There are more factors than people not driving during those times:
> The phenomenon is made possible by a dramatic improvement in air quality in recent weeks, after industries shut down, cars came off the road and airlines canceled flights in response to the coronavirus pandemic.
> Delhi saw up to a 44% reduction in PM10 air pollution levels on the first day of its restrictions, India’s Central Pollution Control Board found. The PM10 standard measures airborne particulates 10 micrometers or smaller in diameter.
> The phenomenon is made possible by a dramatic improvement in air quality in recent weeks, after industries shut down, cars came off the road and airlines canceled flights in response to the coronavirus pandemic.
> Delhi saw up to a 44% reduction in PM10 air pollution levels on the first day of its restrictions, India’s Central Pollution Control Board found. The PM10 standard measures airborne particulates 10 micrometers or smaller in diameter.
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