Pūranpur Air Quality Index (AQI)

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Pūranpur, nestled in the Pilibhit district of Uttar Pradesh, India, occupies a geographically significant position within the Indo-Gangetic Plain. Located at approximately 28.52°N, 80.15°E, the city’s terrain is predominantly flat, characteristic of the fertile alluvial plains formed by the Ganga and Yamuna river systems. The elevation is relatively low, hovering around 180 meters above sea level, contributing to a tendency for pollutants to accumulate, particularly during periods of atmospheric stability. Pūranpur’s surrounding landscape is a mosaic of agricultural fields – primarily sugarcane, wheat, and rice – interspersed with pockets of dense deciduous forests, notably towards the Dudhwa Tiger Reserve, a crucial biodiversity hotspot to the east. This agricultural intensity, coupled with the prevalence of traditional farming practices like crop residue burning, significantly influences regional air quality. The urban–rural gradient is gradual, with smaller villages and agricultural holdings directly bordering the city limits. While Pūranpur lacks direct proximity to major rivers, it benefits from groundwater resources, supporting irrigation and local industries. The city’s location within a densely populated region, and its connection to broader industrial belts in northern Uttar Pradesh, means it is susceptible to transboundary pollution transport. The flat topography and limited natural ventilation exacerbate the challenges in dispersing pollutants, making Pūranpur’s air quality particularly sensitive to local emissions and regional meteorological patterns.

Pūranpur’s air quality exhibits a distinct seasonal cycle heavily influenced by regional climate patterns. The dry, cool months of November through February present the most challenging period. Temperature inversions, common during this time, trap pollutants close to the ground, leading to increased concentrations. Agricultural burning, a widespread practice following the harvest of crops like rice and wheat, contributes significantly to particulate matter pollution. Dense fog, frequently occurring during these months, further restricts atmospheric mixing and exacerbates the problem. March to May marks the transition to the pre-monsoon season, characterized by rising temperatures and increased dust from construction activities and unpaved roads. While winds generally increase, they are often insufficient to fully disperse pollutants. The arrival of the monsoon season (June to September) brings a welcome respite, as rainfall washes away particulate matter and strong winds disperse gaseous pollutants. However, heavy rainfall can also lead to localized flooding and associated issues. October sees a gradual return to drier conditions, with a slow build-up of pollutants as the agricultural cycle restarts. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry winter months and the pre-monsoon period, limiting outdoor exertion and wearing appropriate masks. Maintaining indoor air quality through ventilation and air purifiers is also advisable during peak pollution periods. The city’s agricultural dependence necessitates sustainable farming practices to mitigate the impact of crop residue burning.