Air Quality Forecast Guidance for Concord, CA

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 37.96 N, longitude: 121.99 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 09/29, 4Z)
42
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
Thu, 28 Sep  07 AM
13
19
Thu, 28 Sep  08 AM
10
18
Thu, 28 Sep  09 AM
14
16
Thu, 28 Sep  10 AM
19
16
Thu, 28 Sep  11 AM
24
16
Thu, 28 Sep  12 PM
28
18
Thu, 28 Sep  01 PM
31
20
Thu, 28 Sep  02 PM
34
22
Thu, 28 Sep  03 PM
36
25
Thu, 28 Sep  04 PM
40
28
Thu, 28 Sep   05 PM
42
32
Thu, 28 Sep   06 PM
42
35
Thu, 28 Sep   07 PM
37
36
Thu, 28 Sep   08 PM
27
36
Thu, 28 Sep   09 PM
22
35
Thu, 28 Sep   10 PM
22
34
Thu, 28 Sep   11 PM
19
31
Fri, 29 Sep   12 AM
15
28
Fri, 29 Sep   01 AM
14
25
Fri, 29 Sep   02 AM
14
21
Fri, 29 Sep   03 AM
15
19
Fri, 29 Sep   04 AM
10
16
Fri, 29 Sep   05 AM
15
16
Fri, 29 Sep   06 AM
16
15
Fri, 29 Sep   07 AM
15
14
Fri, 29 Sep   08 AM
14
14
Fri, 29 Sep   09 AM
17
15
Fri, 29 Sep   10 AM
23
16
Fri, 29 Sep   11 AM
27
17
Fri, 29 Sep   12 PM
32
20
Fri, 29 Sep   01 PM
34
22
Fri, 29 Sep   02 PM
34
25
Fri, 29 Sep   03 PM
35
27
Fri, 29 Sep   04 PM
32
29
Fri, 29 Sep   05 PM
27
30
Fri, 29 Sep   06 PM
27
31
Fri, 29 Sep   07 PM
27
31
Fri, 29 Sep   08 PM
25
30
Fri, 29 Sep   09 PM
24
29
Fri, 29 Sep   10 PM
22
27
Fri, 29 Sep   11 PM
22
26
Sat, 30 Sep   12 AM
22
25
Sat, 30 Sep   01 AM
24
24
Sat, 30 Sep   02 AM
26
24
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, 28 Sep  05 AM
0
0
Thu, 28 Sep  06 AM
0
0
Thu, 28 Sep  07 AM
0
0
Thu, 28 Sep  08 AM
0
0
Thu, 28 Sep  09 AM
0
0
Thu, 28 Sep  10 AM
0
0
Thu, 28 Sep  11 AM
0
0
Thu, 28 Sep  12 PM
0
0
Thu, 28 Sep  01 PM
0
0
Thu, 28 Sep  02 PM
0
0
Thu, 28 Sep  03 PM
0
0
Thu, 28 Sep  04 PM
0
0
Thu, 28 Sep  05 PM
0
0
Thu, 28 Sep  06 PM
0
0
Thu, 28 Sep  07 PM
0
0
Thu, 28 Sep  08 PM
0
0
Thu, 28 Sep  09 PM
0
0
Thu, 28 Sep  10 PM
0
0
Thu, 28 Sep  11 PM
0
0
Fri, 29 Sep  12 AM
0
0
Fri, 29 Sep  01 AM
0
0
Fri, 29 Sep  02 AM
0
0
Fri, 29 Sep  03 AM
0
0
Fri, 29 Sep  04 AM
0
0
Fri, 29 Sep  05 AM
0
0
Fri, 29 Sep  06 AM
0
0
Fri, 29 Sep  07 AM
0
0
Fri, 29 Sep  08 AM
0
0
Fri, 29 Sep  09 AM
0
0
Fri, 29 Sep  10 AM
0
0
Fri, 29 Sep  11 AM
0
0
Fri, 29 Sep  12 PM
0
0
Fri, 29 Sep  01 PM
0
0
Fri, 29 Sep  02 PM
0
0
Fri, 29 Sep  03 PM
0
0
Fri, 29 Sep  04 PM
0
0
Fri, 29 Sep  05 PM
0
0
Fri, 29 Sep  06 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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