Air Quality Forecast Guidance for Glenn Dale, MD

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.02 N, longitude: 76.83 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 05/18, 4Z)
53
51
*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
Wed, 18 May  05 AM
20
31
Wed, 18 May  06 AM
18
28
Wed, 18 May  07 AM
17
26
Wed, 18 May  08 AM
25
24
Wed, 18 May  09 AM
30
24
Wed, 18 May  10 AM
36
25
Wed, 18 May  11 AM
38
26
Wed, 18 May  12 PM
40
28
Wed, 18 May  01 PM
41
31
Wed, 18 May  02 PM
46
34
Wed, 18 May  03 PM
50
38
Wed, 18 May  04 PM
53
42
Wed, 18 May  05 PM
55
45
Wed, 18 May  06 PM
54
47
Wed, 18 May  07 PM
47
48
Wed, 18 May   08 PM
42
49
Wed, 18 May   09 PM
37
48
Wed, 18 May   10 PM
33
47
Wed, 18 May   11 PM
36
45
Thu, 19 May   12 AM
36
43
Thu, 19 May   01 AM
33
40
Thu, 19 May   02 AM
33
37
Thu, 19 May   03 AM
33
36
Thu, 19 May   04 AM
33
34
Thu, 19 May   05 AM
28
33
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)
06Z Model Run
Wed, 18 May  05 AM
0
0
Wed, 18 May  06 AM
0
0
Wed, 18 May  07 AM
0
0
Wed, 18 May  08 AM
0
0
Wed, 18 May  09 AM
0
0
Wed, 18 May  10 AM
0
0
Wed, 18 May  11 AM
0
0
Wed, 18 May  12 PM
0
0
Wed, 18 May  01 PM
0
0
Wed, 18 May  02 PM
0
0
Wed, 18 May  03 PM
0
0
Wed, 18 May  04 PM
0
0
Wed, 18 May  05 PM
0
0
Wed, 18 May  06 PM
0
0
Wed, 18 May  07 PM
0
0
Wed, 18 May  08 PM
0
0
Wed, 18 May  09 PM
0
0
Wed, 18 May  10 PM
0
0
Wed, 18 May  11 PM
0
1
Thu, 19 May  12 AM
0
2
Thu, 19 May  01 AM
0
1
National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ

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