Air Quality Forecast Guidance for Douglas Park, IL

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 41.84 N, longitude: 87.69 W.
Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.

A FAQ page is available.
More information...
24Hr Maximum
Ending
Maximum 1 Hour Average Ozone
Concentration (PPB)*
Maximum 8 Hour Average Ozone
Concentration (PPB)*
Tomorrow
(Ending 04/21, 4Z)
51
43
*Due to grid interpolation methods, the maximum 1- and 8-hour ozone concentration values may have
values slightly higher or lower than those of the corresponding hourly ozone concentrations.

Ozone
Ending Time
1 Hour Average Ozone
Concentration (PPB)

12Z Model Run
8 Hour Average Ozone
Concentration (PPB)

12Z Model Run
Sun, 20 Apr  11 PM
9
22
Mon, 21 Apr  12 AM
20
18
Mon, 21 Apr  01 AM
19
14
Mon, 21 Apr  02 AM
16
11
Mon, 21 Apr  03 AM
15
10
Mon, 21 Apr  04 AM
15
12
Mon, 21 Apr  05 AM
14
14
Mon, 21 Apr  06 AM
8
14
Mon, 21 Apr  07 AM
6
14
Mon, 21 Apr  08 AM
9
13
Mon, 21 Apr  09 AM
9
11
Mon, 21 Apr  10 AM
7
10
Mon, 21 Apr  11 AM
8
9
Mon, 21 Apr  12 PM
12
9
Mon, 21 Apr  01 PM
25
10
Mon, 21 Apr  02 PM
42
15
Mon, 21 Apr  03 PM
38
19
Mon, 21 Apr  04 PM
26
21
Mon, 21 Apr  05 PM
22
23
Mon, 21 Apr  06 PM
17
24
Mon, 21 Apr   07 PM
10
24
Mon, 21 Apr   08 PM
1
23
Mon, 21 Apr   09 PM
0
20
Mon, 21 Apr   10 PM
2
14
Mon, 21 Apr   11 PM
9
11
Tue, 22 Apr   12 AM
24
11
Tue, 22 Apr   01 AM
33
12
Tue, 22 Apr   02 AM
34
14
Tue, 22 Apr   03 AM
30
17
Tue, 22 Apr   04 AM
25
20
Tue, 22 Apr   05 AM
25
23
Tue, 22 Apr   06 AM
30
26
Tue, 22 Apr   07 AM
29
29
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sun, 20 Apr  11 PM
0
0
Mon, 21 Apr  12 AM
0
0
Mon, 21 Apr  01 AM
0
0
Mon, 21 Apr  02 AM
0
0
Mon, 21 Apr  03 AM
0
0
Mon, 21 Apr  04 AM
0
0
Mon, 21 Apr  05 AM
0
0
Mon, 21 Apr  06 AM
0
0
Mon, 21 Apr  07 AM
0
0
Mon, 21 Apr  08 AM
0
0
Mon, 21 Apr  09 AM
0
0
Mon, 21 Apr  10 AM
0
1
Mon, 21 Apr  11 AM
0
1
Mon, 21 Apr  12 PM
0
1
Mon, 21 Apr  01 PM
0
1
Mon, 21 Apr  02 PM
0
0
Mon, 21 Apr  03 PM
1
0
Mon, 21 Apr  04 PM
0
0
Mon, 21 Apr  05 PM
0
0
Mon, 21 Apr  06 PM
0
0
Mon, 21 Apr  07 PM
0
0
Mon, 21 Apr  08 PM
0
0
Mon, 21 Apr  09 PM
0
0
Mon, 21 Apr  10 PM
0
0
Mon, 21 Apr  11 PM
0
0
Tue, 22 Apr  12 AM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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