“Air quality remained ‘poor’ in Kolkata and its neighbourhood on Monday morning (November 13), a day after Kali puja and Deepavali, as a haze engulfed the metropolis,” officials said.
“Such a situation was not only caused by the bursting of firecrackers on Deepavali day (November 12), but also due to weather conditions during this time of the year when small particulate matters remain in the air with the presence of fog and smoke,” they said.