Rāiganj Bāzār Air Quality Index (AQI)

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Rāiganj Bāzār, nestled in the fertile plains of Uttar Pradesh, India, occupies a geographically strategic position within the Ganges-Yamuna Doab, a region historically significant for its agricultural productivity. Located at approximately 26.78°N, 82.14°E, the town sits at a relatively low elevation, around 115 meters above sea level, contributing to a generally flat terrain. This flatness, while beneficial for agriculture, can exacerbate air quality issues by limiting atmospheric dispersion. The surrounding landscape is predominantly agricultural, characterized by extensive fields of wheat, rice, and sugarcane – typical of the Indo-Gangetic Plain. The proximity to these agricultural zones means that seasonal burning of crop residue, a common practice after harvest, significantly impacts local air quality. Rāiganj Bāzār is not directly adjacent to any major river, though it benefits from the region's groundwater resources. The urban–rural gradient transitions rapidly around the town, with agricultural land quickly giving way to residential and commercial areas. While not situated directly within a major industrial belt, its location within Uttar Pradesh, a state experiencing rapid industrial growth, means it is susceptible to pollution drift from larger industrial centers further afield. The prevailing wind patterns across the Indo-Gangetic Plain, often influenced by the Tibetan Plateau and the Bay of Bengal, play a crucial role in the transport and dispersion of pollutants, impacting Rāiganj Bāzār’s air quality. The flat topography and agricultural surroundings combine to create conditions where pollutants can accumulate, particularly during periods of stagnant air.

Rāiganj Bāzār’s air quality follows a distinct seasonal pattern dictated by the region’s monsoonal climate. The dry season, typically spanning from October to May, presents the most significant air quality challenges. During these months, lower temperatures and reduced rainfall often lead to temperature inversions, trapping pollutants close to the ground. The burning of crop residue after the harvest of Kharif crops (monsoon crops) in October and November contributes heavily to particulate matter pollution, creating a period of particularly poor air quality. Dust storms, common in March and April, further degrade air quality, increasing levels of PM10. The monsoon season (June to September) brings relief, with increased rainfall and stronger winds dispersing pollutants. However, even during the monsoon, localized pollution from agricultural practices and vehicular emissions persists. The transition months of September and October are often characterized by a gradual deterioration in air quality as the monsoon weakens and agricultural burning begins. The winter months (December-January) are typically the coldest, with frequent fog episodes that further impede pollutant dispersion. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor activity during the dry season, particularly during peak agricultural burning periods and when fog is present. Maintaining indoor air quality through ventilation and air purifiers is also advisable. During the monsoon, while air quality generally improves, those with allergies should remain vigilant regarding pollen and mold counts.