Mohania Air Quality Index (AQI)

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Mohania, a small city nestled in the eastern Indian state of Bihar, occupies a relatively flat terrain within the Gangetic plains. Located at coordinates 25.1692°N, 83.6192°E, its elevation is modest, contributing to limited natural air dispersion. The city’s geography is dominated by alluvial soil, indicative of its proximity to the Ghaghara River, a major tributary of the Ganges, which flows nearby. This riverine influence introduces humidity and can contribute to localised fog formation, particularly during the winter months. Mohania is situated within a predominantly agricultural zone, with rice and wheat being staple crops. While not a major industrial hub itself, the region is increasingly experiencing the effects of industrial activity from nearby larger towns and cities. The urban-rural gradient is quite sharp; Mohania serves as a market town for surrounding villages, leading to increased vehicular traffic and localised dust generation. The surrounding landscape is characterised by intensely cultivated farmland, interspersed with small pockets of vegetation. This combination of factors – flat terrain, agricultural practices, and increasing traffic – creates a specific set of conditions influencing local air quality. The lack of significant topographical features hinders the flushing out of pollutants, making Mohania susceptible to air stagnation events.

Mohania experiences a distinct seasonal air quality pattern dictated by the monsoon and post-monsoon climate. The monsoon season (June-September) generally brings temporary relief from pollution due to rainfall washing particulate matter from the atmosphere. However, increased humidity can also foster mould growth, impacting respiratory health. October-November sees a deterioration in air quality as stubble burning from surrounding agricultural lands becomes prevalent, releasing significant amounts of smoke and particulate matter. This period is particularly challenging for those with pre-existing respiratory conditions. Winter (December-February) often features temperature inversions, trapping pollutants near the ground and leading to stagnant, hazy conditions. Fog formation further exacerbates this, reducing visibility and increasing pollutant concentrations. March-May is characterised by rising temperatures and dry winds, which can stir up dust from agricultural fields and construction activities, contributing to particulate matter pollution. During these months, avoiding strenuous outdoor activity during peak heat and dust periods is advisable. Sensitive groups – children, the elderly, and those with respiratory illnesses – should take extra precautions throughout the year, particularly during the post-monsoon and winter seasons.