Lahore in Pakistan jumped more than 10 places to become the city with the worst air in the world in 2022, according to an annual global survey by a Swiss maker of air purifiers.
The World Health Organization recommends a maximum PM2.5 concentration of 5 micrograms per cubic meter.
Pakistan, which had two of the five cities with the worst air in 2022, stood third in the country-wide ranking at 70.9, followed by Bahrain at 66.6. India has has some of the most polluted cities in the world, but ranked eighth in the latest report, with PM2.5 levels at 53.3. It said one in 10 people globally were living in an area where air pollution poses a threat to health.
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