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 04/24, 4Z)
35
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
Wed, 23 Apr  09 AM
30
17
Wed, 23 Apr  10 AM
32
20
Wed, 23 Apr  11 AM
33
23
Wed, 23 Apr  12 PM
34
26
Wed, 23 Apr  01 PM
35
28
Wed, 23 Apr  02 PM
35
30
Wed, 23 Apr  03 PM
34
32
Wed, 23 Apr  04 PM
32
33
Wed, 23 Apr  05 PM
31
33
Wed, 23 Apr  06 PM
27
33
Wed, 23 Apr   07 PM
24
31
Wed, 23 Apr   08 PM
20
30
Wed, 23 Apr   09 PM
16
27
Wed, 23 Apr   10 PM
17
25
Wed, 23 Apr   11 PM
21
23
Thu, 24 Apr   12 AM
27
23
Thu, 24 Apr   01 AM
28
22
Thu, 24 Apr   02 AM
25
22
Thu, 24 Apr   03 AM
20
22
Thu, 24 Apr   04 AM
17
21
Thu, 24 Apr   05 AM
18
22
Thu, 24 Apr   06 AM
18
22
Thu, 24 Apr   07 AM
10
20
Thu, 24 Apr   08 AM
5
18
Thu, 24 Apr   09 AM
9
15
Thu, 24 Apr   10 AM
15
14
Thu, 24 Apr   11 AM
24
14
Thu, 24 Apr   12 PM
27
16
Thu, 24 Apr   01 PM
28
17
Thu, 24 Apr   02 PM
32
19
Thu, 24 Apr   03 PM
34
22
Thu, 24 Apr   04 PM
34
25
Thu, 24 Apr   05 PM
32
28
Thu, 24 Apr   06 PM
29
30
Thu, 24 Apr   07 PM
30
31
Thu, 24 Apr   08 PM
28
31
Thu, 24 Apr   09 PM
22
30
Thu, 24 Apr   10 PM
25
29
Thu, 24 Apr   11 PM
28
29
Fri, 25 Apr   12 AM
28
28
Fri, 25 Apr   01 AM
25
27
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Wed, 23 Apr  07 AM
0
0
Wed, 23 Apr  08 AM
0
0
Wed, 23 Apr  09 AM
0
0
Wed, 23 Apr  10 AM
0
0
Wed, 23 Apr  11 AM
0
0
Wed, 23 Apr  12 PM
0
0
Wed, 23 Apr  01 PM
0
0
Wed, 23 Apr  02 PM
0
0
Wed, 23 Apr  03 PM
0
0
Wed, 23 Apr  04 PM
0
0
Wed, 23 Apr  05 PM
0
0
Wed, 23 Apr  06 PM
0
0
Wed, 23 Apr  07 PM
0
0
Wed, 23 Apr  08 PM
0
1
Wed, 23 Apr  09 PM
0
2
Wed, 23 Apr  10 PM
0
2
Wed, 23 Apr  11 PM
0
1
Thu, 24 Apr  12 AM
0
0
Thu, 24 Apr  01 AM
0
1
Thu, 24 Apr  02 AM
0
0
Thu, 24 Apr  03 AM
0
0
Thu, 24 Apr  04 AM
0
0
Thu, 24 Apr  05 AM
0
0
Thu, 24 Apr  06 AM
0
0
Thu, 24 Apr  07 AM
0
0
Thu, 24 Apr  08 AM
0
0
Thu, 24 Apr  09 AM
0
0
Thu, 24 Apr  10 AM
0
0
Thu, 24 Apr  11 AM
0
0
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
0
Thu, 24 Apr  11 PM
0
0
Fri, 25 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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