Number of days with unhealthy air pollution in the U.S. 2000-2022

Number of unhealthy air quality days in the United States from 2000 to 2022

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Release date

May 2023

Region

United States

Survey time period

2000 to 2022

Special properties

Number of days reaching unhealthy for sensitive groups level or above on the Air Quality Index (AQI) based on 35 major U.S. cities for ozone and PM2.5 combined.

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Access all statistics starting from $2,388 USD yearly *

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For single users
$199 USD
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Professional Account

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