base adds localized emissions, while the railway junction and ongoing construction projects further complicate Tambaram's airshed dynamics within this densely populated corridor of South Asia.

Tambaram's tropical wet-and-dry climate creates distinct seasonal air quality patterns that residents must navigate carefully. During the northeast monsoon season (October-December), increased humidity and occasional cyclonic systems from the Bay of Bengal initially help disperse pollutants, but by November and December, calm winds and temperature inversions trap emissions, creating the year's first pollution peak. This worsens through January and February when cool, stable atmospheric conditions combine with minimal rainfall, allowing vehicle emissions from the Grand Southern Trunk Road, railway operations, and construction dust to accumulate near ground level. Sensitive groups should limit outdoor activities during these winter months, particularly morning hours when fog and inversions are most pronounced. The pre-monsoon period (March-May) brings extreme heat that accelerates photochemical reactions, though stronger sea breezes provide some relief. The southwest monsoon (June-September) offers the cleanest air as heavy rains from the Arabian Sea branch wash pollutants from the atmosphere, making this the optimal time for outdoor activities. However, occasional drought years can reduce this cleansing effect. Throughout the year, those with respiratory conditions should monitor local air quality reports and use protective masks during peak pollution months when biomass burning from agricultural areas adds to the urban emission mix.