Survey reveals no nation on the planet met WHO air quality standards during 2021

A survey of air pollution information in 6,475 cities exhibits that not a single country met the World Health Organisation’s air high quality requirements in 2021. According to a Reuters report, smog even returned to pre-pandemic levels in some regions, after a quick respite throughout Covid-19. The knowledge was collated by Swiss agency, IQAir, a air pollution know-how company that screens air quality.
The WHO suggestion is that common annual PM2.5 readings mustn’t exceed 5 micrograms per cubic metre. PM2.5 refers to particulate matter found within the air, corresponding to mud, soot, dust, liquid droplets, and smoke. The WHO pointers changed last 12 months, with the organisation saying even low ranges can create serious health dangers.
According to Dark from IQAir, many international locations are making vital progress but as many as ninety three cities had PM2.5 ranges that were 10 occasions the beneficial level.
“There are plenty of nations which would possibly be making massive strides in reduction. China began with some very massive numbers and they’re persevering with to decrease over time. But there are also locations on the earth the place it is getting significantly worse.”

The knowledge reveals that total pollution in India got worse in 2021, with New Delhi retaining the doubtful honour of being the world’s most polluted capital city. Bangladesh is the world’s most polluted nation for the second 12 months, with Chad in second place, after its data was included within the survey for the primary time.
According to the Reuters report, China has been making an attempt to combat its air pollution downside since 2014. In 2020, it was ranked 14th within the PM2.5 rankings however dropped to twenty second in 2021. The worst performing Chinese metropolis is the north-western metropolis of Hotan, in Xinjiang. There, the typical PM2.5 readings came in at over one hundred micrograms, primarily as a outcome of sandstorms. However, Hotan has fallen to third place in the world’s most polluted cities rating, with the Indian cities of Bhiwadi and Ghaziabad overtaking it in 2021.
SOURCE: Reuters

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