Bilaspur Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Bilaspur, Himachal Pradesh, nestled in the foothills of the Himalayas at approximately 31.33°N, 76.75°E and an elevation of around 1,300 meters (4,265 feet), presents a unique geographic profile influencing its air quality. The city’s location within the Sirmour district places it at the edge of a significant urban–rural gradient, transitioning from the burgeoning town to agricultural plains and ultimately, the steep, forested slopes of the Shivalik range. This terrain significantly impacts air circulation; the surrounding hills can trap pollutants, particularly during periods of low wind speed. Bilaspur sits near the Yamuna River, though its direct influence on local air quality is limited, the river’s presence contributes to regional humidity and potential for fog formation, which can exacerbate pollution. The region’s agricultural practices, including seasonal burning of crop residue, contribute to particulate matter, especially during the post-harvest season. While Bilaspur itself isn't a major industrial hub, its proximity to industrial belts in neighboring states, particularly Haryana and Punjab, means it can be affected by transboundary pollution. The surrounding landscape is predominantly rural, characterized by terraced fields and small villages, with pockets of dense deciduous and coniferous forests higher up the slopes. This combination of topography, agricultural activity, and regional industrial influences creates a complex interplay affecting Bilaspur’s air quality profile.

Bilaspur’s air quality exhibits a distinct seasonal pattern dictated by the interplay of meteorological factors and regional pollution sources. The winter months (November to February) typically see the poorest air quality. Cold temperatures lead to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing pollutants from dispersing. Frequent fog, a common occurrence due to the region’s humidity and cold temperatures, further restricts visibility and concentrates pollutants. Agricultural burning in the surrounding plains intensifies during this period, adding to the particulate load. Spring (March to May) brings a gradual improvement as temperatures rise and winds increase, aiding in pollutant dispersion. The monsoon season (June to September) offers a period of relative respite, with rainfall washing away pollutants and strong winds clearing the air. However, heavy rainfall can also lead to increased humidity and localized flooding, potentially impacting air quality. The post-monsoon period (October) can see a brief return to poorer air quality as winds calm and agricultural burning resumes. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the winter months, limiting outdoor activity during foggy or stagnant air conditions. During the monsoon, while generally cleaner, be mindful of potential mold and dampness issues indoors. Throughout the year, maintaining indoor air quality through ventilation and air purification can be beneficial.