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Srikakulam, situated in the northeastern corner of Andhra Pradesh along India's southeastern coast, occupies a distinctive position where the Eastern Ghats meet the Bay of Bengal. The city lies at a modest elevation of approximately 20 meters above sea level, nestled within a coastal plain that gradually rises inland toward the rugged hills of the Eastern Ghats to the west. This terrain creates a natural funnel effect, where pollutants from both urban and rural sources can accumulate rather than disperse efficiently. Srikakulam's proximity to the Bay of Bengal—just 15 kilometers east—typically provides moderating sea breezes, but during certain seasons, these winds stall, trapping emissions from local sources. The city serves as the administrative hub for a predominantly agricultural district, surrounded by extensive paddy and sugarcane fields that contribute to seasonal burning. An urban-rural gradient is evident, with the compact city center giving way to peri-urban zones where brick kilns operate, and further out to rural farmlands. This blend of coastal influence, agricultural hinterland, and modest urban development creates a complex air quality dynamic where marine air can temporarily cleanse pollutants, but topography and seasonal practices often override this benefit.

Srikakulam's air quality follows a pronounced seasonal rhythm shaped by its tropical wet-and-dry climate and local emission patterns. During the winter months from December to March, pollution peaks dramatically due to a combination of meteorological stagnation and agricultural activities. Cooler temperatures, frequent temperature inversions, and light winds trap pollutants close to the ground, while widespread post-harvest burning of paddy and sugarcane residues fills the air with smoke. This period sees persistent haze and fog, making outdoor activities particularly hazardous, especially for sensitive groups like children, the elderly, and those with respiratory conditions. The summer months from April to June bring extreme heat that can elevate ground-level ozone, though stronger sea breezes and occasional pre-monsoon showers provide some dispersion relief. The southwest monsoon from July to September dramatically improves air quality as heavy rains wash pollutants from the atmosphere and winds sweep inland from the Bay of Bengal. October and November offer a transitional period with moderate pollution levels before winter deterioration begins. For health protection, sensitive individuals should minimize outdoor exposure during peak pollution months and schedule activities for early mornings when pollution is typically lower.