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Gobindgarh, officially known as Mandi Gobindgarh, occupies a pivotal position in the northern Indian state of Punjab. Located at 30.6709°N, 76.3019°E, the city sits within the Indo-Gangetic Plain, a vast and fertile expanse. The terrain is largely flat, typical of this region, with a gentle slope towards the south-east. This flatness contributes to the potential for stagnant air masses, exacerbating pollution. Gobindgarh’s elevation is relatively low, around 260 meters, further reducing atmospheric dispersion. The city is not directly adjacent to a major body of water, though the Sirhind Canal flows nearby, providing irrigation but not significantly influencing local wind patterns. However, its location within Punjab’s industrial belt – a major hub for steel rerolling and cycle parts manufacturing – is a critical factor. This concentration of industry generates substantial particulate matter and gaseous pollutants. The surrounding landscape is predominantly agricultural, with intensive farming practices contributing to seasonal biomass burning. The urban-rural gradient is relatively sharp, with agricultural land immediately bordering the city limits. This proximity means pollutants from agricultural waste are readily transported into the urban area, impacting air quality, particularly during post-harvest seasons. The city’s growth, driven by industry, has led to increased vehicular traffic, adding to the pollution burden.

Gobindgarh experiences a distinct seasonal air quality pattern dictated by the monsoon and post-monsoon periods. Summer (April-June) brings hot, dry winds that can initially disperse pollutants, but rising temperatures also increase ozone formation. However, dust storms originating from the west can significantly degrade air quality during this time. The monsoon season (July-September) offers temporary relief, as rainfall washes away pollutants and increased humidity suppresses dust. However, stagnant conditions can develop between monsoon systems, leading to localised pollution build-up. The post-monsoon period (October-November) is the most critical. Cooler temperatures create temperature inversions, trapping pollutants near the ground, combined with widespread agricultural stubble burning across Punjab. This period consistently sees the poorest air quality. Winter (December-February) is characterised by cold, calm conditions and frequent fog, further exacerbating pollution. Reduced sunlight hinders pollutant dispersion. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during October-February. March and April, before the peak summer heat, generally offer the most favourable conditions. Avoiding peak traffic hours and using respiratory protection during high-pollution periods are crucial health measures.