The 2023 World Air Quality Report showed that only a few countries have acceptable air quality. Bangladesh, Pakistan, and India were listed as the most polluted. Canada was the most polluted country ...
IQAir's air quality report ranked the world's most and least polluted areas. The report revealed 92.5% of countries and only 9% of cities met WHO's PM2.5 guidelines in 2023. Cities in California, ...
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