134
S. Roy and A. Chatterjee
Fig. 5.15 Increasing trend of newly affected cases per day in COVID-19 in India
and the pollution amount got reduced. AQI value decreased significantly which can
be visualised using Fig. 5.16.
Due to lockdown, the amount vehicles, industries operating were reduced and thus
pollutant amount also dropped significantly and the concentration amount is very less
than the same time of last year which can be visualised. During early lockdown, AQI
Fig. 5.16 Representing AQI during the lockdown in Kolkata
S. Roy and A. Chatterjee
Fig. 5.15 Increasing trend of newly affected cases per day in COVID-19 in India
and the pollution amount got reduced. AQI value decreased significantly which can
be visualised using Fig. 5.16.
Due to lockdown, the amount vehicles, industries operating were reduced and thus
pollutant amount also dropped significantly and the concentration amount is very less
than the same time of last year which can be visualised. During early lockdown, AQI
Fig. 5.16 Representing AQI during the lockdown in Kolkata