Air Quality:
AQI - History
Air Quality Index Values for 9/5/2010 - 8/7/2010
| Date |
Eugene/Springfield |
Oakridge |
| 9/5/2010 |
28 (O3) - Good |
10 (PM*) - Good |
| 9/4/2010 |
25 (O3) - Good |
10 (PM*) - Good |
| 9/3/2010 |
36 (PM*) - Good |
13 (PM*) - Good |
| 9/2/2010 |
27 (PM*) - Good |
7 (PM*) - Good |
| 9/1/2010 |
17 (O3) - Good |
5 (PM*) - Good |
| 8/31/2010 |
24 (O3) - Good |
4 (PM*) - Good |
| 8/30/2010 |
16 (O3) - Good |
7 (PM*) - Good |
| 8/29/2010 |
25 (O3) - Good |
6 (PM*) - Good |
| 8/28/2010 |
33 (O3) - Good |
8 (PM*) - Good |
| 8/27/2010 |
31 (O3) - Good |
9 (PM*) - Good |
| 8/26/2010 |
24 (O3) - Good |
15 (PM*) - Good |
| 8/25/2010 |
100 (O3) - Moderate |
24 (PM*) - Good |
| 8/24/2010 |
58 (O3) - Moderate |
13 (PM*) - Good |
| 8/23/2010 |
36 (O3) - Good |
- (-) - Good |
| 8/22/2010 |
35 (O3) - Good |
- (-) - Good |
| 8/21/2010 |
32 (O3) - Good |
10 (PM*) - Good |
| 8/20/2010 |
36 (O3) - Good |
16 (PM*) - Good |
| 8/19/2010 |
26 (O3) - Good |
21 (PM*) - Good |
| 8/18/2010 |
29 (O3) - Good |
22 (PM*) - Good |
| 8/17/2010 |
30 (O3) - Good |
23 (PM*) - Good |
| 8/16/2010 |
49 (O3) - Good |
17 (PM*) - Good |
| 8/15/2010 |
30 (O3) - Good |
12 (PM*) - Good |
| 8/14/2010 |
47 (O3) - Good |
17 (PM*) - Good |
| 8/13/2010 |
51 (O3) - Moderate |
19 (PM*) - Good |
| 8/12/2010 |
37 (O3) - Good |
14 (PM*) - Good |
| 8/11/2010 |
34 (O3) - Good |
12 (PM*) - Good |
| 8/10/2010 |
23 (O3) - Good |
13 (PM*) - Good |
| 8/9/2010 |
21 (O3) - Good |
11 (PM*) - Good |
| 8/8/2010 |
21 (O3) - Good |
7 (PM*) - Good |
| 8/7/2010 |
20 (O3) - Good |
25 (PM*) - Good |
*From Estimated Particulate Matter Concentration
AQI Value and Air Quality Descriptors
| AQI Level |
Numerical Value |
Meaning |
| Good |
0-50 |
Air quality is considered satisfactory, and air pollution poses little or no risk. |
| Moderate |
51-100 |
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. |
| Unhealthy for Sensitive Groups |
101-150 |
Members of sensitive groups may experience health effects. The general public is not likely to be affected. |
| Unhealthy |
151-200 |
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects. |
| Very Unhealthy |
201-300 |
Health alert: everyone may experience more serious health effects. |
| Hazardous |
301-500 |
Health warnings of emergency conditions. The entire population is more likely to be affected. |