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Kavali is a coastal city in Andhra Pradesh's Nellore district, situated on India's southeastern Coromandel Coast at approximately 14.9169°N, 79.9939°E. This urban center lies just 15 kilometers from the Bay of Bengal, with an elevation averaging 20 meters above sea level, creating a flat coastal plain landscape that extends inland toward the Eastern Ghats foothills. The city's geography positions it within a transitional zone between the fertile coastal agricultural belt and more arid interior regions, with the Penna River flowing nearby. Kavali's urban character blends traditional market town functions with growing commercial activity, featuring a linear development pattern along major transportation corridors like National Highway 16. This highway connectivity, while economically vital, contributes significantly to air pollution through continuous vehicle exhaust and road dust resuspension. The city's proximity to the Bay of Bengal provides some natural ventilation through sea breezes, but this is often insufficient to disperse pollutants effectively due to the urban heat island effect and frequent temperature inversions. Surrounding agricultural lands, particularly rice paddies and sugarcane fields, contribute to seasonal pollution through crop residue burning, while the fishing harbor adds marine diesel emissions to the local airshed. The urban-rural gradient shows decreasing pollution levels moving away from the congested city center toward coastal villages, though agricultural burning affects even these peripheral areas during specific seasons.

Kavali's tropical wet-and-dry climate creates distinct seasonal air quality patterns throughout the year. During the winter months from December through March, pollution reaches its peak as cooler temperatures and frequent temperature inversions trap pollutants near the surface, compounded by agricultural burning in surrounding fields after harvests. These months feature the highest particulate concentrations, making outdoor activities particularly hazardous for sensitive groups like children, elderly residents, and those with respiratory conditions. The summer season from April to June brings extreme heat that accelerates photochemical reactions, potentially increasing ozone formation, though stronger sea breezes provide some dispersion of pollutants. The southwest monsoon from July to September dramatically improves air quality through heavy rainfall that washes pollutants from the atmosphere, though this season brings cyclone risks and flooding that can temporarily disrupt normal activities. Post-monsoon months from October to November see gradually deteriorating air quality as rainfall decreases and agricultural burning begins, with morning fog sometimes trapping pollutants. Sensitive residents should avoid prolonged outdoor exposure during winter mornings when pollution concentrations are highest, while the monsoon months offer the most favorable conditions for outdoor activities. During pollution peaks, vulnerable populations should remain indoors during peak traffic hours, use air purifiers if available, and monitor local air quality advisories.