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 06/01, 4Z)
75
69
*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
Tue, 31 May  10 AM
35
25
Tue, 31 May  11 AM
45
27
Tue, 31 May  12 PM
54
31
Tue, 31 May  01 PM
61
35
Tue, 31 May  02 PM
66
40
Tue, 31 May  03 PM
69
47
Tue, 31 May  04 PM
72
53
Tue, 31 May  05 PM
74
60
Tue, 31 May  06 PM
75
65
Tue, 31 May  07 PM
74
68
Tue, 31 May   08 PM
60
69
Tue, 31 May   09 PM
49
68
Tue, 31 May   10 PM
41
64
Tue, 31 May   11 PM
35
60
Wed, 01 Jun   12 AM
34
55
Wed, 01 Jun   01 AM
33
50
Wed, 01 Jun   02 AM
31
45
Wed, 01 Jun   03 AM
28
39
Wed, 01 Jun   04 AM
26
35
Wed, 01 Jun   05 AM
24
32
Wed, 01 Jun   06 AM
20
29
Wed, 01 Jun   07 AM
13
26
Wed, 01 Jun   08 AM
12
24
Wed, 01 Jun   09 AM
22
22
Wed, 01 Jun   10 AM
43
24
Wed, 01 Jun   11 AM
57
27
Wed, 01 Jun   12 PM
63
32
Wed, 01 Jun   01 PM
64
37
Wed, 01 Jun   02 PM
64
42
Wed, 01 Jun   03 PM
63
48
Wed, 01 Jun   04 PM
63
55
Wed, 01 Jun   05 PM
62
60
Wed, 01 Jun   06 PM
61
62
Wed, 01 Jun   07 PM
57
62
Wed, 01 Jun   08 PM
48
60
Wed, 01 Jun   09 PM
34
56
Wed, 01 Jun   10 PM
25
52
Wed, 01 Jun   11 PM
24
47
Thu, 02 Jun   12 AM
24
42
Thu, 02 Jun   01 AM
24
37
Thu, 02 Jun   02 AM
25
33
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, 31 May  07 AM
0
0
Tue, 31 May  08 AM
0
0
Tue, 31 May  09 AM
0
0
Tue, 31 May  10 AM
0
0
Tue, 31 May  11 AM
0
0
Tue, 31 May  12 PM
0
0
Tue, 31 May  01 PM
0
0
Tue, 31 May  02 PM
0
0
Tue, 31 May  03 PM
0
0
Tue, 31 May  04 PM
0
0
Tue, 31 May  05 PM
0
0
Tue, 31 May  06 PM
0
0
Tue, 31 May  07 PM
0
0
Tue, 31 May  08 PM
0
0
Tue, 31 May  09 PM
0
0
Tue, 31 May  10 PM
0
0
Tue, 31 May  11 PM
0
0
Wed, 01 Jun  12 AM
0
0
Wed, 01 Jun  01 AM
0
0
Wed, 01 Jun  02 AM
0
0
Wed, 01 Jun  03 AM
0
0
Wed, 01 Jun  04 AM
0
0
Wed, 01 Jun  05 AM
0
0
Wed, 01 Jun  06 AM
0
0
Wed, 01 Jun  07 AM
0
0
Wed, 01 Jun  08 AM
0
0
Wed, 01 Jun  09 AM
0
0
Wed, 01 Jun  10 AM
0
0
Wed, 01 Jun  11 AM
0
0
Wed, 01 Jun  12 PM
0
0
Wed, 01 Jun  01 PM
0
0
Wed, 01 Jun  02 PM
0
0
Wed, 01 Jun  03 PM
0
0
Wed, 01 Jun  04 PM
0
0
Wed, 01 Jun  05 PM
0
0
Wed, 01 Jun  06 PM
0
0
Wed, 01 Jun  07 PM
0
0
Wed, 01 Jun  08 PM
0
0
Wed, 01 Jun  09 PM
0
0
Wed, 01 Jun  10 PM
0
0
Wed, 01 Jun  11 PM
0
0
Thu, 02 Jun  12 AM
0
0
Thu, 02 Jun  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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