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Jasol, Rajasthan, a small town nestled in the Shekhawati region of India, occupies a geographically significant position within a landscape sculpted by the Thar Desert's fringes. Located at approximately 25.49° N, 72.13° E, Jasol sits at an elevation of roughly 450 meters (1,476 feet) above sea level, contributing to a relatively dry climate and influencing local air circulation patterns. The surrounding terrain is characterized by undulating sand dunes, rocky outcrops, and sparse vegetation typical of semi-arid environments. While Jasol itself lacks direct proximity to major bodies of water, the Luni River flows a moderate distance away, impacting regional humidity and potentially influencing atmospheric stability. The town’s urban character is distinctly rural, with a traditional layout reflecting its historical role as a trading post and agricultural hub. The urban–rural gradient is gradual, transitioning quickly into agricultural fields primarily used for rain-fed farming of crops like bajra and guar. To the east, one finds the broader Shekhawati industrial belt, with small-scale manufacturing and processing units, contributing to localized pollution sources. The prevailing winds, often originating from the west, carry dust and pollutants from the Thar Desert and potentially from industrial areas, impacting Jasol’s air quality. The town’s relatively isolated location, while offering some protection from larger urban pollution plumes, also means it is susceptible to regional dust storms and the accumulation of locally generated emissions. The topography, with its gentle slopes, can trap pollutants, particularly during periods of low wind speed.

Jasol’s air quality follows a distinct seasonal pattern dictated by the region’s climate. The dry, hot months of April and May typically experience the poorest air quality. Intense solar radiation increases ground-level ozone formation, while frequent dust storms originating from the Thar Desert significantly elevate particulate matter concentrations. Temperature inversions, common during these months, trap pollutants near the ground, exacerbating the problem. The monsoon season, arriving in July and lasting through September, brings a welcome respite. Increased rainfall effectively washes pollutants from the atmosphere, and higher humidity reduces dust generation. However, periods of intense rainfall can also lead to localized flooding and the release of pollutants from stagnant water sources. October and November mark a transitional period, with decreasing rainfall and gradually increasing temperatures. The cooler months of December and January are generally characterized by calmer winds and frequent fog, which can trap pollutants and reduce visibility. While overall pollution levels may be lower than in the summer, the stagnant air conditions can still lead to localized air quality issues. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the summer months and be mindful of fog conditions in winter. Outdoor activities are generally best enjoyed during the monsoon season, although heavy rainfall can present its own challenges. The gradual warming trend in March and April necessitates increased awareness of potential air quality deterioration as dust and ozone levels begin to rise.