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Rāpar, situated in the arid Kutch district of Gujarat, India, occupies a distinctive geographic position at coordinates 23.5700°N, 70.6300°E, approximately 50 kilometers from the Pakistan border. This small city lies within the vast, flat expanse of the Great Rann of Kutch, a seasonal salt marsh that dominates the landscape, with an elevation around 80 meters above sea level. The terrain is predominantly flat and semi-arid, characterized by sparse vegetation and saline soils, which contribute to dust generation—a significant factor in local air quality. Rāpar's urban character blends traditional rural elements with emerging urban infrastructure, serving as a regional administrative and commercial hub for surrounding agricultural villages. Its location in the Kutch region places it away from major industrial belts like the Ahmedabad-Vadodara corridor, but local pollution sources include vehicular emissions, biomass burning for cooking and heating, and occasional agricultural residue burning in nearby farmlands. The city's proximity to the Arabian Sea, about 150 kilometers to the southwest, moderates temperatures slightly but does not significantly influence air pollution dispersion due to the region's low wind speeds and frequent temperature inversions. The urban–rural gradient sees higher particulate matter concentrations in the city center compared to outlying areas, exacerbated by unpaved roads and construction activities. This geographic setting, combined with its semi-arid climate, makes Rāpar susceptible to elevated levels of particulate matter, especially during dry seasons when dust storms from the Rann can worsen air quality.

In Rāpar, air quality follows a distinct seasonal pattern shaped by the region's arid climate and monsoon influences. During winter (December to February), pollution peaks due to temperature inversions that trap pollutants near the ground, combined with increased biomass burning for heating and calm winds; sensitive groups like children and the elderly should limit outdoor activities in these months, especially during early mornings when fog can exacerbate respiratory issues. Spring (March to May) sees high temperatures and dry conditions, leading to dust storms from the Rann of Kutch that spike particulate levels—outdoor exercise is best avoided during afternoon hours when dust activity is highest. The monsoon season (June to September) brings relief as rains wash away pollutants and winds disperse them, making this the most favourable time for outdoor activities with generally cleaner air. Post-monsoon (October to November) experiences a gradual deterioration in air quality as agricultural burning resumes and temperatures drop, setting the stage for winter peaks; during this transition, it's advisable to monitor local air quality reports and plan activities for midday when dispersion is better. Throughout the year, vulnerable populations should use air purifiers indoors during peak pollution periods and consult healthcare providers for personalized advice, as the city's air quality can vary significantly with seasonal weather patterns.