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Rādhanpur, nestled in the Patan district of Gujarat, India, occupies a relatively flat terrain characteristic of the broader Gujarat plains. Located at 23.8300°N, 71.6000°E, the city’s geography is dominated by arid and semi-arid landscapes, typical of the region. The surrounding area is primarily agricultural, with significant cultivation of cotton, cumin, and other crops, contributing to seasonal dust emissions. Rādhanpur isn’t directly adjacent to major bodies of water, though the Sabarmati River flows some distance to the south, influencing regional humidity patterns. The urban-rural gradient is quite sharp; Rādhanpur itself is a relatively small urban centre surrounded by extensive rural agricultural lands and sparsely populated areas. While not a major industrial hub, the presence of small-scale industries, including textile processing and agricultural processing units, contributes to localised pollution sources. The city’s position within Gujarat makes it susceptible to dust storms originating in the Thar Desert to the north and northwest, particularly during pre-monsoon months. This geographical setting, combined with agricultural practices and limited industrial regulation, creates a unique set of challenges for maintaining good air quality. The flat terrain also limits natural dispersion of pollutants, exacerbating localised air quality issues.

Rādhanpur experiences a distinct seasonal air quality pattern. The post-monsoon and winter months (October to February) often see the poorest air quality. Cooler temperatures lead to temperature inversions, trapping pollutants near the ground, and reduced wind speeds hinder dispersion. Dust from agricultural activities, combined with emissions from biomass burning for heating, contribute significantly. March and April bring the pre-monsoon season, characterised by increased dust storms originating from the Thar Desert, dramatically worsening particulate matter levels. May and June offer a brief respite as pre-monsoon showers temporarily suppress dust, but this is short-lived. The monsoon season (July to September) generally provides the cleanest air, as rainfall washes away pollutants and increased humidity reduces dust suspension. However, increased cloud cover can also contribute to localised pollution build-up. Sensitive groups – children, the elderly, and those with respiratory conditions – should avoid prolonged outdoor activity during October-February and March-April. During the monsoon, while air is cleaner, increased humidity can exacerbate respiratory issues for some. Monitoring local weather patterns and avoiding peak pollution times is crucial for protecting health.