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Importantly while daily levels have reduced in Europe and North America in the two decades to 2019, levels have increased in Southern Asia, Australia, New Zealand, Latin America and the Caribbean, with more than 70% of days globally seeing levels above what is safe. “In 5 from 2000 to 2019 was 32.8 The study reveals that annual PM 2.5
The report also said 7% of cities in Europe met the WHO PM2.5 levels but remains the most polluted country in Europe, with an annual average concentration of 27.5 have reduced in Europe and North America in this period, while levels have increased in Southern Asia, Australia, New Zealand, Latin America and the Caribbean.
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