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Malebennūr, nestled in the Hassan district of Karnataka, India, occupies a geographically significant position within the Deccan Plateau. Located at approximately 14.35°N latitude and 75.74°E longitude, the town sits at an elevation of roughly 1150 meters (3773 feet) above sea level, contributing to a relatively cool and pleasant climate compared to lower-lying regions of Karnataka. The surrounding landscape is characterized by undulating hills and valleys, typical of the Southern Deccan, interspersed with agricultural fields and patches of dry deciduous forest. Malebennūr’s proximity to the Tungabhadra River, though not directly on its banks, influences local humidity and microclimates. The town’s urban character is that of a developing regional center, serving as a hub for surrounding agricultural communities. The dominant land use is a mix of residential areas, small-scale commercial establishments, and agricultural support services. The urban–rural gradient is relatively sharp; the town quickly transitions to agricultural land and scattered rural settlements. Significant industrial activity is limited, with most economic activity centered around agriculture (particularly coffee, spices, and arecanut) and related processing. This agricultural activity, while vital to the local economy, can contribute to localized air pollution through the burning of crop residue and the use of fertilizers. The plateau's topography can also trap pollutants, particularly during periods of low wind speed, impacting air quality within Malebennūr. The surrounding landscape’s relatively sparse vegetation cover further limits the natural capacity to filter airborne pollutants.

Malebennūr’s air quality experiences a distinct seasonal pattern dictated by the region’s tropical climate and monsoon cycles. The dry season, typically spanning from March to May, often witnesses a noticeable increase in particulate matter. This is largely attributable to increased agricultural burning of crop residue after harvest, combined with lower humidity and stable atmospheric conditions. Temperature inversions, common during these months, trap pollutants close to the ground, exacerbating the issue. The monsoon season, from June to September, brings relief as rainfall washes away pollutants and strong winds disperse them. However, heavy rainfall can also lead to increased soil erosion and dust, temporarily impacting air quality. October and November represent a transitional period, with decreasing rainfall and gradually increasing temperatures, potentially leading to a resurgence of particulate matter. December and January are generally the coolest months, with relatively clear skies and improved air quality, although fog can occasionally form, trapping pollutants. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season (March-May) and be mindful of potential dust events during the monsoon. Outdoor activities are generally more favorable during the cooler months (December-January) and the monsoon season, although vigilance regarding localized dust is still advised. The interplay of wind patterns, temperature fluctuations, and agricultural practices significantly shapes Malebennūr’s air quality throughout the year, demanding proactive mitigation strategies.