Jitwārpur Kumhra Air Quality Index (AQI)

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Jitwārpur Kumhra, nestled within the state of Bihar, India, occupies a relatively flat expanse of the Indo-Gangetic Plain at coordinates 25.7852°N, 85.7044°E. This location, typical of much of Bihar, is characterised by alluvial soil deposited by the Ganges and its tributaries, contributing to the region’s intensive agricultural activity. The city’s elevation is low, averaging around 70 meters above sea level, which inhibits natural dispersion of pollutants. Surrounding Jitwārpur Kumhra is a predominantly rural landscape, heavily devoted to agriculture – primarily rice, wheat, and maize cultivation. While not directly adjacent to a major industrial belt, the broader region experiences industrial activity in nearby cities like Patna, contributing to regional background pollution. The urban-rural gradient is sharp; the city itself is a relatively small settlement of approximately 14,160 people, quickly transitioning to agricultural fields. This proximity to agricultural land introduces seasonal burning of crop residue as a significant localised emission source. The lack of significant topographical features, like hills or mountains, means that wind patterns play a crucial role in pollutant transport, but the flat terrain offers little in the way of natural ventilation. The Phalgu River, a tributary of the Ganges, flows nearby, but its influence on local air circulation is limited.

Air quality in Jitwārpur Kumhra follows a distinct seasonal pattern heavily influenced by the monsoon and post-monsoon periods. The summer months (April-June) see rising temperatures and stagnant air, exacerbating dust and localised emissions from vehicle traffic and small-scale industries, leading to poorer air quality. October-November, following the monsoon’s retreat, is often the most challenging period. Cooler temperatures create temperature inversions, trapping pollutants near the ground, combined with the widespread burning of crop residue after the harvest. This creates a haze that significantly degrades air quality. The monsoon season (July-September) generally brings relief, as rainfall washes away pollutants and increased humidity suppresses dust. However, even during the monsoon, localised sources and regional transport can contribute to elevated pollution levels. Winter (December-February) sees cool, dry conditions and potential for fog, further trapping pollutants. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during October-November and December-February. Avoiding peak hours for commuting and using masks when outdoors during these periods is advisable. Monitoring local conditions and heeding health advisories is crucial.