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)
57
53
*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
Thu, 23 Sep  02 PM
50
38
Thu, 23 Sep  03 PM
54
41
Thu, 23 Sep  04 PM
56
44
Thu, 23 Sep   05 PM
57
48
Thu, 23 Sep   06 PM
57
52
Thu, 23 Sep   07 PM
53
53
Thu, 23 Sep   08 PM
49
53
Thu, 23 Sep   09 PM
48
53
Thu, 23 Sep   10 PM
43
52
Thu, 23 Sep   11 PM
45
51
Fri, 24 Sep   12 AM
43
49
Fri, 24 Sep   01 AM
40
47
Fri, 24 Sep   02 AM
40
45
Fri, 24 Sep   03 AM
38
43
Fri, 24 Sep   04 AM
36
42
Fri, 24 Sep   05 AM
35
40
Fri, 24 Sep   06 AM
36
39
Fri, 24 Sep   07 AM
33
38
Fri, 24 Sep   08 AM
33
37
Fri, 24 Sep   09 AM
27
35
Fri, 24 Sep   10 AM
34
34
Fri, 24 Sep   11 AM
44
35
Fri, 24 Sep   12 PM
50
37
Fri, 24 Sep   01 PM
55
39
Fri, 24 Sep   02 PM
55
41
Fri, 24 Sep   03 PM
53
44
Fri, 24 Sep   04 PM
53
46
Fri, 24 Sep   05 PM
57
50
Fri, 24 Sep   06 PM
62
54
Fri, 24 Sep   07 PM
62
56
Fri, 24 Sep   08 PM
57
57
Fri, 24 Sep   09 PM
52
56
Fri, 24 Sep   10 PM
43
55
Fri, 24 Sep   11 PM
41
53
Sat, 25 Sep   12 AM
36
51
Sat, 25 Sep   01 AM
33
48
Sat, 25 Sep   02 AM
31
44
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 23 Sep  02 PM
42
38
Thu, 23 Sep  03 PM
9
21
Thu, 23 Sep  04 PM
3
6
Thu, 23 Sep  05 PM
0
2
Thu, 23 Sep  06 PM
0
1
Thu, 23 Sep  07 PM
0
1
Thu, 23 Sep  08 PM
0
1
Thu, 23 Sep  09 PM
8
3
Thu, 23 Sep  10 PM
184
7
Thu, 23 Sep  11 PM
466
18
Fri, 24 Sep  12 AM
112
10
Fri, 24 Sep  01 AM
13
6
Fri, 24 Sep  02 AM
0
2
Fri, 24 Sep  03 AM
0
2
Fri, 24 Sep  04 AM
0
8
Fri, 24 Sep  05 AM
339
23
Fri, 24 Sep  06 AM
411
24
Fri, 24 Sep  07 AM
355
17
Fri, 24 Sep  08 AM
244
13
Fri, 24 Sep  09 AM
254
13
Fri, 24 Sep  10 AM
139
11
Fri, 24 Sep  11 AM
19
6
Fri, 24 Sep  12 PM
0
4
Fri, 24 Sep  01 PM
5
2
Fri, 24 Sep  02 PM
5
3
Fri, 24 Sep  03 PM
17
4
Fri, 24 Sep  04 PM
0
7
Fri, 24 Sep  05 PM
28
12
Fri, 24 Sep  06 PM
0
20
Fri, 24 Sep  07 PM
0
23
Fri, 24 Sep  08 PM
0
28
Fri, 24 Sep  09 PM
0
13
Fri, 24 Sep  10 PM
0
4

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


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