Kurugodu Air Quality Index (AQI)

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Kurugodu, nestled in the Bellary district of Karnataka, India, occupies a geographically significant position within the Deccan Plateau. Located at approximately 15.3460° N latitude and 76.8360° E longitude, the town’s terrain is predominantly undulating, characteristic of the region's ancient geological formations. The surrounding landscape is a mosaic of semi-arid scrubland, interspersed with pockets of agricultural activity, primarily focused on rain-fed crops like groundnut and millet. The elevation, averaging around 550 meters above sea level, contributes to a generally stable atmospheric layer, though it can also exacerbate temperature inversions under certain conditions. Kurugodu’s proximity to the Tungabhadra River, though not directly adjacent, influences local humidity and microclimates. The town sits within a gradual urban–rural gradient, transitioning from a small urban centre to agricultural fields and sparsely populated villages. Bellary, a larger industrial hub, lies to the north, and its industrial activities, including mining and related processing, can contribute to regional air pollution transported by prevailing winds. The area’s geology, rich in iron ore, has historically driven mining operations, impacting land use and potentially releasing particulate matter into the atmosphere. The relatively flat surrounding plains allow for the easy dispersal of pollutants, but also mean that pollutants from distant sources can readily reach Kurugodu. The climate is hot and dry, with limited rainfall, further influencing atmospheric stability and pollutant dispersion.

Kurugodu’s air quality follows a distinct seasonal pattern dictated by the region’s tropical climate. The dry season, spanning roughly from March to May, typically witnesses the poorest air quality. High temperatures and minimal rainfall create stable atmospheric conditions, often leading to temperature inversions where cooler air becomes trapped beneath a layer of warmer air, preventing pollutants from dispersing vertically. This stagnation is compounded by agricultural practices, including crop residue burning after harvest, which releases significant particulate matter. The monsoon season, from June to September, brings relief as increased rainfall and stronger winds effectively flush out pollutants. However, heavy rainfall can also lead to increased humidity and the formation of ground-level ozone, a secondary pollutant. October and November represent a transitional period, with gradually decreasing temperatures and wind speeds, potentially leading to a slight deterioration in air quality. December and January are generally the most favourable months for outdoor activities, characterized by cooler temperatures, increased wind speeds, and relatively lower pollutant concentrations. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, limiting prolonged outdoor exposure and avoiding strenuous activity. During the monsoon, those with allergies should be mindful of pollen and mould spore counts. The lack of consistent wind patterns throughout the year means that localized pollution events can persist for extended periods, highlighting the need for continuous monitoring and mitigation strategies.