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Elamāttūr, nestled in the Palakkad district of Kerala, India, occupies a geographically significant position within the Western Ghats foothills. Its coordinates (9.4167° N, 76.7000° E) place it in a region characterized by undulating terrain, transitioning from the relatively flat plains of Kerala to the steeper slopes of the mountains. The surrounding landscape is predominantly rural, a patchwork of coconut groves, paddy fields, and small-scale agricultural holdings, typical of Kerala’s agrarian economy. The city’s elevation, while not exceptionally high, contributes to localized microclimates and influences air circulation patterns. The proximity to the Siruvani River, a vital water source for Coimbatore and surrounding areas, plays a crucial role in the local ecosystem and, to a lesser extent, in moderating humidity levels. While Elamāttūr itself lacks significant heavy industry, it sits within a broader region experiencing increasing development pressure. Coimbatore, a major industrial hub, lies approximately 60 kilometers to the north, and its industrial emissions can occasionally be transported southward, impacting air quality. The urban–rural gradient is gradual, with Elamāttūr exhibiting characteristics of both – a small town with a growing population and increasing vehicular traffic, surrounded by a predominantly agricultural landscape. The prevailing winds, generally southwesterly during the monsoon and northwesterly during the dry season, dictate the dispersal of pollutants, with the Ghats acting as a barrier, potentially trapping pollutants under certain meteorological conditions. This interplay of terrain, agriculture, and proximity to industrial zones shapes Elamāttūr’s unique environmental profile.

Elamāttūr’s tropical climate dictates a distinct wet and dry season cycle, profoundly influencing its air quality. The southwest monsoon, typically spanning June to September, brings abundant rainfall, effectively cleansing the atmosphere and significantly reducing particulate matter. High rainfall rates and frequent wind shifts associated with the monsoon actively scrub pollutants, leading to generally improved air quality during these months. However, periods of intense rainfall can also lead to localized flooding, potentially releasing pollutants from inundated areas. The dry season, from October to May, presents a contrasting scenario. Reduced rainfall, coupled with calmer wind conditions, can lead to a build-up of pollutants, particularly during the cooler months of December and January. Temperature inversions, where cooler air is trapped beneath a layer of warmer air, are more frequent during this period, hindering vertical mixing and exacerbating ground-level pollution. Fog, common in the mornings during the dry season, further restricts dispersion. Agricultural burning, a common practice in surrounding areas to clear fields after harvest, contributes significantly to particulate matter during the transition months (October-November and March-April). Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during these periods, limiting outdoor exertion and monitoring for any adverse health effects. The months of February and March, coinciding with peak agricultural activity, often see a noticeable increase in localized smoke and haze. Overall, the monsoon months offer the most favourable conditions for air quality, while the dry season requires heightened awareness and preventative measures.