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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 04/25, 4Z)
36
33
*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)

6Z Model Run
8 Hour Average Ozone
Concentration (PPB)

6Z Model Run
Thu, 24 Apr  09 AM
18
20
Thu, 24 Apr  10 AM
19
20
Thu, 24 Apr  11 AM
24
20
Thu, 24 Apr  12 PM
30
22
Thu, 24 Apr  01 PM
32
23
Thu, 24 Apr  02 PM
34
24
Thu, 24 Apr  03 PM
36
26
Thu, 24 Apr  04 PM
36
29
Thu, 24 Apr  05 PM
36
31
Thu, 24 Apr  06 PM
30
32
Thu, 24 Apr   07 PM
25
32
Thu, 24 Apr   08 PM
24
32
Thu, 24 Apr   09 PM
23
30
Thu, 24 Apr   10 PM
21
29
Thu, 24 Apr   11 PM
17
26
Fri, 25 Apr   12 AM
11
23
Fri, 25 Apr   01 AM
10
20
Fri, 25 Apr   02 AM
12
18
Fri, 25 Apr   03 AM
12
16
Fri, 25 Apr   04 AM
8
14
Fri, 25 Apr   05 AM
8
12
Fri, 25 Apr   06 AM
16
12
Fri, 25 Apr   07 AM
19
12
Fri, 25 Apr   08 AM
15
12
Fri, 25 Apr   09 AM
16
13
Fri, 25 Apr   10 AM
22
14
Fri, 25 Apr   11 AM
29
16
Fri, 25 Apr   12 PM
35
20
Fri, 25 Apr   01 PM
40
24
Fri, 25 Apr   02 PM
43
27
Fri, 25 Apr   03 PM
44
30
Fri, 25 Apr   04 PM
43
34
Fri, 25 Apr   05 PM
40
37
Fri, 25 Apr   06 PM
36
39
Fri, 25 Apr   07 PM
27
39
Fri, 25 Apr   08 PM
9
35
Fri, 25 Apr   09 PM
1
30
Fri, 25 Apr   10 PM
0
25
Fri, 25 Apr   11 PM
0
20
Sat, 26 Apr   12 AM
1
14
Sat, 26 Apr   01 AM
2
9
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 24 Apr  09 AM
0
0
Thu, 24 Apr  10 AM
0
1
Thu, 24 Apr  11 AM
0
1
Thu, 24 Apr  12 PM
0
0
Thu, 24 Apr  01 PM
0
0
Thu, 24 Apr  02 PM
0
0
Thu, 24 Apr  03 PM
0
0
Thu, 24 Apr  04 PM
0
0
Thu, 24 Apr  05 PM
0
0
Thu, 24 Apr  06 PM
0
0
Thu, 24 Apr  07 PM
0
0
Thu, 24 Apr  08 PM
0
0
Thu, 24 Apr  09 PM
0
0
Thu, 24 Apr  10 PM
0
2
Thu, 24 Apr  11 PM
0
0
Fri, 25 Apr  12 AM
0
0
Fri, 25 Apr  01 AM
0
0
Fri, 25 Apr  02 AM
0
0
Fri, 25 Apr  03 AM
0
0
Fri, 25 Apr  04 AM
0
0
Fri, 25 Apr  05 AM
0
0
Fri, 25 Apr  06 AM
0
0
Fri, 25 Apr  07 AM
0
0
Fri, 25 Apr  08 AM
0
0
Fri, 25 Apr  09 AM
0
0
Fri, 25 Apr  10 AM
0
0
Fri, 25 Apr  11 AM
0
0
Fri, 25 Apr  12 PM
0
0
Fri, 25 Apr  01 PM
0
0
Fri, 25 Apr  02 PM
0
0
Fri, 25 Apr  03 PM
0
0
Fri, 25 Apr  04 PM
0
0
Fri, 25 Apr  05 PM
0
0
Fri, 25 Apr  06 PM
0
0
Fri, 25 Apr  07 PM
0
0
Fri, 25 Apr  08 PM
0
0
Fri, 25 Apr  09 PM
0
0
Fri, 25 Apr  10 PM
0
0
Fri, 25 Apr  11 PM
0
0
Sat, 26 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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