Illinois PM2.5 Daily Averages
24-hour Standard - 35 micrograms per cubic meter
Unhealthy for Sensitive Groups - 35.5 micrograms per cubic meter
(values in micrograms per cubic meter)
| Region |
County |
Site |
4/3 |
4/4 |
4/5 |
4/6 |
4/7 |
4/8 |
4/9 |
| Chicago Metropolitan |
Cook |
Alsip |
3.7 |
9.0 |
5.4 |
12.7 |
13.0 |
11.5 |
9.9 |
| Cook |
Chicago - ComEd |
6.7 |
13.5 |
7.6 |
10.3 |
16.9 |
13.0 |
12.1 |
| Cook |
Chicago - Springfield |
6.3 |
15.2 |
10.4 |
11.9 |
15.2 |
13.9 |
9.7 |
| Cook |
Northbrook |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
| Du Page |
Naperville |
8.7 |
13.4 |
7.4 |
14.5 |
-- |
-- |
-- |
| McHenry |
Cary |
3.3 |
12.7 |
6.0 |
9.1 |
14.0 |
11.5 |
9.7 |
| West Central Illinois |
Peoria |
Peoria - Jefferson |
7.4 |
10.8 |
10.2 |
9.1 |
17.4 |
9.0 |
11.6 |
| East Central Illinois |
Macon |
Decatur |
5.1 |
-- |
-- |
-- |
-- |
-- |
10.5 |
| Metro East |
Madison |
Granite City |
10.0 |
14.1 |
20.5 |
20.8 |
17.1 |
-- |
-- |
| St. Clair |
East St. Louis |
9.6 |
14.9 |
19.2 |
17.3 |
-- |
-- |
-- |
|