Rāhuri Air Quality Index (AQI)

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Rāhuri, nestled in the Ahmednagar district of Maharashtra, India, occupies a geographically significant position within the Deccan Plateau. Located at approximately 19.38°N, 74.65°E, the town sits at an elevation of around 570 meters (1870 feet) above sea level, contributing to a relatively cool climate compared to coastal Maharashtra. The surrounding landscape is predominantly agricultural, characterized by expansive fields of sugarcane, grapes, and other crops, reflecting the region's prominence in agricultural production. Rāhuri’s proximity to the Bhima River, though not directly on its banks, influences local microclimates and provides a source of irrigation for the surrounding farmlands. The urban–rural gradient transitions rapidly; Rāhuri itself is a relatively small town, but it serves as a vital trading hub for the surrounding rural communities. The Deccan Plateau's terrain, generally undulating with gently sloping hills, can influence air circulation patterns. To the east, the landscape gradually rises, potentially trapping pollutants under certain meteorological conditions. The town’s location within a broader agricultural belt means that seasonal agricultural practices, such as crop burning after harvest, can significantly impact local air quality. Furthermore, Rāhuri’s position within Maharashtra places it within reach of industrial zones in Pune and Mumbai, although the direct impact of these larger industrial centers is somewhat mitigated by the distance and intervening terrain. The relatively flat surrounding plains, however, can facilitate the transport of pollutants over considerable distances, impacting air quality even on days with seemingly favorable local conditions.

Rāhuri’s air quality experiences a distinct seasonal cycle dictated by the interplay of monsoon patterns, temperature fluctuations, and agricultural practices. The dry season, typically spanning from March to May, often witnesses a noticeable deterioration in air quality. High temperatures and low wind speeds create conditions conducive to the accumulation of pollutants, particularly particulate matter arising from agricultural residue burning – a common practice following the sugarcane harvest. Temperature inversions, where a layer of warm air traps cooler air near the ground, are also more frequent during this period, further exacerbating the problem. The monsoon season, from June to September, brings relief as strong winds and frequent rainfall effectively flush out pollutants, significantly improving air quality. October and November mark a transitional period, with decreasing rainfall and gradually increasing temperatures, potentially leading to a renewed rise in pollution levels. Winter months (December to February) are generally cooler, but fog formation can trap pollutants close to the ground, especially during periods of calm weather. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season and periods of fog, limiting outdoor exertion and considering the use of air purifiers indoors. Agricultural workers are particularly vulnerable and should utilize appropriate respiratory protection during burning activities. The timing of the monsoon arrival and intensity significantly influences the overall annual air quality profile, with a delayed or weaker monsoon potentially prolonging periods of poor air quality.