Air Quality Index

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Last updated: March 25, 2019, 10:06:01 pm

The EPA's Ozone Standard is exceeded at .071 ppm
Monitoring Station Current 1-hr Reading High 1-hr Reading Current 8-hr Average High 8-hr Average
South .031 .042 .039 .039
West .032 .048 .043 .044
East .035 .040 .036 .036
Central .031 .041 .038 .038
North .036 .043 .039 .039
Today's highest 8-Hour Avg. .044 at the West 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
Air Quality AQI
Good
0-49
Moderate
50-99
Unhealthy for
Sensitive Groups
100-149
Unhealthy
150-200
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.