Air Quality Forecast Guidance for North Potomac, MD

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.12 N, longitude: 77.25 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 01/24, 4Z)
33
31
*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, 24 Jan  03 AM
28
27
Sun, 24 Jan  04 AM
27
27
Sun, 24 Jan  05 AM
27
28
Sun, 24 Jan  06 AM
26
28
Sun, 24 Jan  07 AM
25
28
Sun, 24 Jan  08 AM
20
27
Sun, 24 Jan  09 AM
22
26
Sun, 24 Jan  10 AM
27
25
Sun, 24 Jan  11 AM
29
25
Sun, 24 Jan  12 PM
30
26
Sun, 24 Jan  01 PM
32
27
Sun, 24 Jan  02 PM
31
27
Sun, 24 Jan  03 PM
32
28
Sun, 24 Jan  04 PM
21
28
Sun, 24 Jan  05 PM
23
28
Sun, 24 Jan  06 PM
17
27
Sun, 24 Jan   07 PM
24
26
Sun, 24 Jan   08 PM
25
26
Sun, 24 Jan   09 PM
22
24
Sun, 24 Jan   10 PM
17
23
Sun, 24 Jan   11 PM
12
20
Mon, 25 Jan   12 AM
12
19
Mon, 25 Jan   01 AM
10
17
Mon, 25 Jan   02 AM
10
17
Mon, 25 Jan   03 AM
11
15
Mon, 25 Jan   04 AM
10
13
Mon, 25 Jan   05 AM
10
12
Mon, 25 Jan   06 AM
11
11
Mon, 25 Jan   07 AM
10
10
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, 24 Jan  03 AM
0
0
Sun, 24 Jan  04 AM
0
0
Sun, 24 Jan  05 AM
0
0
Sun, 24 Jan  06 AM
0
0
Sun, 24 Jan  07 AM
0
0
Sun, 24 Jan  08 AM
0
0
Sun, 24 Jan  09 AM
0
0
Sun, 24 Jan  10 AM
0
0
Sun, 24 Jan  11 AM
0
0
Sun, 24 Jan  12 PM
0
0
Sun, 24 Jan  01 PM
0
0
Sun, 24 Jan  02 PM
0
0
Sun, 24 Jan  03 PM
0
0
Sun, 24 Jan  04 PM
0
0
Sun, 24 Jan  05 PM
0
0
Sun, 24 Jan  06 PM
0
0
Sun, 24 Jan  07 PM
0
0
Sun, 24 Jan  08 PM
0
0
Sun, 24 Jan  09 PM
0
0
Sun, 24 Jan  10 PM
0
0
Sun, 24 Jan  11 PM
0
0
Mon, 25 Jan  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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