Kolkata, Oct 24 (PTI) Kolkata's air quality remained in the 'moderate' category on Friday, with the overall average Air Quality Index (AQI) recorded at 155 (PM 2.5), a West Bengal Pollution Control Board (WBPCB) official said.

An AQI of 101 to 200 is termed 'moderate and from 201 to 300 as 'poor' - both causing breathing problems and discomfort.

The AQI was 154 (PM 2.5) at Rabindra Bharati University in Sinthi area on Friday afternoon, while it was recorded as 184 at Ballygunje and 186 at Bidhannagar during the same time, the WBPCB official said.

At Jadavpur, the AQI was 177, while it was 161 at Victoria Memorial and 156 at Fort William during afternoon hours.

In the Rabindra Sarobar area, it was 144.

Across the river Bhagirathi, on the opposite side of Kolkata, the AQI at Shibpur Bot

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