Tekkali Air Quality Index (AQI)

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Tekkali, nestled in the Srikakulam district of Andhra Pradesh, India, occupies a geographically significant position within the Eastern Ghats. Located at approximately 18.6057° N latitude and 84.2355° E longitude, the town sits at an elevation of roughly 450 meters above sea level, contributing to a relatively cool climate compared to coastal Andhra Pradesh. The surrounding landscape is characterized by undulating hills and dense forests, primarily comprising tropical dry deciduous vegetation. This proximity to forested areas, while offering natural carbon sinks, also presents a risk of biomass burning during drier periods, impacting air quality. Tekkali’s location is strategically important as it lies on the border with Odisha, influencing regional transportation patterns and potential pollutant transport. The urban fabric of Tekkali is a blend of traditional settlements and newer developments, reflecting its growth as a local commercial hub. The town’s rural-urban gradient is relatively sharp, with agricultural lands dominating the immediate periphery, primarily cultivating rice and other crops. This agricultural activity, coupled with potential fertilizer use, can contribute to localized ammonia emissions. Further afield, the Eastern Ghats act as a barrier, influencing wind patterns and potentially trapping pollutants within the region. The lack of major industrial belts directly adjacent to Tekkali mitigates some industrial pollution risks, but transportation corridors connecting it to larger urban centers can introduce external pollutants. The terrain, with its hills and valleys, can also create microclimates affecting local air circulation and pollutant dispersion.

Tekkali’s air quality experiences a distinct seasonal cycle dictated by the region’s tropical climate and monsoon patterns. The dry season, typically spanning from March to May, is often characterized by elevated particulate matter concentrations. Reduced rainfall and increased temperatures lead to drier vegetation, increasing the risk of wildfires and agricultural burning, both significant contributors to PM2.5 and PM10. Temperature inversions, common during these months, trap pollutants near the ground, exacerbating the problem. The monsoon season, from June to September, brings relief with increased rainfall, effectively washing away pollutants and significantly improving air quality. However, heavy rainfall can also lead to waterlogging and the release of methane from decomposing organic matter. The post-monsoon period (October-November) sees a gradual return to drier conditions, with a slow increase in particulate matter. Fog, frequently occurring during these months, further reduces visibility and traps pollutants close to the ground. December and January represent the coolest months, with relatively stable air quality, although occasional biomass burning can still impact local conditions. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, limiting outdoor activities during peak pollution periods. Agricultural workers should be particularly mindful of potential exposure to pesticides and fertilizers. Maintaining indoor air quality through ventilation and air purifiers is advisable during periods of elevated pollution.