TNPSC Thervupettagam

Air Quality Database 2022

April 8 , 2022 835 days 633 0
  • Ahead of World Health Day (7th April), the World Health Organisation (WHO) has released Air Quality Database 2022.
  • It shows that Almost the entire global population (99 %) breathes air that exceeds WHO’s air quality limits.
  • The WHO for the first time has taken ground measurements of annual mean concentrations of nitrogen dioxide (NO2).
  • It also includes measurements of Particulate Matter with diameters equal to or smaller than 10 μm (PM10) or 2.5 μm (PM2.5).
  • According to the report “Air quality is poorest in the Eastern Mediterranean and Southeast Asia regions, followed by Africa”.
  • The highest concentrations of Nitrogen dioxide were found in the eastern Mediterranean region.
  • In low and middle-income countries, air quality in less than 1% of the cities complies with WHO recommended thresholds.

Leave a Reply

Your Comment is awaiting moderation.

Your email address will not be published. Required fields are marked *

Categories