The air quality index (AQI) in Maharashtra's Nagpur district has fluctuated between 'moderate' to 'poor' due to various factors since mid-October, a senior official from the Maharashtra Pollution Control Board (MPCB) said on Tuesday, according to the PTI.

Nagpur city in Maharashtra on Tuesday recorded an overall average AQI of 188, which falls in the moderate category, he said, as per the PTI.