News

New WHO AQ Guidelines published


22/09/2021

New WHO AQ Guidelines published.

See https://www.who.int/news/item/22-09-2021-new-who-global-air-quality-guidelines-aim-to-save-millions-of-lives-from-air-pollution

New WHO Air Quality Guideline levels (and interim targets, see link for details):

  • PM2.5 reduced from 10 to 5 µg/m3
  • PM10 reduced from 20 to 15 µg/m3
  • NO2 reduced from 40 to 10 µg/m3