Khānpur Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Khānpur, nestled in the fertile plains of Bihar, India, occupies a geographically significant position within the Ganges River basin. Located at approximately 25.8572° N, 85.9330° E, the town’s terrain is predominantly flat, characteristic of the Indo-Gangetic Plain. The elevation is relatively low, contributing to a tendency for pollutants to accumulate, particularly during periods of atmospheric stability. Khānpur’s proximity to the Ganges River, while providing a vital water source, can also influence local air quality; stagnant river conditions can exacerbate the trapping of pollutants. The surrounding landscape is a mosaic of agricultural fields – primarily rice and wheat cultivation – interspersed with small villages and scattered industrial units. This agricultural zone contributes to seasonal particulate matter, especially during harvest times when burning crop residue is practiced. The urban–rural gradient around Khānpur is gradual, with the town serving as a local trading and service hub for the surrounding agricultural communities. The region’s climate is subtropical, with hot summers and a distinct monsoon season. The lack of significant topographical features – hills or valleys – limits natural air circulation, hindering the dispersion of pollutants. Furthermore, the town’s location within a densely populated region of India means it is susceptible to transboundary pollution, with pollutants originating from larger industrial centers and urban areas to the north and east impacting local air quality. The flat terrain and prevailing wind patterns often lead to a build-up of pollutants, especially during cooler months.

Khānpur’s air quality follows a distinct seasonal pattern dictated by the region’s subtropical climate and agricultural practices. The pre-monsoon season (March-May) typically witnesses the poorest air quality. High temperatures and low wind speeds create atmospheric stability, fostering temperature inversions that trap pollutants near the ground. Agricultural burning of crop residue after the winter harvest significantly contributes to particulate matter pollution during this period. The monsoon season (June-September) brings relief, with increased rainfall and stronger winds dispersing pollutants. However, heavy rainfall can also lead to increased humidity and the formation of secondary pollutants. The post-monsoon season (October-November) sees a gradual return to poorer air quality as temperatures drop and wind speeds decrease, although not as severely as in the pre-monsoon period. Fog, common during these months, further exacerbates the problem by trapping pollutants. Winter (December-February) is generally the most challenging period, with cold temperatures and frequent fog leading to prolonged episodes of poor air quality. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor activity during these periods, particularly during early morning and late evening hours when fog is prevalent. Maintaining indoor air quality through ventilation and air purifiers is also advisable. Agricultural practices, particularly the burning of crop residue, are a key driver of seasonal pollution fluctuations, highlighting the need for sustainable agricultural alternatives. The interplay of meteorological factors and human activities creates a complex air quality profile for Khānpur.