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Bhankarpur, nestled in the fertile plains of Punjab, India (30.6500° N, 76.8200° E), occupies a geographically strategic yet challenging position concerning air quality. The city’s location within the Indo-Gangetic Plain dictates a predominantly flat terrain, averaging around 240 meters above sea level. This low elevation, combined with the surrounding landscape of expansive agricultural fields – primarily wheat and rice cultivation – contributes significantly to regional pollution dynamics. Bhankarpur sits within a zone heavily impacted by agricultural burning, a common practice after harvest seasons to clear fields quickly, releasing substantial particulate matter into the atmosphere. The city’s proximity to larger industrial belts in Ludhiana and Jalandhar, though not immediately adjacent, means it’s susceptible to the downwind transport of industrial pollutants. The urban–rural gradient around Bhankarpur is gradual, with smaller villages and agricultural land transitioning into the city’s periphery. This blending of rural and urban activities intensifies the air quality challenges. The absence of significant natural barriers, such as hills or mountains, allows pollutants to accumulate, particularly during periods of stagnant air. While the Ghaggar River flows nearby, its influence on local air quality is limited due to the scale of other pollution sources. The flat topography and prevailing wind patterns often trap pollutants, exacerbating the impact of agricultural practices and regional industrial emissions, creating a complex interplay of factors affecting Bhankarpur’s air quality.

Bhankarpur’s air quality follows a distinct seasonal pattern heavily influenced by meteorological conditions and agricultural practices. The dry winter months (October to February) are consistently the most challenging. Cold temperatures frequently lead to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing pollutants from dispersing vertically. This, coupled with the prevalence of dense fog, further restricts visibility and concentrates particulate matter. Agricultural burning reaches its peak during this period, dramatically increasing PM2.5 and PM10 levels. January and November are typically the months to avoid for outdoor activities, especially for vulnerable populations. The monsoon season (July to September) brings a temporary respite, with increased rainfall washing away some pollutants and stronger winds aiding dispersion. However, monsoon winds can also carry moisture and humidity, potentially aggravating respiratory conditions. The pre-monsoon period (March to June) sees a gradual increase in temperatures and a decrease in rainfall, leading to a slow deterioration in air quality as agricultural activity resumes. Dust storms originating from the Thar Desert can also impact Bhankarpur during this time. Sensitive groups, including children, the elderly, and individuals with pre-existing respiratory illnesses, should limit prolonged outdoor exposure during the winter months and be mindful of dust storm warnings in the pre-monsoon season. Maintaining indoor air quality through filtration and ventilation is crucial throughout the year, but particularly during periods of elevated pollution.