Air Quality Forecast Guidance for Ridgefield, CT

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 41.27 N, longitude: 73.50 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 05/17, 4Z)
54
49
*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
Sun, 16 May  10 PM
32
45
Sun, 16 May  11 PM
25
42
Mon, 17 May  12 AM
20
38
Mon, 17 May  01 AM
17
35
Mon, 17 May  02 AM
33
34
Mon, 17 May  03 AM
14
30
Mon, 17 May  04 AM
12
25
Mon, 17 May  05 AM
12
20
Mon, 17 May  06 AM
10
18
Mon, 17 May  07 AM
14
16
Mon, 17 May  08 AM
12
15
Mon, 17 May  09 AM
17
16
Mon, 17 May  10 AM
25
15
Mon, 17 May  11 AM
42
18
Mon, 17 May  12 PM
49
23
Mon, 17 May  01 PM
52
28
Mon, 17 May  02 PM
56
33
Mon, 17 May  03 PM
61
39
Mon, 17 May  04 PM
66
46
Mon, 17 May  05 PM
68
52
Mon, 17 May  06 PM
64
57
Mon, 17 May  07 PM
54
59
Mon, 17 May   08 PM
44
58
Mon, 17 May   09 PM
38
56
Mon, 17 May   10 PM
29
53
Mon, 17 May   11 PM
23
48
Tue, 18 May   12 AM
17
42
Tue, 18 May   01 AM
11
35
Tue, 18 May   02 AM
10
28
Tue, 18 May   03 AM
11
23
Tue, 18 May   04 AM
18
20
Tue, 18 May   05 AM
15
17
Tue, 18 May   06 AM
16
15
Tue, 18 May   07 AM
18
14
Tue, 18 May   08 AM
25
15
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sun, 16 May  10 PM
0
0
Sun, 16 May  11 PM
0
0
Mon, 17 May  12 AM
0
0
Mon, 17 May  01 AM
0
0
Mon, 17 May  02 AM
0
0
Mon, 17 May  03 AM
0
0
Mon, 17 May  04 AM
0
0
Mon, 17 May  05 AM
0
0
Mon, 17 May  06 AM
0
0
Mon, 17 May  07 AM
0
0
Mon, 17 May  08 AM
0
0
Mon, 17 May  09 AM
0
0
Mon, 17 May  10 AM
0
0
Mon, 17 May  11 AM
0
0
Mon, 17 May  12 PM
0
0
Mon, 17 May  01 PM
0
0
Mon, 17 May  02 PM
0
0
Mon, 17 May  03 PM
0
0
Mon, 17 May  04 PM
0
0
Mon, 17 May  05 PM
0
0
Mon, 17 May  06 PM
0
0
Mon, 17 May  07 PM
0
0
Mon, 17 May  08 PM
0
0
Mon, 17 May  09 PM
0
0
Mon, 17 May  10 PM
0
0
Mon, 17 May  11 PM
0
0
Tue, 18 May  12 AM
0
0
Tue, 18 May  01 AM
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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