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WHO’s new Air Quality Norms
September 25 , 2021
1152 days
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- The World Health Organization set the new standards in the first update of its air quality guidelines since 2005.
- PM 2.5 norms for 24 hours average has been changed to 15 micro-g/m3 against 25 micro-g/m3 in 2005.
- While the PM 2.5 norms for annual average has been changed to 5 micro-g/m3 against the 10 micro-g/m3 in 2005.
- The revised guidelines for air quality released by the World Health Organisation means that nearly entire India will be considered a polluted Zone for most of the year.
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