Almost nowhere on Earth safe from PM2.5, says Melbourne study
Envirotec Magazine
MARCH 7, 2023
μg/m³), other regions in Oceania (12.6 Based on the new 2021 WHO guideline limit, only 0.18% of the global land area and 0.001% of the global population were exposed to an annual exposure lower than this guideline limit (annual average of 5 μg/m³) in 2019. The highest PM 2.5 µg/m 3 ) and Southern Asia (37.2 concentrations.
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