WHO Releases Global Air Quality Guidelines

On 22nd September, 2021, the World Health Organization (WHO) released new air quality guidelines - Global Air Quality Guidelines (AQGs). Redefining the threshold of safe air, this is the first revision after the last updation in 2005.

The New Guidelines

  • An annual mean concentration guideline for particulate matter and other pollutants, the Global Air Quality Guidelines (AQGs) recommend new air quality levels to protect the health of populations by reducing levels of key air pollutants.
  • Pollutants Covered:The guidelines cover six pollutants - particulate matter 2.5 (PM2.5), PM 10, ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2) and carbon monoxide (CO).
  • WHO has, ....
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Ecology & Environment