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Nestled in the heart of India's Madhya Pradesh state, Katni occupies a strategic position at the crossroads of central India's mineral-rich belt and agricultural plains. Situated at coordinates 23.8300°N, 80.4000°E with an elevation of approximately 350 meters above sea level, the city lies within the Vindhya Range foothills, creating a basin-like terrain that significantly influences its air quality patterns. Katni's urban character blends industrial activity with traditional settlement, positioned along the Narmada River basin's northeastern edge, though the city itself lacks major water bodies, contributing to dust accumulation. The surrounding landscape features limestone-rich plateaus and quarries that dominate the economic geography, while agricultural zones of wheat and pulses cultivation extend to the south and east. As a major railway junction connecting Mumbai to Kolkata and Delhi to Chennai, Katni experiences constant transit emissions within its urban core. The city's location in the tropical wet-and-dry climate zone creates distinct seasonal air quality challenges, with industrial dust from cement factories and limestone crushing operations mingling with road dust from unpaved peripheral areas. The urban-rural gradient shows decreasing pollution levels toward the forested areas of the Bandhavgarh Tiger Reserve to the northeast, but Katni's basin topography often traps pollutants, particularly during cooler months when temperature inversions form.

Katni's air quality follows a pronounced seasonal rhythm dictated by its tropical wet-and-dry climate and industrial activities. During winter (November-February), pollution peaks dramatically as temperature inversions trap cement factory dust, quarry emissions, and vehicle exhaust close to the ground, with calm winds and frequent fog episodes creating hazardous breathing conditions—these months should be avoided by those with respiratory conditions. The post-monsoon period (October) sees improving conditions as lingering rains suppress dust, though industrial activity resumes. Summer (March-June) brings extreme heat that photochemically transforms pollutants while strong winds disperse but also stir up road dust, creating variable air quality—early mornings offer better conditions before thermal turbulence develops. The monsoon (July-September) provides the cleanest air as heavy rains from the southwest monsoon wash away particulate matter, though thunderstorms can temporarily increase ozone levels. Sensitive groups including children, elderly, and those with asthma should limit outdoor activity during winter mornings when inversion layers are strongest, use air purifiers during peak pollution months, and schedule essential outings for monsoon months when natural cleansing occurs. The transitional periods between seasons often see rapid air quality changes as wind patterns shift.