Revūr Air Quality Index (AQI)

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Revūr, a small town in the Krishna district of Andhra Pradesh, India, occupies a relatively flat, low-lying area within the fertile Krishna River delta. Situated at coordinates 16.8216°N, 79.9926°E, its elevation is minimal, contributing to limited atmospheric dispersion of pollutants. The town is intrinsically linked to the Krishna River, which provides irrigation for the surrounding agricultural lands – primarily paddy cultivation – and influences local humidity levels. Revūr’s urban character is typical of a regional service centre, supporting the agricultural hinterland. While not heavily industrialised itself, its proximity to larger industrial zones further inland, particularly around Vijayawada, means it can experience pollutant transport. The surrounding landscape is dominated by intensely farmed fields, interspersed with small villages. The urban-rural gradient is sharp, with a rapid transition from densely populated areas to agricultural fields. This proximity to agricultural activity introduces potential sources of particulate matter from crop residue burning and fertilizer application. The deltaic location also means the area is susceptible to localised flooding, which can exacerbate air quality issues by mobilising dust and pollutants. The flat terrain and limited natural barriers hinder the flushing of pollutants by prevailing winds.

Revūr experiences a tropical climate with distinct wet and dry seasons, profoundly impacting air quality. The post-monsoon period (October-November) often sees a temporary improvement as rainfall washes away accumulated pollutants. However, this is short-lived. The dry season (December-May) brings consistently poorer air quality. Lower humidity and stagnant air masses allow pollutants to concentrate, particularly from agricultural practices like crop residue burning after the harvest. January and February are typically the worst months. The summer months (March-May) see increased temperatures leading to photochemical smog formation, exacerbating ozone levels. The southwest monsoon (June-September) offers significant relief, with heavy rainfall effectively cleansing the atmosphere. However, increased humidity can also promote the formation of secondary pollutants. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during the dry season, especially in the afternoons. During the monsoon, while air is cleaner, the risk of waterborne diseases increases, requiring caution. Monitoring wind patterns is crucial; winds from the northwest often carry pollutants from industrial areas, worsening conditions.