Counting the microns
Envirotec Magazine
MAY 2, 2024
The report is said to be based upon a worldwide monitoring network of more than 30,000 stations. 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 Overall, the trend in European cities is towards lower PM2.5
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