KOLKATA: Although the minimum temperature dropped by a degree in Kolkata on Thursday, the air quality index (AQI) worsened at most monitoring stations. Parts of the city were covered by smog, which could be the result of a spurt in pollution levels, said experts. With the mercury set to remain low for the next 48 hours, conditions may not change for the better, they said. Kolkata recorded a minimum temperature of 12.7°C on Thursday.
Most automated air quality monitoring stations in the city revealed that the air quality was poor, while a station at the Rabindra Bharati University campus recorded very poor air along with another station in Howrah.
