Air Quality Country List

National Average Particulate Air Pollution (PM2.5)

All numbers are PM2.5 concentration in μg/m3. Averages based on regionally interpolated real-time monitoring station data. Local cities may have more or less pollution than the national average. Only countries with sufficient data are shown. May include data from monitoring sites both inside the country and from neighboring countries. Real-time data may contain errors and is subject to revision. Some countries have incomplete spatial or temporal coverage. Colors based on United States EPA Health Guidelines.

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