Pukhrāyān Air Quality Index (AQI)

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Pukhrāyān, a small city nestled within the vast plains of Uttar Pradesh, India, occupies a geographically significant position at coordinates 26.2300°N, 79.8500°E. The terrain is predominantly flat, characteristic of the Indo-Gangetic Plain, with a gentle slope towards the south. This flatness contributes to limited natural dispersion of pollutants. The city’s elevation is relatively low, around 128 meters above sea level, further reducing atmospheric mixing. Pukhrāyān is not directly adjacent to any major bodies of water, though the Betwa River flows nearby, influencing local humidity. The surrounding landscape is a mosaic of agricultural land, primarily dedicated to wheat, rice, and pulses, interspersed with small rural settlements. While not a major industrial hub itself, Pukhrāyān is within reach of larger industrial areas in Kanpur and surrounding districts, contributing to regional background pollution. The urban-rural gradient is quite sharp; the city centre is densely populated, while the periphery quickly transitions into agricultural fields. This proximity to agricultural practices introduces seasonal biomass burning, a significant source of particulate matter. The lack of substantial green cover within the city limits exacerbates the urban heat island effect, trapping pollutants and hindering their dispersal. The prevailing wind patterns, often calm during certain periods, further compound these issues, leading to localised pollution hotspots.

Pukhrāyān experiences a distinct seasonal air quality pattern dictated by the monsoon and post-monsoon periods. The summer months (April-June) see rising temperatures and dust storms, increasing particulate matter concentrations. Calm winds exacerbate the situation, trapping pollutants. October-November, following the monsoon’s retreat, is often the most polluted period. Stubble burning from the harvested rice crop dominates, creating a thick haze and significantly degrading air quality. This period coincides with temperature inversions, where a layer of warm air traps cooler, polluted air near the ground. The winter months (December-February) bring cooler temperatures and often fog, further reducing visibility and trapping pollutants. The monsoon season (July-September) offers a temporary respite, as rainfall washes away pollutants and increased humidity suppresses dust. However, even during the monsoon, localised pollution from traffic and small-scale industries persists. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the post-monsoon and winter months. Avoiding peak traffic hours and using N95 masks when outdoors are recommended precautions. The best time for outdoor activities is generally during and immediately after the monsoon rains.