Rūdarpur Air Quality Index (AQI)

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Rūdarpur, nestled in the Haridwar district of Uttar Pradesh, India, occupies a geographically significant position within the Indo-Gangetic Plain. Located at approximately 26.43° N latitude and 83.61° E longitude, the city’s terrain is predominantly flat, characteristic of the alluvial plains formed by the Ganga and its tributaries. The elevation is relatively low, around 287 meters (942 feet) above sea level, contributing to a tendency for pollutants to accumulate, particularly during periods of low wind speed. Rūdarpur’s proximity to the foothills of the Himalayas influences its microclimate, occasionally trapping moisture and exacerbating fog formation, a key factor in air quality degradation. The surrounding landscape is a mix of agricultural land – primarily sugarcane and wheat cultivation – and developing industrial areas. This agricultural activity, while vital to the regional economy, contributes to seasonal particulate matter pollution through crop residue burning, especially after the harvest season. The urban–rural gradient around Rūdarpur is gradual, with smaller towns and villages blending into the agricultural landscape. The city itself is experiencing rapid urbanization, with increasing vehicular traffic and construction activities adding to local pollution sources. The nearby industrial belt, centered around Haridwar, introduces emissions from various manufacturing processes, impacting air quality not only in Rūdarpur but also in the wider region. The lack of significant natural barriers further limits the dispersion of pollutants, making Rūdarpur vulnerable to regional air pollution episodes.

Rūdarpur’s air quality follows a distinct seasonal pattern dictated by the region’s monsoon climate. The dry season, spanning roughly October to May, typically witnesses the poorest air quality. November and December are particularly challenging, coinciding with the post-harvest period when farmers often resort to crop residue burning to clear fields quickly, releasing substantial amounts of particulate matter into the atmosphere. Temperature inversions, common during these colder months, trap pollutants near the ground, intensifying their impact. January and February often experience dense fog, further reducing visibility and hindering pollutant dispersion. The monsoon season, from June to September, brings relief as rainfall washes away pollutants and strong winds disperse accumulated emissions. However, even during the monsoon, localized pollution can occur due to construction activities and vehicular traffic. The transition months of March and April see a gradual increase in temperature and decreasing rainfall, leading to a slow deterioration in air quality. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, particularly during periods of crop residue burning and fog. Limiting outdoor exertion and wearing appropriate masks are advisable. During the monsoon, while generally cleaner, individuals with allergies should be mindful of pollen counts. The city’s location within the Indo-Gangetic Plain means it is also susceptible to transboundary pollution, with pollutants transported from distant industrial regions.