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Shujaabad, nestled within the fertile plains of Punjab, Pakistan, occupies a geographically significant position at 29.8792°N, 71.3028°E. The city’s terrain is largely flat, characteristic of the broader Indus Plain, with a gentle slope towards the south. This flatness contributes to limited natural air dispersion. Shujaabad’s population of approximately 70,595 reflects its status as a medium-sized urban centre within a predominantly agricultural region. The surrounding landscape is dominated by intensively farmed lands, primarily cotton, wheat, and sugarcane. The Sutlej River lies to the south, though its distance mitigates direct influence on local humidity but doesn’t significantly impact pollutant dispersal. The urban-rural gradient is relatively sharp, with agricultural activity immediately bordering the city limits. This proximity introduces seasonal agricultural burning as a key pollution source. While Shujaabad isn’t a major industrial hub itself, its location within Punjab places it downwind of larger industrial areas to the northeast, potentially receiving transported pollutants. Dust from agricultural practices and unpaved roads further exacerbates particulate matter concentrations. The lack of substantial topographical features hinders the flushing of pollutants, creating conditions conducive to air stagnation, particularly during winter months. This combination of factors makes Shujaabad particularly vulnerable to air quality challenges.

Shujaabad experiences a distinct seasonal air quality pattern. The winter months (November to February) are typically the worst, marked by temperature inversions that trap pollutants near the ground. Calm winds and frequent fog exacerbate this, leading to high concentrations of particulate matter from residential heating using biomass and agricultural waste. March and April see a slight improvement as temperatures rise, but agricultural burning for land preparation contributes to spikes in pollution. The pre-monsoon season (May-June) brings hotter, drier conditions and increased dust storms, elevating particulate matter levels. The monsoon season (July-September) offers a temporary respite, with rainfall washing away pollutants and stronger winds dispersing them. However, increased humidity can also promote secondary pollutant formation. October witnesses a gradual deterioration as the monsoon retreats and winter conditions begin to set in. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the winter and periods of high dust. Avoiding peak hours near agricultural areas during burning seasons is also advisable. Monitoring local conditions and heeding health advisories is crucial for protecting respiratory health throughout the year.