Air Quality Forecast Guidance for Darien, CT

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 41.05 N, longitude: 73.48 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 07/08, 4Z)
62
56
*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, 07 Jul  01 PM
56
31
Thu, 07 Jul  02 PM
59
37
Thu, 07 Jul  03 PM
62
43
Thu, 07 Jul  04 PM
61
48
Thu, 07 Jul  05 PM
57
52
Thu, 07 Jul  06 PM
53
54
Thu, 07 Jul  07 PM
50
56
Thu, 07 Jul   08 PM
48
56
Thu, 07 Jul   09 PM
43
54
Thu, 07 Jul   10 PM
40
52
Thu, 07 Jul   11 PM
39
49
Fri, 08 Jul   12 AM
36
46
Fri, 08 Jul   01 AM
33
43
Fri, 08 Jul   02 AM
35
40
Fri, 08 Jul   03 AM
30
38
Fri, 08 Jul   04 AM
27
35
Fri, 08 Jul   05 AM
28
33
Fri, 08 Jul   06 AM
26
32
Fri, 08 Jul   07 AM
24
30
Fri, 08 Jul   08 AM
27
29
Fri, 08 Jul   09 AM
32
28
Fri, 08 Jul   10 AM
37
29
Fri, 08 Jul   11 AM
44
31
Fri, 08 Jul   12 PM
54
34
Fri, 08 Jul   01 PM
66
39
Fri, 08 Jul   02 PM
71
44
Fri, 08 Jul   03 PM
72
50
Fri, 08 Jul   04 PM
70
56
Fri, 08 Jul   05 PM
77
61
Fri, 08 Jul   06 PM
78
66
Fri, 08 Jul   07 PM
63
69
Fri, 08 Jul   08 PM
50
68
Fri, 08 Jul   09 PM
42
65
Fri, 08 Jul   10 PM
37
61
Fri, 08 Jul   11 PM
33
56
Sat, 09 Jul   12 AM
27
51
Sat, 09 Jul   01 AM
19
44
Sat, 09 Jul   02 AM
20
37
Sat, 09 Jul   03 AM
15
30
Sat, 09 Jul   04 AM
14
26
Sat, 09 Jul   05 AM
15
23
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, 07 Jul  01 PM
0
0
Thu, 07 Jul  02 PM
0
0
Thu, 07 Jul  03 PM
0
0
Thu, 07 Jul  04 PM
0
0
Thu, 07 Jul  05 PM
0
0
Thu, 07 Jul  06 PM
0
0
Thu, 07 Jul  07 PM
0
0
Thu, 07 Jul  08 PM
0
0
Thu, 07 Jul  09 PM
0
0
Thu, 07 Jul  10 PM
0
0
Thu, 07 Jul  11 PM
0
0
Fri, 08 Jul  12 AM
0
0
Fri, 08 Jul  01 AM
0
0
Fri, 08 Jul  02 AM
0
0
Fri, 08 Jul  03 AM
0
0
Fri, 08 Jul  04 AM
0
0
Fri, 08 Jul  05 AM
0
0
Fri, 08 Jul  06 AM
0
0
Fri, 08 Jul  07 AM
0
0
Fri, 08 Jul  08 AM
0
0
Fri, 08 Jul  09 AM
0
0
Fri, 08 Jul  10 AM
0
0
Fri, 08 Jul  11 AM
0
0
Fri, 08 Jul  12 PM
0
0
Fri, 08 Jul  01 PM
0
0
Fri, 08 Jul  02 PM
0
0
Fri, 08 Jul  03 PM
0
0
Fri, 08 Jul  04 PM
0
0
Fri, 08 Jul  05 PM
0
0
Fri, 08 Jul  06 PM
0
0
Fri, 08 Jul  07 PM
0
0
Fri, 08 Jul  08 PM
0
0
Fri, 08 Jul  09 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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