NOAA - National Weather Service/Environmental Protection Agency

Air Quality Forecast Guidance for St. Peters, MO

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 38.78 N, longitude: 90.61 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 09/28, 4Z)	58	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
Thu, 28 Sep 05 AM	14	21
Thu, 28 Sep 06 AM	9	18
Thu, 28 Sep 07 AM	4	15
Thu, 28 Sep 08 AM	5	13
Thu, 28 Sep 09 AM	7	11
Thu, 28 Sep 10 AM	13	11
Thu, 28 Sep 11 AM	26	12
Thu, 28 Sep 12 PM	37	14
Thu, 28 Sep 01 PM	44	18
Thu, 28 Sep 02 PM	47	23
Thu, 28 Sep 03 PM	56	29
Thu, 28 Sep 04 PM	62	36
Thu, 28 Sep 05 PM	63	43
Thu, 28 Sep 06 PM	66	50
Thu, 28 Sep 07 PM	59	54
Thu, 28 Sep 08 PM	52	56
Thu, 28 Sep 09 PM	44	56
Thu, 28 Sep 10 PM	39	55
Thu, 28 Sep 11 PM	32	52
Fri, 29 Sep 12 AM	28	48
Fri, 29 Sep 01 AM	24	43
Fri, 29 Sep 02 AM	24	38
Fri, 29 Sep 03 AM	32	34
Fri, 29 Sep 04 AM	30	32

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


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