Air Quality Forecast Guidance for Catonsville, MD

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 39.26 N, longitude: 76.74 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 /, 4Z)
0
0
*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
Sat, 02 Jul  08 PM
58
0
Sat, 02 Jul  09 PM
57
0
Sat, 02 Jul  10 PM
46
0
Sat, 02 Jul  11 PM
41
0
Sun, 03 Jul  12 AM
35
0
Sun, 03 Jul  01 AM
28
0
Sun, 03 Jul  02 AM
24
0
Sun, 03 Jul  03 AM
19
0
Sun, 03 Jul  04 AM
16
0
Sun, 03 Jul  05 AM
18
0
Sun, 03 Jul  06 AM
17
0
Sun, 03 Jul  07 AM
13
0
Sun, 03 Jul  08 AM
12
0
Sun, 03 Jul  09 AM
15
0
Sun, 03 Jul  10 AM
17
0
Sun, 03 Jul  11 AM
18
0
Sun, 03 Jul  12 PM
24
0
Sun, 03 Jul  01 PM
40
0
Sun, 03 Jul  02 PM
50
0
Sun, 03 Jul  03 PM
52
0
Sun, 03 Jul  04 PM
50
0
Sun, 03 Jul  05 PM
48
0
Sun, 03 Jul  06 PM
45
0
Sun, 03 Jul  07 PM
43
0
Sun, 03 Jul   08 PM
40
Sun, 03 Jul   09 PM
32
Sun, 03 Jul   10 PM
31
Sun, 03 Jul   11 PM
34
Mon, 04 Jul   12 AM
32
Mon, 04 Jul   01 AM
25
Mon, 04 Jul   02 AM
22
Mon, 04 Jul   03 AM
21
Mon, 04 Jul   04 AM
19
Mon, 04 Jul   05 AM
17
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run

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


    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities