Ammūr Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

Ammūr, a small town in Tamil Nadu, India, rests at coordinates 12.9750°N, 79.3628°E, within the fertile Kaveri Delta region. Its relatively low elevation, typical of the coastal plains, contributes to limited atmospheric dispersion of pollutants. The surrounding landscape is predominantly agricultural, characterized by extensive rice paddies and coconut groves, interspersed with pockets of rural settlements. Ammūr’s proximity to the Bay of Bengal introduces high humidity and influences local wind patterns. While not directly on the coast, the coastal influence is significant. The town is situated within a broader industrial corridor developing along major transportation routes connecting Chennai and other industrial hubs, introducing potential sources of particulate matter and gaseous pollutants. The urban-rural gradient is quite sharp; Ammūr itself is a relatively small urban centre, quickly transitioning to agricultural land. This proximity to agricultural practices introduces seasonal burning of crop residue, a significant localised pollution source. The flat terrain hinders natural ventilation, exacerbating pollution build-up, particularly during calm weather conditions. Understanding this geographical context is crucial for assessing and mitigating air quality challenges in Ammūr.

Ammūr experiences a tropical climate, with air quality largely dictated by the monsoon and dry seasons. The northeast monsoon, arriving in October and lasting through December, initially offers some respite through rainfall, washing away particulate matter. However, increased humidity can trap pollutants near the ground. January to March marks the driest period, witnessing a peak in dust and particulate matter due to agricultural activities and construction. Strong winds, though present, are often insufficient to fully disperse pollutants given the flat terrain. April and May are the hottest months, leading to increased ground-level ozone formation, exacerbated by vehicle emissions. The southwest monsoon, from June to September, brings heavy rainfall and generally improves air quality, though localised flooding can contribute to microbial pollutants. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the dry season (January-March) and peak heat (April-May). Fog during cooler months can also trap pollutants. November and December, post-monsoon, offer the most favourable conditions for outdoor activity, but vigilance is still advised. Monitoring wind direction during seasonal shifts is vital for predicting pollutant transport.