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Tēkkampatti, a small town in Tamil Nadu, India, rests at coordinates 11.2559°N, 76.8872°E, nestled within the broader Kongu Nadu region. The terrain is largely characterized by gently undulating plains, typical of the western Tamil Nadu landscape, transitioning towards the foothills of the Western Ghats further west. With a population of approximately 15,284, Tēkkampatti exhibits a strong rural-urban gradient, being surrounded by agricultural lands primarily dedicated to coconut, banana, and vegetable cultivation. The Noyyal River, a tributary of the Kaveri, flows nearby, influencing local microclimates and potentially contributing to humidity levels. While not directly within a major industrial belt, the proximity to textile and manufacturing hubs in Tiruppur and Coimbatore (approximately 50-70km distant) introduces a degree of regional air pollution transport. The town’s elevation is relatively low, around 250-300 meters above sea level, which can contribute to temperature inversions. Dust from agricultural activities, particularly during harvest seasons, is a significant local source of particulate matter. The town’s layout is typical of smaller Indian settlements, with a central commercial area and radiating residential zones, impacting localized ventilation patterns and pollutant dispersion.

Tēkkampatti experiences a tropical climate with distinct wet and dry seasons, heavily influencing air quality. The southwest monsoon, arriving in June and lasting through September, brings significant rainfall, temporarily scrubbing the air of particulate matter. However, increased humidity can also foster mold growth, impacting respiratory health. October to December sees the northeast monsoon, contributing to further, though generally less intense, rainfall and improved air quality. The dry season, from January to May, is when pollution levels typically peak. Higher temperatures and lower wind speeds exacerbate the concentration of dust from agricultural activities and emissions from regional industries. January and February often experience morning fog, trapping pollutants near the ground and creating localized poor air quality episodes. March and April are particularly challenging due to pre-monsoon dust storms. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit outdoor activity during these months. During the monsoon seasons, while air is cleaner, the risk of waterborne diseases increases, requiring precautions. Maintaining good ventilation indoors and using air purifiers during dry periods are recommended.