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Mājra, a small town nestled in the state of Haryana, India, occupies a geographically significant position within the broader Indo-Gangetic Plain. Located at approximately 28.6670° N, 76.4560° E, its coordinates place it within a region characterized by relatively flat terrain, typical of alluvial plains formed by the Indus and Ganges river systems. The town’s elevation is modest, contributing to a tendency for pollutants to accumulate, particularly during periods of atmospheric stability. Mājra’s proximity to Chandigarh, a major urban center and planned city, exerts a considerable influence on its urban character and, crucially, its air quality. The surrounding landscape is a mix of agricultural land – predominantly wheat and rice cultivation – and scattered rural settlements. This agricultural activity, while vital to the regional economy, contributes to seasonal particulate matter pollution through stubble burning practices. The urban–rural gradient is gradual, with Mājra exhibiting characteristics of both, experiencing increasing urbanization while retaining some agricultural influences. The town sits relatively far from major river systems, lacking the natural air cleansing effects of large bodies of water. Furthermore, its location within the broader industrial belt of Haryana, which includes significant manufacturing and processing industries, exposes it to pollutants transported from further afield. Topography offers little in the way of natural ventilation, exacerbating the challenges of maintaining clean air. The prevailing winds, often light and variable, can trap pollutants, leading to localized air quality issues.

Mājra’s air quality follows a distinct seasonal pattern dictated by regional meteorology and agricultural practices. The winter months (November to February) consistently present the most challenging conditions. Cold temperatures frequently lead to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing pollutants from dispersing. This, combined with the prevalence of dense fog, significantly reduces visibility and concentrates particulate matter. Stubble burning by farmers in the surrounding agricultural areas further compounds the problem, releasing substantial amounts of smoke and pollutants into the atmosphere. Spring (March-May) sees a gradual improvement as temperatures rise and winds become more frequent, aiding in pollutant dispersion. However, dust storms originating from the Thar Desert can occasionally impact air quality. The monsoon season (June to September) brings relief, with rainfall washing away pollutants and increased wind speeds facilitating their removal. However, heavy rainfall can also lead to localized flooding and associated issues. The post-monsoon period (October) is a transitional phase, with decreasing rainfall and increasing temperatures, often accompanied by stagnant air conditions, leading to a gradual deterioration in air quality before the onset of winter’s most severe conditions. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the winter months, limiting outdoor exposure and considering the use of air purifiers. During periods of high dust, wearing masks is advisable. Maintaining indoor air quality is paramount throughout the year.