Lāthi Air Quality Index (AQI)

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Lāthi, a small town nestled in the Amreli district of Gujarat, India (21.4500° N, 71.3800° E), occupies a geographically significant position within the Saurashtra peninsula. The town’s terrain is predominantly flat, characteristic of the Gujarat plains, with gentle undulations marking the landscape. Situated approximately 20 kilometers inland from the Arabian Sea, Lāthi benefits from a relatively mild coastal influence, though sea breezes do occasionally impact local weather patterns. The surrounding landscape is largely agrarian, dominated by cotton fields, castor bean farms, and other rain-fed crops, contributing to seasonal agricultural emissions. To the east, the landscape gradually rises towards the foothills of the Barda Hills, a range that can influence wind patterns and, occasionally, trap pollutants. The urban–rural gradient around Lāthi is relatively sharp; the town itself is compact, transitioning quickly into the surrounding agricultural lands. While Lāthi isn't directly adjacent to major industrial belts, it lies within a region experiencing increasing industrial development, particularly in the processing of agricultural products and textiles. This regional growth, coupled with the town’s reliance on older vehicle fleets and traditional cooking methods, contributes to localized air quality challenges. The flat topography and limited natural ventilation exacerbate the potential for pollutant accumulation, especially during periods of stagnant air. The proximity to the coast also means that dust storms originating from the Rann of Kutch can occasionally impact air quality, carrying fine particulate matter inland.

Lāthi’s air quality exhibits a distinct seasonal cycle heavily influenced by the monsoon and prevailing weather systems. The dry season, spanning roughly October to May, typically sees the poorest air quality. During these months, lower humidity and increased temperatures promote the formation of temperature inversions, trapping pollutants close to the ground. Agricultural burning, a common practice for clearing fields after harvest, significantly contributes to particulate matter pollution during November and December. Dust storms, particularly in March and April, further degrade air quality, bringing in fine particles from the surrounding arid regions. The monsoon season, from June to September, brings a welcome respite. The increased rainfall effectively washes pollutants from the atmosphere, and the stronger winds disperse any remaining emissions. However, the onset of the monsoon can be accompanied by periods of heavy fog, which, while reducing visibility, can also temporarily trap pollutants. January and February are often the most challenging months for outdoor activity, with persistent fog and agricultural burning combining to create periods of reduced air quality. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit prolonged outdoor exposure during these periods. During the monsoon months, while overall air quality improves, heavy rainfall can lead to localized flooding and the release of mould spores, potentially affecting indoor air quality. Maintaining good ventilation and avoiding damp areas is advisable during this time. The transition months of September and October see a gradual deterioration in air quality as the monsoon recedes and agricultural burning begins.