Air Quality Forecast Guidance for Portsmouth, NH

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 43.07 N, longitude: 70.77 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 04/19, 4Z)
44
41
*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
Mon, 19 Apr  02 AM
23
32
Mon, 19 Apr  03 AM
22
29
Mon, 19 Apr  04 AM
20
27
Mon, 19 Apr  05 AM
22
26
Mon, 19 Apr  06 AM
17
23
Mon, 19 Apr  07 AM
22
22
Mon, 19 Apr  08 AM
23
22
Mon, 19 Apr  09 AM
28
22
Mon, 19 Apr  10 AM
32
23
Mon, 19 Apr  11 AM
35
25
Mon, 19 Apr  12 PM
37
27
Mon, 19 Apr  01 PM
38
29
Mon, 19 Apr  02 PM
40
32
Mon, 19 Apr  03 PM
40
34
Mon, 19 Apr  04 PM
38
36
Mon, 19 Apr  05 PM
39
37
Mon, 19 Apr  06 PM
37
38
Mon, 19 Apr  07 PM
36
38
Mon, 19 Apr   08 PM
36
38
Mon, 19 Apr   09 PM
32
37
Mon, 19 Apr   10 PM
34
36
Mon, 19 Apr   11 PM
34
36
Tue, 20 Apr   12 AM
31
35
Tue, 20 Apr   01 AM
33
34
Tue, 20 Apr   02 AM
36
34
Tue, 20 Apr   03 AM
37
34
Tue, 20 Apr   04 AM
34
34
Tue, 20 Apr   05 AM
28
33
Tue, 20 Apr   06 AM
28
33
Tue, 20 Apr   07 AM
28
32
Tue, 20 Apr   08 AM
30
32
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)
06Z Model Run
Mon, 19 Apr  02 AM
0
0
Mon, 19 Apr  03 AM
0
0
Mon, 19 Apr  04 AM
0
0
Mon, 19 Apr  05 AM
0
0
Mon, 19 Apr  06 AM
0
0
Mon, 19 Apr  07 AM
0
0
Mon, 19 Apr  08 AM
0
0
Mon, 19 Apr  09 AM
0
0
Mon, 19 Apr  10 AM
0
0
Mon, 19 Apr  11 AM
0
0
Mon, 19 Apr  12 PM
0
0
Mon, 19 Apr  01 PM
0
0
Mon, 19 Apr  02 PM
0
0
Mon, 19 Apr  03 PM
0
0
Mon, 19 Apr  04 PM
0
0
Mon, 19 Apr  05 PM
0
0
Mon, 19 Apr  06 PM
0
0
Mon, 19 Apr  07 PM
0
0
Mon, 19 Apr  08 PM
0
0
Mon, 19 Apr  09 PM
0
0
Mon, 19 Apr  10 PM
0
0
Mon, 19 Apr  11 PM
0
0
Tue, 20 Apr  12 AM
0
0
Tue, 20 Apr  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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