Delhi breathes clean air again as pollution levels come down amid COVID-19 lockdown
The average Particulate Matter 2.5 (PM2.5) in May 2021 was recorded at around at 55-56 ug/m3 in Delhi during the lockdown period.
from Zee News :India National https://ift.tt/34HE3O6
from Zee News :India National https://ift.tt/34HE3O6
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