Almost nowhere on Earth safe from PM2.5, says Melbourne study
Envirotec Magazine
MARCH 7, 2023
concentrations at a high spatial resolution of approximately 10km ×10km for global grid cells in 2000-2019, focusing on areas above 15 μg/m³ which is considered the safe limit by WHO (The threshold is still arguable),” he said. 5 from 2000 to 2019 was 32.8 µg/m 3 ), followed by northern Africa (30.1 concentration and high PM 2.5
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