TNPSC Thervupettagam

5th Annual World Air Quality Report 2022

March 26 , 2023 455 days 509 0
  • The 5th Annual World Air Quality Report was released by IQAir.
  • It states that roughly 60% of cities in India included in the report recorded annual PM2.5 levels at least seven times higher than the WHO guidelines.
  • The average PM2.5 level in 2022 was 53.3 pg/m3.
  • It is only slightly lower than 58.1 pg/m3 in 2021.
  • Bhiwadi in Rajasthan was the most polluted city in the country with PM levels of 92.7.
  • Delhi is the most polluted metropolitan city with PM levels of 92.6.
  • India has ranked eighth in the list of countries with the worst air quality index.
  • It is dropped from the fifth spot the previous year.
  • Lahore in Pakistan jumped more than 10 places to become the city with the worst air in the world in 2022.
  • 12 of the 15 most polluted cities in Central and South Asia are in India.
  • The PM2.5 levels in Bengaluru went up from 29 to 31.5 micrograms/cubic metre.
  • In Hyderabad the increase was from 39.4 to 42.4 micrograms/cubic metre.
  • Delhi, Mumbai and Chennai saw a marginal drop in the level of pollutants by a few micrograms.
  • Kolkata remained the same.
  • The US Pacific territory Guam had cleaner air than any country, with a PM2.5 concentration of 1.3.
  • Canberra of Australia had the cleanest air for a capital city, with 2.8.

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