Loading air quality context...

Bihpuriāgaon, nestled in the Nagaon district of Assam, India, occupies a relatively flat terrain at an elevation of approximately 58 meters (190 feet). Its coordinates (27.0172°N, 93.9167°E) place it within the fertile Brahmaputra Valley, a region dominated by alluvial plains formed by the river’s extensive network of tributaries. The surrounding landscape is primarily agricultural, characterized by paddy fields and tea gardens, interspersed with patches of deciduous forests. The proximity to the Kolong River, a major tributary of the Brahmaputra, influences local humidity and contributes to the region’s generally warm and humid climate. While Bihpuriāgaon itself is a small urban centre with a population of around 14,345, it functions as a service hub for the surrounding rural areas. The urban-rural gradient is quite sharp, with agricultural activities dominating the immediate periphery. Industrial activity is limited, though brick kilns and small-scale rice mills contribute to localised emissions. The Brahmaputra Valley’s geography, while conducive to agriculture, also creates conditions that can trap pollutants during periods of calm weather, particularly during winter months when temperature inversions are common. The open agricultural land, while providing some dispersion, can also be a source of dust and biomass burning emissions during crop residue clearing.

Bihpuriāgaon’s air quality follows a distinct seasonal pattern heavily influenced by the monsoon climate. The monsoon season, typically from June to September, generally brings cleaner air due to rainfall washing away particulate matter and suppressing dust. However, increased humidity can also foster mould growth, potentially impacting respiratory health. October and November see a gradual deterioration in air quality as the monsoon recedes and agricultural burning increases following the harvest. This period often experiences stagnant air conditions, trapping smoke and pollutants. Winter, from December to February, is usually the worst period for air quality. Cooler temperatures lead to temperature inversions, where a layer of warm air traps cooler, polluted air near the ground. Biomass burning for warmth and cooking exacerbates the problem. March and April bring a slight improvement as temperatures rise and winds pick up, but dust from pre-monsoon activities can still be significant. May is a transitional month. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the winter and post-monsoon periods. Monitoring local weather patterns and avoiding peak burning times are crucial for protecting health. The monsoon offers the most favourable conditions for outdoor activities.