American Samoa Air Quality Rankings
County-level AQI rollup using EPA Air Quality System monitor records. Refreshed as new EPA AQS data lands.
County-by-county air quality data for American Samoa based on EPA AQS annual AQI readings. Limited monitoring data is available for this state.
No EPA AQS monitoring data is available for counties in American Samoa. This typically occurs in states with fewer EPA monitoring stations.
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Air quality data is from the EPA Air Quality System (AQS), Annual AQI by County dataset. Counties with fewer than 10 monitored days are excluded. "Unhealthy days" counts days with AQI above 100 (Unhealthy for Sensitive Groups or worse). All data is for 2024.
Source: U.S. Environmental Protection Agency, Air Quality System (AQS) U.S. Environmental Protection Agency, Air Quality System (AQS)
Read our methodology - how this data is sourced, computed, and verified.