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Rewāri, nestled in the southern part of Haryana, India, occupies a geographically significant position within the Aravalli Range foothills. Its coordinates (28.1800° N, 76.6200° E) place it at an elevation of approximately 220 meters (722 feet) above sea level, contributing to a relatively mild climate. The surrounding landscape is a blend of agricultural plains and undulating hills, characteristic of the region's transition zone between the fertile Indo-Gangetic Plain and the rugged Aravallis. Rewāri’s urban character is evolving; it’s a rapidly developing city with a mix of traditional residential areas and burgeoning industrial zones. The city’s proximity to Delhi (roughly 120 km) and other industrial hubs like Bhiwadi has led to increased economic activity and, consequently, population growth. The urban–rural gradient is noticeable, with agricultural fields and smaller villages gradually giving way to the city’s expanding footprint. While Rewāri lacks direct access to major rivers or lakes, groundwater resources are vital for agriculture and domestic use. The Aravalli hills to the west act as a partial barrier, influencing wind patterns and potentially trapping pollutants under certain meteorological conditions. The presence of extensive agricultural land surrounding Rewāri, coupled with nearby industrial belts, creates a complex interplay of factors impacting air quality, with seasonal agricultural burning and industrial emissions being key considerations. The terrain, while not dramatically steep, can still influence local air circulation patterns.

Rewāri’s air quality experiences a distinct seasonal cycle heavily influenced by regional weather patterns. The dry, cool months of October through February present the most challenging period. Stagnant air, frequent temperature inversions, and dense fog are common, trapping pollutants close to the ground. Agricultural burning, a widespread practice to clear crop residue after the harvest season (typically October-November), significantly contributes to particulate matter pollution during this time. The lack of strong winds exacerbates the problem, preventing pollutants from dispersing. January and February often see the poorest air quality. The arrival of the monsoon season (June-September) brings a welcome respite, as rainfall washes away pollutants and increased wind speeds facilitate dispersion. However, even during the monsoon, localized pollution can occur due to industrial emissions and vehicular traffic. The summer months (March-May) are generally drier, with higher temperatures and occasional dust storms. While temperatures rise, wind speeds tend to be higher than in winter, aiding in pollutant dispersal, though construction activities can still contribute to particulate matter. Spring (March-April) can be variable, with periods of improved air quality interspersed with episodes of dust and localized pollution. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the winter months, limiting outdoor exposure and using air purifiers when possible. During periods of heavy agricultural burning, staying indoors with windows closed is advisable.