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Wednesday, December 08, 2021

National air quality index

NATIONAL AIR QUALITY INDEX NEWS

Air quality: New WHO norms, now almost entire India polluted

September 23, 2021 10:24 am

While a PM2.5 concentration of 25 micrograms per cubic metre in a 24-hour period was considered safe earlier, the WHO has now said that a concentration of over 15 micrograms is not safe.

Now, colour-coded air alerts

April 07, 2015 5:30 pm

PM launches national air quality index; Javadekar assures new construction norms in 15 days.

Tracking air

April 07, 2015 8:17 am

Launch of a national air quality index is a good first step. Better data alone is not enough.

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