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Panjīpāra, a small urban centre in West Bengal, India, occupies a relatively flat terrain within the Indo-Gangetic Plain. Located at approximately 26.1369°N latitude and 88.0132°E longitude, the city’s geography is defined by its proximity to the extensive wetlands and river systems characteristic of the region. The surrounding landscape is predominantly agricultural, with rice paddies and jute cultivation dominating the rural areas immediately bordering the urban core. This agricultural activity, while vital to the local economy, contributes to seasonal biomass burning, impacting local air quality. Panjīpāra isn’t situated near major industrial belts, but regional brick kilns and smaller-scale manufacturing units contribute to particulate matter pollution. The urban-rural gradient is fairly sharp, transitioning quickly from densely populated residential areas to agricultural fields. The city’s elevation is low, increasing its susceptibility to humidity and temperature inversions, which trap pollutants near the ground. Its position within the Ganges Delta means it experiences significant seasonal flooding, potentially dispersing pollutants but also creating conditions for mould growth and related respiratory issues. The lack of significant topographical features limits natural ventilation, exacerbating pollution during stagnant weather conditions. Understanding this interplay of landscape and urban form is crucial for addressing air quality challenges in Panjīpāra.

Panjīpāra’s air quality follows a distinct seasonal pattern dictated by the monsoon and post-monsoon climate. The pre-monsoon months (March-May) see a build-up of pollutants due to stagnant air, high temperatures, and dust from construction and agricultural activities. This period is generally the least favourable for outdoor activity, particularly for those with respiratory conditions. The arrival of the monsoon (June-September) brings a temporary respite, as rainfall washes away pollutants and increased humidity suppresses dust. However, the monsoon also introduces the risk of waterborne diseases and mould growth, impacting respiratory health. Post-monsoon (October-November) often experiences a resurgence of pollution as agricultural burning increases following the harvest, and cooler temperatures lead to temperature inversions trapping pollutants. This is a particularly vulnerable period. Winter (December-February) brings consistently poor air quality due to low wind speeds, temperature inversions, and increased reliance on biomass burning for heating. Sensitive groups – children, the elderly, and those with pre-existing respiratory or cardiovascular conditions – should limit outdoor exposure during these months. Monitoring wind patterns and avoiding peak pollution times are essential for mitigating health risks throughout the year.