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 07/07, 4Z)
45
44
*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
Tue, 07 Jul  05 AM
28
30
Tue, 07 Jul  06 AM
23
29
Tue, 07 Jul  07 AM
16
28
Tue, 07 Jul  08 AM
14
26
Tue, 07 Jul  09 AM
26
25
Tue, 07 Jul  10 AM
39
26
Tue, 07 Jul  11 AM
47
28
Tue, 07 Jul  12 PM
55
31
Tue, 07 Jul  01 PM
63
35
Tue, 07 Jul  02 PM
68
41
Tue, 07 Jul  03 PM
69
48
Tue, 07 Jul  04 PM
67
54
Tue, 07 Jul  05 PM
64
59
Tue, 07 Jul  06 PM
60
62
Tue, 07 Jul  07 PM
51
62
Tue, 07 Jul   08 PM
40
60
Tue, 07 Jul   09 PM
34
56
Tue, 07 Jul   10 PM
31
52
Tue, 07 Jul   11 PM
31
47
Wed, 08 Jul   12 AM
32
43
Wed, 08 Jul   01 AM
33
39
Wed, 08 Jul   02 AM
33
36
Wed, 08 Jul   03 AM
31
33
Wed, 08 Jul   04 AM
30
32
Wed, 08 Jul   05 AM
27
31
Wed, 08 Jul   06 AM
21
30
Wed, 08 Jul   07 AM
14
28
Wed, 08 Jul   08 AM
12
25
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 07 Jul  05 AM
0
0
Tue, 07 Jul  06 AM
0
0
Tue, 07 Jul  07 AM
0
0
Tue, 07 Jul  08 AM
0
0
Tue, 07 Jul  09 AM
0
0
Tue, 07 Jul  10 AM
0
0
Tue, 07 Jul  11 AM
0
0
Tue, 07 Jul  12 PM
0
0
Tue, 07 Jul  01 PM
0
0
Tue, 07 Jul  02 PM
0
0
Tue, 07 Jul  03 PM
0
0
Tue, 07 Jul  04 PM
0
0
Tue, 07 Jul  05 PM
0
0
Tue, 07 Jul  06 PM
0
0
Tue, 07 Jul  07 PM
0
0
Tue, 07 Jul  08 PM
0
0
Tue, 07 Jul  09 PM
0
0
Tue, 07 Jul  10 PM
0
0
Tue, 07 Jul  11 PM
0
0
Wed, 08 Jul  12 AM
0
0
Wed, 08 Jul  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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