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Air Quality Index

AQI Locations:

Rochester
Brainerd
Duluth
Ely
St Cloud
Twin Cities
Marshall
Detroit Lakes

Sign up for air quality alerts and forecasts

Call the AQI Hotline for daily air quality forecasts for the Twin Cities and Rochester at 651-297-1630 (metro) or 1-800-657-3694.

PDF DocumentAQI Site Help

About the AQI

Pollutant description

Health effects

Cautionary Statements

Breakpoints

Map of Air Quality Stations

Color Legend:
Good 0-50
Moderate 51-100
Unhealthy for Sensitive Groups 101-150
Unhealthy 151-200
Very Unhealthy 201-300

MPCA Home  > Air Quality Index  > St Cloud Hourly AQI  > St Cloud Raw Data

Minnesota Pollution Control Agency
St Cloud Hourly Ozone 8 Hour Rolling
April 29, 2012
<< Previous Day Next Day >>
Ozone 8 Hour Rolling
Parts per Million
Sites
Hour3052
0 0.042
1 0.041
2 0.040
3 0.039
4 0.039
5 0.037
6 0.037
7 0.036
8 0.036
9 0.036
10 0.037
11 0.038
12 0.040
13 0.043
14 0.045
15 0.047
16 0.049
17 0.050
18 0.051
19 0.051
20 0.051
21 0.049
22 0.048
23 0.046
Ozone 8 Hour Rolling
AQI
Sites
3052
35
34
33
33
33
31
31
30
30
30
31
32
33
36
38
39
41
42
43
43
43
41
40
38
      

This page was last updated September 8, 2003

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Minnesota Pollution Control Agency, 520 Lafayette Road, St. Paul, MN 55155-4194
Phone: 651-296-6300, 800-657-3864; 24-hour emergency number: 651-649-5451 or 800-422-0798; TTY: 651-282-5332, TTY 24-hour emergency number: 651-297-5353 or 800-627-3529

 

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