Only 13 of the world’s countries and territories had “healthy” air quality last year, according to a new report, as air pollution surged to alarming levels in 2022.
The report by IQAir, a company that tracks air quality worldwide, found that average annual air pollution in roughly 90% of the countries and territories analyzed exceeded the World Health Organization’s air quality guidelines, which are designed to help governments craft regulations to protect public health.
WHO tightened its annual air pollution guidelines in September 2021, cutting the acceptable amount of fine particulate matter from 10 to 5 micrograms per cubic meter. Glory Dolphin Hammes, CEO of IQAir North America, said that each time it adds a new country that once lacked air quality data – as it did with Chad in 2021 – those countries inevitably wind up at the top of the most-polluted list.
Coffeyville, Kansas, had the worst air quality in the US last year, which IQAir attributed to a nearby oil refinery. Columbus, Ohio; Atlanta and Chicago topped the list of major US cities with the worst air quality, though the researchers also noted that California was home to 10 of the 15 worst major cities for air pollution, including Los Angeles and Sacramento.
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