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Air Quality Forecast Guidance for The Mall, DC

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.89 N, longitude: 77.02 W.
Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.

A FAQ page is available.
More information...

Ozone
Ending Time
(Local Time)
1 Hour Average Ozone
Concentration (PPB)

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

12Z Model Run
Mon, Oct 20  01 AM
13
14
Mon, Oct 20  02 AM
14
12
Mon, Oct 20  03 AM
16
10
Mon, Oct 20  04 AM
16
9
Mon, Oct 20  05 AM
15
9
Mon, Oct 20  06 AM
10
9
Mon, Oct 20  07 AM
4
11
Mon, Oct 20  08 AM
2
14
Mon, Oct 20  09 AM
5
17
Mon, Oct 20  10 AM
11
21
Mon, Oct 20  11 AM
23
23
Mon, Oct 20  12 PM
32
25
Mon, Oct 20  01 PM
34
23
Mon, Oct 20  02 PM
36
20
Mon, Oct 20  03 PM
37
17
Mon, Oct 20  04 PM
36
13
Mon, Oct 20  05 PM
33
10
Mon, Oct 20  06 PM
26
7
Mon, Oct 20  07 PM
6
6
Mon, Oct 20  08 PM
0
5
Mon, Oct 20  09 PM
0
7
Mon, Oct 20  10 PM
0
9
Mon, Oct 20  11 PM
1
11
Tue, Oct 21  12 AM
8
12
Tue, Oct 21  01 AM
13
12
Tue, Oct 21  02 AM
15
12
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

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