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Kurivikod, a municipality in Tamil Nadu, India, sits at coordinates 8.3196°N, 77.1104°E, and is home to a population of approximately 31,506. The town’s geography is characterised by relatively flat coastal plains, typical of the Coromandel Coast. It’s situated inland from the Gulf of Mannar, a region known for its shallow waters and extensive coral reefs. The surrounding landscape is predominantly agricultural, with rice paddies and coconut groves dominating the rural areas immediately bordering the urban centre. This agricultural intensity contributes to seasonal biomass burning, a significant localised source of particulate matter. Kurivikod isn’t directly within a major industrial belt, but its proximity to larger towns like Ramanathapuram means it experiences some spillover effects from regional industrial activity and associated transportation. The urban-rural gradient is fairly sharp, transitioning quickly from densely populated residential areas to agricultural fields. The low elevation and coastal location mean Kurivikod is susceptible to sea breezes, which can both disperse and concentrate pollutants depending on atmospheric conditions. The lack of significant topographical features limits natural ventilation, potentially exacerbating pollution episodes. Understanding this interplay of coastal plains, agriculture, and regional industrial influence is crucial for assessing Kurivikod’s air quality challenges.

Kurivikod experiences a tropical climate, with air quality fluctuating significantly between the wet and dry seasons. The dry season, roughly from February to May, sees a peak in particulate matter due to increased dust from agricultural activities, road dust resuspension, and potential biomass burning for land preparation. High temperatures and stable atmospheric conditions during these months can lead to temperature inversions, trapping pollutants near the ground. Monsoon season, arriving in June and lasting through September, generally brings improved air quality as rainfall washes away pollutants and increases humidity, suppressing dust. However, increased cloud cover can also contribute to localised temperature inversions. October and November represent a transitional period, with decreasing rainfall and a gradual return to drier conditions, often accompanied by a slight increase in pollution. December and January offer the most favourable air quality, with cooler temperatures and moderate breezes aiding dispersion. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the peak dry season months (March-May). Monitoring wind patterns is vital; onshore winds can bring pollutants from coastal areas, while offshore winds offer temporary relief. Fog, common during the cooler months, can trap pollutants, requiring caution.