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Air Quality Forecast Guidance for Placerville, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.73 N, longitude: 120.80 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 09/24, 4Z)
54
52
*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
Tue, 23 Sep  05 PM
53
50
Tue, 23 Sep  06 PM
54
52
Tue, 23 Sep  07 PM
54
52
Tue, 23 Sep  08 PM
50
52
Tue, 23 Sep  09 PM
47
52
Tue, 23 Sep  10 PM
43
51
Tue, 23 Sep  11 PM
40
49
Wed, 24 Sep  12 AM
39
48
Wed, 24 Sep  01 AM
39
46
Wed, 24 Sep  02 AM
40
44
Wed, 24 Sep  03 AM
40
42
Wed, 24 Sep  04 AM
40
41
Wed, 24 Sep  05 AM
39
40
Wed, 24 Sep  06 AM
39
40
Wed, 24 Sep  07 AM
37
39
Wed, 24 Sep  08 AM
36
39
Wed, 24 Sep  09 AM
41
39
Wed, 24 Sep  10 AM
48
40
Wed, 24 Sep  11 AM
51
41
Wed, 24 Sep  12 PM
52
43
Wed, 24 Sep  01 PM
51
44
Wed, 24 Sep  02 PM
51
46
Wed, 24 Sep  03 PM
50
48
Wed, 24 Sep  04 PM
50
49
Wed, 24 Sep   05 PM
52
51
Wed, 24 Sep   06 PM
54
51
Wed, 24 Sep   07 PM
54
52
Wed, 24 Sep   08 PM
50
52
Wed, 24 Sep   09 PM
45
51
Wed, 24 Sep   10 PM
40
50
Wed, 24 Sep   11 PM
37
48
Thu, 25 Sep   12 AM
35
46
Thu, 25 Sep   01 AM
35
44
Thu, 25 Sep   02 AM
35
41
Thu, 25 Sep   03 AM
36
39
Thu, 25 Sep   04 AM
35
37
Thu, 25 Sep   05 AM
32
36
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Tue, 23 Sep  05 PM
0
0
Tue, 23 Sep  06 PM
0
0
Tue, 23 Sep  07 PM
0
0
Tue, 23 Sep  08 PM
0
4
Tue, 23 Sep  09 PM
0
100
Tue, 23 Sep  10 PM
0
158
Tue, 23 Sep  11 PM
0
40
Wed, 24 Sep  12 AM
16
25
Wed, 24 Sep  01 AM
63
16
Wed, 24 Sep  02 AM
63
6
Wed, 24 Sep  03 AM
63
6
Wed, 24 Sep  04 AM
63
4
Wed, 24 Sep  05 AM
63
6
Wed, 24 Sep  06 AM
40
16
Wed, 24 Sep  07 AM
40
25
Wed, 24 Sep  08 AM
25
16
Wed, 24 Sep  09 AM
10
25
Wed, 24 Sep  10 AM
6
10
Wed, 24 Sep  11 AM
40
6
Wed, 24 Sep  12 PM
0
0
Wed, 24 Sep  01 PM
0
0
Wed, 24 Sep  02 PM
0
0
Wed, 24 Sep  03 PM
0
0
Wed, 24 Sep  04 PM
0
0
Wed, 24 Sep  05 PM
0
0
Wed, 24 Sep  06 PM
0
0
Wed, 24 Sep  07 PM
0
25
Wed, 24 Sep  08 PM
0
251
Wed, 24 Sep  09 PM
0
158
Wed, 24 Sep  10 PM
0
63

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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