NO2 levels fell by more than 70% during COVID-19 lockdown in New Delhi
Nitrogen dioxide (NO2) levels has fell down by more than 70% during the lockdown in New Delhi. According to a study report the environmental gains could be temporary if the cities re-open without policies to prevent air pollution and promote de-carbonisation. Daily Current Affairs Quiz 2020 Key-Points With an estimated 90 per cent of all […]
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