Today's highest 8-Hour Avg. .004 at the South Monitor
Have we exceeded the standard today? NO
Did we exceed the standard yesterday? NO
Data is 'real-time', preliminary and subject to change upon QA/QC by ODEQ and EPA
The Air quality Index (AQI) reflects the health concern and corresponds to the EPA's national pollutant standard.
AQI's higher than 100 generally mean air quality unhealthy for sensitive groups and an exceedance of the pollutant's standard.
The AQI below reflects ozone.
No health effects are expected when the AQI is in this range
Unhealthy for Sensitive Groups
Indicates the highest pollutant index from midnight until the time the page was last updated, changing when a new high
is reflected throughout the day.