India, Dec. 24 -- NOIDA/GHAZIABAD The air quality across Noida, Greater Noida, and Ghaziabad deteriorated sharply on Tuesday, with Noida emerging as the most polluted city in the country yet again, showed official statistics.

According to the Central Pollution Control Board (CPCB) data recorded at 4pm, Noida's Air Quality Index (AQI) stood at 426, falling in the "severe" category. Greater Noida, and the neighbouring district of Ghaziabad also reported "very poor" air quality with an AQI of 388, and 392 respectively.

Data from the air quality dashboard showed that pollution levels in the region have remained consistently high over the past several days, driven largely by elevated concentrations of particulate matter - PM2.5 and PM10.

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