World's most polluted cities 2020 (PM2.5)

The most polluted cities according to data aggregated from over 80,000 data points.

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2020

NEW

World air quality report

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2020 World air quality report

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PM2.5 Legend grey informational icon
WHO target
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
Unit: µg/m³

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