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Kavundappādi, nestled in the Tiruppur district of Tamil Nadu, India, occupies a geographically significant position within the Kaveri River basin. Its coordinates (11.4248° N, 77.5579° E) place it within a relatively flat, alluvial plain, characteristic of the delta region. The surrounding landscape is predominantly agricultural, with extensive cotton fields and textile processing units defining the regional economy. Kavundappādi’s proximity to Tiruppur, a major textile hub, is a crucial factor influencing its environmental profile. The urban–rural gradient is gradual, with smaller villages and agricultural land seamlessly blending into the town’s periphery. Elevation is minimal, rarely exceeding 100 meters above sea level, which can exacerbate the trapping of pollutants, particularly during periods of stagnant air. The Kaveri River, though not directly adjacent, exerts a regional influence on climate and humidity. The terrain’s flatness limits natural ventilation, potentially hindering the dispersion of airborne contaminants. The dominant land use pattern – agriculture and textile manufacturing – contributes to both particulate matter (from agricultural burning and textile dust) and gaseous pollutants (from industrial processes). The town’s location within a densely populated and economically active region means it is susceptible to pollution transported from surrounding industrial areas, creating a complex interplay of local and regional air quality challenges. The relatively low elevation and flat topography contribute to a tendency for pollutants to accumulate, especially during calmer weather conditions.

Kavundappādi experiences a tropical climate with distinct wet and dry seasons, significantly impacting air quality patterns. The dry season, typically spanning from March to May, often witnesses elevated pollution levels. High temperatures and reduced rainfall contribute to stagnant air conditions, hindering pollutant dispersion. Agricultural burning, a common practice for clearing fields after harvest, releases substantial amounts of particulate matter and carbon monoxide, exacerbating the situation. Temperature inversions, where cooler air is trapped beneath a layer of warmer air, are also more frequent during this period, further preventing vertical mixing and trapping pollutants near the ground. The monsoon season, from June to September, brings relief through increased rainfall and stronger winds, effectively flushing out pollutants and improving air quality. However, heavy rainfall can also lead to increased humidity, which can affect respiratory health. The post-monsoon season (October-November) sees a gradual decrease in rainfall and a return to calmer conditions, potentially leading to a slow increase in pollution levels. December and January are generally cooler and drier, with moderate wind speeds, resulting in relatively stable air quality. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, limiting outdoor activities during peak pollution periods. Maintaining indoor air quality through ventilation and air purifiers is also advisable. The agricultural cycle dictates much of the seasonal pollution profile, making sustainable agricultural practices crucial for long-term air quality improvement.