Air Quality Forecast Guidance for Portsmouth, NH

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 43.07 N, longitude: 70.76 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 07/05, 4Z)
38
35
*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, 04 Jul  05 PM
34
31
Mon, 04 Jul  06 PM
32
32
Mon, 04 Jul  07 PM
34
33
Mon, 04 Jul   08 PM
36
34
Mon, 04 Jul   09 PM
35
35
Mon, 04 Jul   10 PM
34
35
Mon, 04 Jul   11 PM
27
33
Tue, 05 Jul   12 AM
24
32
Tue, 05 Jul   01 AM
24
31
Tue, 05 Jul   02 AM
22
29
Tue, 05 Jul   03 AM
19
28
Tue, 05 Jul   04 AM
17
25
Tue, 05 Jul   05 AM
14
23
Tue, 05 Jul   06 AM
12
20
Tue, 05 Jul   07 AM
10
18
Tue, 05 Jul   08 AM
7
16
Tue, 05 Jul   09 AM
4
13
Tue, 05 Jul   10 AM
3
11
Tue, 05 Jul   11 AM
3
9
Tue, 05 Jul   12 PM
9
8
Tue, 05 Jul   01 PM
23
9
Tue, 05 Jul   02 PM
37
12
Tue, 05 Jul   03 PM
46
17
Tue, 05 Jul   04 PM
53
22
Tue, 05 Jul   05 PM
50
28
Tue, 05 Jul   06 PM
47
34
Tue, 05 Jul   07 PM
51
40
Tue, 05 Jul   08 PM
58
46
Tue, 05 Jul   09 PM
57
50
Tue, 05 Jul   10 PM
52
52
Tue, 05 Jul   11 PM
49
52
Wed, 06 Jul   12 AM
45
51
Wed, 06 Jul   01 AM
43
50
Wed, 06 Jul   02 AM
43
50
Wed, 06 Jul   03 AM
40
48
Wed, 06 Jul   04 AM
38
46
Wed, 06 Jul   05 AM
36
43
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, 04 Jul  05 PM
0
0
Mon, 04 Jul  06 PM
0
0
Mon, 04 Jul  07 PM
0
0
Mon, 04 Jul  08 PM
0
0
Mon, 04 Jul  09 PM
0
0
Mon, 04 Jul  10 PM
0
0
Mon, 04 Jul  11 PM
0
0
Tue, 05 Jul  12 AM
0
0
Tue, 05 Jul  01 AM
0
0
Tue, 05 Jul  02 AM
0
0
Tue, 05 Jul  03 AM
0
0
Tue, 05 Jul  04 AM
0
0
Tue, 05 Jul  05 AM
0
0
Tue, 05 Jul  06 AM
0
0
Tue, 05 Jul  07 AM
0
0
Tue, 05 Jul  08 AM
0
0
Tue, 05 Jul  09 AM
0
0
Tue, 05 Jul  10 AM
0
0
Tue, 05 Jul  11 AM
0
0
Tue, 05 Jul  12 PM
0
0
Tue, 05 Jul  01 PM
0
0
Tue, 05 Jul  02 PM
0
0
Tue, 05 Jul  03 PM
0
0
Tue, 05 Jul  04 PM
0
0
Tue, 05 Jul  05 PM
0
0
Tue, 05 Jul  06 PM
0
0
Tue, 05 Jul  07 PM
0
0
Tue, 05 Jul  08 PM
0
0
Tue, 05 Jul  09 PM
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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