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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 01/31, 4Z)
26
26
*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
Sat, 31 Jan  12 AM
26
24
Sat, 31 Jan  01 AM
26
24
Sat, 31 Jan  02 AM
26
25
Sat, 31 Jan  03 AM
27
26
Sat, 31 Jan  04 AM
26
26
Sat, 31 Jan  05 AM
26
26
Sat, 31 Jan  06 AM
25
26
Sat, 31 Jan  07 AM
23
26
Sat, 31 Jan  08 AM
20
25
Sat, 31 Jan  09 AM
21
24
Sat, 31 Jan  10 AM
22
24
Sat, 31 Jan  11 AM
23
23
Sat, 31 Jan  12 PM
24
23
Sat, 31 Jan  01 PM
25
23
Sat, 31 Jan  02 PM
26
23
Sat, 31 Jan  03 PM
26
23
Sat, 31 Jan  04 PM
25
24
Sat, 31 Jan  05 PM
21
24
Sat, 31 Jan  06 PM
6
22
Sat, 31 Jan   07 PM
0
19
Sat, 31 Jan   08 PM
0
16
Sat, 31 Jan   09 PM
0
13
Sat, 31 Jan   10 PM
0
10
Sat, 31 Jan   11 PM
1
7
Sun, 01 Feb   12 AM
2
4
Sun, 01 Feb   01 AM
6
2
Sun, 01 Feb   02 AM
8
2
Sun, 01 Feb   03 AM
10
3
Sun, 01 Feb   04 AM
11
5
Sun, 01 Feb   05 AM
11
6
Sun, 01 Feb   06 AM
9
7
Sun, 01 Feb   07 AM
6
8
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sat, 31 Jan  12 AM
0
0
Sat, 31 Jan  01 AM
0
0
Sat, 31 Jan  02 AM
0
0
Sat, 31 Jan  03 AM
0
0
Sat, 31 Jan  04 AM
0
0
Sat, 31 Jan  05 AM
0
0
Sat, 31 Jan  06 AM
0
0
Sat, 31 Jan  07 AM
0
0
Sat, 31 Jan  08 AM
0
0
Sat, 31 Jan  09 AM
0
0
Sat, 31 Jan  10 AM
0
0
Sat, 31 Jan  11 AM
0
0
Sat, 31 Jan  12 PM
0
0
Sat, 31 Jan  01 PM
0
0
Sat, 31 Jan  02 PM
0
0
Sat, 31 Jan  03 PM
0
0
Sat, 31 Jan  04 PM
0
0
Sat, 31 Jan  05 PM
0
0
Sat, 31 Jan  06 PM
0
0
Sat, 31 Jan  07 PM
0
0
Sat, 31 Jan  08 PM
0
0
Sat, 31 Jan  09 PM
0
0
Sat, 31 Jan  10 PM
0
0
Sat, 31 Jan  11 PM
0
0
Sun, 01 Feb  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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