World
March 22, 2022
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These were the best and worst places for air quality in 2021, new report shows

CNN  —  Air pollution spiked to unhealthy levels around the world in 2021, according to a new report. The report by IQAir, a company that tracks global air quality, found that average annual air pollution in every country — and 97% of cities — exceeded the World Health Organization’s air quality guidelines, which were designed […]