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Bhiloda, a municipality in the Sabarkantha district of Gujarat, India, occupies a unique geographic position within the state. Located at 23.4600°N latitude and 73.1500°E longitude, the town sits nestled in the foothills of the Aravalli Range, a significant geological feature influencing local climate and air circulation. The terrain is characterised by undulating hills and valleys, transitioning into the plains towards the south. Bhiloda’s elevation, approximately 180 meters above sea level, contributes to localized temperature variations. The surrounding landscape is predominantly agricultural, with significant cultivation of cotton, wheat, and other crops. While not directly adjacent to a major river, the town benefits from seasonal streams and groundwater resources originating in the Aravallis. The urban-rural gradient is pronounced; Bhiloda serves as a market town for the surrounding agricultural villages. This reliance on agriculture introduces potential sources of air pollution from agricultural practices like stubble burning and fertilizer use. Furthermore, the town’s position within a valley can trap pollutants, particularly during periods of low wind speed and temperature inversion. The lack of heavy industry within Bhiloda itself doesn’t preclude the influence of regional industrial emissions transported by prevailing winds. Understanding these geographical factors is crucial for assessing and mitigating air quality challenges.

Bhiloda experiences a distinct seasonal air quality pattern dictated by the monsoon and post-monsoon periods. The summer months (March to May) see rising temperatures and dry conditions, leading to increased dust and particulate matter in the air, exacerbated by agricultural activities preparing for the monsoon. Wind speeds are generally low, contributing to pollutant accumulation. The arrival of the monsoon (June to September) brings a temporary respite, with rainfall effectively washing away airborne particles and improving air quality. However, increased humidity can also foster mold growth, impacting respiratory health. Post-monsoon (October to November) is often the most challenging period. Stubble burning from harvested crops becomes widespread, releasing significant amounts of smoke and pollutants. Cooler temperatures and calm winds create temperature inversions, trapping pollutants near the ground. December to February brings cooler, drier air, with relatively better air quality compared to the post-monsoon season, though dust from construction and road traffic remains a concern. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the post-monsoon season and periods of high dust. Monitoring local weather patterns and agricultural practices is key to anticipating pollution spikes.