Air Quality Forecast Guidance for Catholic University, DC

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.93 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...
24Hr Maximum
Ending
Maximum 1 Hour Average Ozone
Concentration (PPB)*
Maximum 8 Hour Average Ozone
Concentration (PPB)*
Tomorrow
(Ending 08/03, 4Z)
75
68
*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, 02 Aug  11 PM
29
53
Mon, 03 Aug  12 AM
28
48
Mon, 03 Aug  01 AM
27
42
Mon, 03 Aug  02 AM
27
37
Mon, 03 Aug  03 AM
26
32
Mon, 03 Aug  04 AM
25
29
Mon, 03 Aug  05 AM
24
27
Mon, 03 Aug  06 AM
19
26
Mon, 03 Aug  07 AM
13
24
Mon, 03 Aug  08 AM
15
22
Mon, 03 Aug  09 AM
23
22
Mon, 03 Aug  10 AM
37
23
Mon, 03 Aug  11 AM
51
26
Mon, 03 Aug  12 PM
58
30
Mon, 03 Aug  01 PM
60
35
Mon, 03 Aug  02 PM
62
40
Mon, 03 Aug  03 PM
63
46
Mon, 03 Aug  04 PM
61
52
Mon, 03 Aug  05 PM
57
56
Mon, 03 Aug  06 PM
58
58
Mon, 03 Aug  07 PM
56
59
Mon, 03 Aug   08 PM
52
58
Mon, 03 Aug   09 PM
46
57
Mon, 03 Aug   10 PM
44
54
Mon, 03 Aug   11 PM
44
52
Tue, 04 Aug   12 AM
37
49
Tue, 04 Aug   01 AM
32
46
Tue, 04 Aug   02 AM
30
42
Tue, 04 Aug   03 AM
28
39
Tue, 04 Aug   04 AM
29
36
Tue, 04 Aug   05 AM
28
34
Tue, 04 Aug   06 AM
27
32
Tue, 04 Aug   07 AM
21
29
Tue, 04 Aug   08 AM
24
28
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, 02 Aug  11 PM
0
0
Mon, 03 Aug  12 AM
0
0
Mon, 03 Aug  01 AM
0
0
Mon, 03 Aug  02 AM
0
0
Mon, 03 Aug  03 AM
0
0
Mon, 03 Aug  04 AM
0
0
Mon, 03 Aug  05 AM
0
0
Mon, 03 Aug  06 AM
0
0
Mon, 03 Aug  07 AM
0
0
Mon, 03 Aug  08 AM
0
0
Mon, 03 Aug  09 AM
0
0
Mon, 03 Aug  10 AM
0
0
Mon, 03 Aug  11 AM
0
0
Mon, 03 Aug  12 PM
0
0
Mon, 03 Aug  01 PM
0
0
Mon, 03 Aug  02 PM
0
0
Mon, 03 Aug  03 PM
0
0
Mon, 03 Aug  04 PM
0
0
Mon, 03 Aug  05 PM
0
0
Mon, 03 Aug  06 PM
0
0
Mon, 03 Aug  07 PM
0
0
Mon, 03 Aug  08 PM
0
0
Mon, 03 Aug  09 PM
0
0
Mon, 03 Aug  10 PM
0
0
Mon, 03 Aug  11 PM
0
0
Tue, 04 Aug  12 AM
0
0
Tue, 04 Aug  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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