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Kumta, a coastal town in the Uttara Kannada district of Karnataka, India, occupies a unique geographic position. Situated at coordinates 14.4264°N, 74.4122°E, the town is nestled between the Arabian Sea and the Western Ghats, a UNESCO World Heritage site. The terrain is characterized by undulating hills, lush greenery, and a network of rivers and streams flowing down from the ghats. This proximity to the sea moderates temperatures, creating a humid tropical climate. Kumta’s urban character is that of a developing coastal town, transitioning from a primarily agricultural and fishing economy to one with increasing tourism and small-scale industry. The surrounding landscape is dominated by coconut plantations, cashew farms, and dense forests. The urban-rural gradient is relatively sharp, with agricultural lands immediately bordering the town. While Kumta itself doesn’t host heavy industry, regional industrial activity in nearby Hubli-Dharwad and Belgaum can contribute to long-range pollutant transport. The coastal location means sea breezes play a crucial role in dispersing pollutants, but can also trap them under certain meteorological conditions. The elevation, though not significant, influences local wind patterns and pollutant dispersion. Agricultural practices, including seasonal burning of crop residue, contribute to localised air quality concerns.

Kumta experiences a distinct wet and dry season pattern, heavily influenced by the Southwest Monsoon. Air quality generally improves dramatically during the monsoon months (June-September) due to heavy rainfall which effectively washes away particulate matter and increased humidity suppressing dust. However, increased humidity can also foster mold growth, impacting respiratory health. The post-monsoon period (October-November) sees a gradual decline in air quality as dust and pollutants accumulate. The dry season (December-May) presents the most challenging air quality conditions. January to February are typically the driest months, with stagnant air and temperature inversions trapping pollutants near the ground. Agricultural burning, common after the harvest in March and April, significantly degrades air quality. May, before the monsoon arrives, often experiences peak pollution levels. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the dry season, particularly in March-May. Wearing masks (N95 or equivalent) is advisable. Monitoring local weather patterns and avoiding strenuous activity on days with poor visibility is recommended. The sea breeze offers some relief, but its effectiveness varies with wind speed and direction.