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Farīdpur, a small city nestled in the western Uttar Pradesh region of India, occupies a geographically significant position within the Indo-Gangetic Plain. Located at approximately 28.2086° N, 79.5381° E, its terrain is predominantly flat, characteristic of the alluvial plains formed by the Yamuna River and its tributaries. The surrounding landscape is a mosaic of agricultural fields – primarily wheat, sugarcane, and pulses – interspersed with small villages and scattered groves of trees. This intensive agricultural activity, while vital to the regional economy, contributes to seasonal air pollution through practices like stubble burning. Farīdpur’s proximity to the Yamuna River, though providing a source of water, also influences local weather patterns, occasionally leading to humidity and fog, which can trap pollutants. The city’s urban footprint is relatively compact, with a gradual urban-rural gradient extending outwards into the agricultural hinterland. It’s situated far from major industrial belts, mitigating direct industrial emissions, but it’s not immune to the impacts of regional pollution transported by prevailing winds. The elevation is low, around 180 meters above sea level, which, combined with the flat topography, can exacerbate the accumulation of pollutants, particularly during periods of stagnant air. The lack of significant natural barriers further allows for the easy dispersal – or conversely, the concentration – of airborne contaminants depending on meteorological conditions. The city’s small size means that localized sources, such as vehicular traffic and residential cooking, have a disproportionately large impact on air quality.

Farīdpur’s air quality follows a distinct seasonal pattern dictated by the region’s monsoonal climate. The summer months (April-June) are typically characterized by high temperatures and dry conditions, often leading to increased dust and particulate matter due to windblown soil and construction activities. Temperature inversions, common during this period, trap pollutants close to the ground, worsening air quality. The monsoon season (July-September) brings relief with increased rainfall, which naturally cleanses the atmosphere, significantly improving air quality. However, the monsoon also introduces humidity, which can exacerbate respiratory issues for some individuals. The post-monsoon season (October-November) is arguably the most challenging. This period coincides with the harvest season, and widespread stubble burning in surrounding agricultural fields releases significant amounts of smoke and particulate matter, dramatically degrading air quality. Fog, frequently occurring during these months, further traps pollutants, creating hazardous conditions. Winter (December-March) generally sees a gradual improvement in air quality as temperatures drop and wind speeds increase, dispersing pollutants. However, cold temperatures can also lead to increased use of biomass fuels for heating, contributing to localized pollution. Sensitive groups, including children, the elderly, and individuals with pre-existing respiratory conditions, should limit outdoor activity during the post-monsoon and summer months, particularly on days with visible haze or fog. Wearing masks and avoiding strenuous activity can also help mitigate exposure.