Air Quality Forecast Guidance for Salem, OR

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 44.94 N, longitude: 123.03 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 03/29, 4Z)
37
36
*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
Sat, 28 Mar  07 AM
33
35
Sat, 28 Mar  08 AM
32
35
Sat, 28 Mar  09 AM
34
34
Sat, 28 Mar  10 AM
35
34
Sat, 28 Mar  11 AM
35
34
Sat, 28 Mar  12 PM
35
34
Sat, 28 Mar  01 PM
35
34
Sat, 28 Mar  02 PM
36
34
Sat, 28 Mar  03 PM
36
35
Sat, 28 Mar  04 PM
37
36
Sat, 28 Mar   05 PM
37
36
Sat, 28 Mar   06 PM
35
36
Sat, 28 Mar   07 PM
27
35
Sat, 28 Mar   08 PM
21
33
Sat, 28 Mar   09 PM
20
31
Sat, 28 Mar   10 PM
21
29
Sat, 28 Mar   11 PM
22
28
Sun, 29 Mar   12 AM
23
26
Sun, 29 Mar   01 AM
21
24
Sun, 29 Mar   02 AM
21
22
Sun, 29 Mar   03 AM
21
21
Sun, 29 Mar   04 AM
20
21
Sun, 29 Mar   05 AM
20
21
Sun, 29 Mar   06 AM
19
21
Sun, 29 Mar   07 AM
17
20
Sun, 29 Mar   08 AM
16
19
Sun, 29 Mar   09 AM
16
19
Sun, 29 Mar   10 AM
23
19
Sun, 29 Mar   11 AM
30
20
Sun, 29 Mar   12 PM
34
22
Sun, 29 Mar   01 PM
38
24
Sun, 29 Mar   02 PM
40
27
Sun, 29 Mar   03 PM
40
30
Sun, 29 Mar   04 PM
37
32
Sun, 29 Mar   05 PM
35
35
Sun, 29 Mar   06 PM
31
36
Sun, 29 Mar   07 PM
22
35
Sun, 29 Mar   08 PM
18
33
Sun, 29 Mar   09 PM
18
30
Sun, 29 Mar   10 PM
19
27
Sun, 29 Mar   11 PM
19
25
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, 28 Mar  05 AM
0
0
Sat, 28 Mar  06 AM
0
0
Sat, 28 Mar  07 AM
0
0
Sat, 28 Mar  08 AM
0
0
Sat, 28 Mar  09 AM
0
0
Sat, 28 Mar  10 AM
0
0
Sat, 28 Mar  11 AM
0
0
Sat, 28 Mar  12 PM
0
0
Sat, 28 Mar  01 PM
0
0
Sat, 28 Mar  02 PM
0
0
Sat, 28 Mar  03 PM
0
0
Sat, 28 Mar  04 PM
0
0
Sat, 28 Mar  05 PM
0
0
Sat, 28 Mar  06 PM
0
0
Sat, 28 Mar  07 PM
0
0
Sat, 28 Mar  08 PM
0
0
Sat, 28 Mar  09 PM
0
0
Sat, 28 Mar  10 PM
0
0
Sat, 28 Mar  11 PM
0
0
Sun, 29 Mar  12 AM
0
0
Sun, 29 Mar  01 AM
0
0
Sun, 29 Mar  02 AM
0
0
Sun, 29 Mar  03 AM
0
0
Sun, 29 Mar  04 AM
0
0
Sun, 29 Mar  05 AM
0
0
Sun, 29 Mar  06 AM
0
0
Sun, 29 Mar  07 AM
0
0
Sun, 29 Mar  08 AM
0
0
Sun, 29 Mar  09 AM
0
0
Sun, 29 Mar  10 AM
0
0
Sun, 29 Mar  11 AM
0
0
Sun, 29 Mar  12 PM
0
0
Sun, 29 Mar  01 PM
0
0
Sun, 29 Mar  02 PM
0
0
Sun, 29 Mar  03 PM
0
0
Sun, 29 Mar  04 PM
0
0
Sun, 29 Mar  05 PM
0
0
Sun, 29 Mar  06 PM
0
0
Sun, 29 Mar  07 PM
0
0
Sun, 29 Mar  08 PM
0
0
Sun, 29 Mar  09 PM
0
0
Sun, 29 Mar  10 PM
0
0

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