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Mahugaon, nestled in the heart of Madhya Pradesh, India (22.5748° N, 75.7445° E), occupies a geographically significant position within the Malwa Plateau. The city’s terrain is predominantly undulating, characterized by gently sloping hills and fertile plains, a legacy of ancient river systems. Its elevation, averaging around 310 meters (1017 feet) above sea level, contributes to localized temperature inversions, particularly during cooler months, which can trap pollutants near the ground. Mahugaon’s location is crucial; it sits on the periphery of a significant agricultural belt, with surrounding lands dedicated to cotton, wheat, and soybean cultivation. This proximity means agricultural burning, a common practice after harvest, significantly impacts air quality, especially during the post-monsoon season. The urban–rural gradient is relatively sharp, with agricultural fields quickly giving way to the city’s residential and commercial areas. While Mahugaon lacks immediate proximity to major rivers or lakes, groundwater resources are vital, and the surrounding landscape is dotted with smaller tanks and reservoirs. Further afield, the Vindhya Range influences regional wind patterns, sometimes bringing cleaner air from the north, but also creating stagnant conditions when winds are weak. The city’s growth, while moderate, is increasingly influenced by its connection to larger industrial zones in Indore and Bhopal, leading to increased vehicular traffic and potential industrial emissions impacting the local atmosphere. The plateau’s generally dry climate exacerbates dust pollution, a persistent issue throughout the year.

Mahugaon’s air quality follows a distinct seasonal pattern dictated by the region’s tropical climate and prevailing meteorological conditions. The monsoon season (June to September) typically brings relief, with rainfall washing away particulate matter and increased wind speeds dispersing pollutants. However, even during this period, localized agricultural burning can cause spikes in air quality. The post-monsoon season (October-November) is often the most challenging, characterized by cooler temperatures, reduced wind speeds, and widespread agricultural residue burning. Temperature inversions become more frequent, trapping pollutants and creating stagnant air conditions. This period sees the highest potential for elevated air quality concerns. Winter (December-February) continues the trend of cooler temperatures and inversions, though occasional northerly winds can provide some ventilation. Spring (March-May) brings gradually warming temperatures and increasing wind speeds, leading to a general improvement in air quality, although dust storms can still occur. Fog, common during the winter months, significantly reduces visibility and traps pollutants close to the ground. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the post-monsoon and winter months, limiting outdoor exertion and wearing appropriate masks when necessary. Agricultural workers are particularly vulnerable and should be provided with protective equipment and awareness campaigns regarding the health impacts of smoke exposure. Public health advisories are crucial during periods of elevated concern, emphasizing the importance of indoor air quality and minimizing exposure to outdoor pollution.