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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
April 29, 2012
<< Previous Day Next Day >>
Ozone
Parts per Million
Sites
Hour3052
0 0.040
1 0.037
2 0.037
3 0.038
4 0.036
5 0.031
6 0.033
7 0.036
8 0.038
9 0.038
10 0.044
11 0.048
12 0.053
13 0.052
14 0.054
15 0.051
16 0.049
17 0.050
18 0.051
19 0.050
20 0.047
21 0.042
22 0.039
23 0.043
Ozone
AQI
Sites
3052
31
28
28
29
28
24
25
28
29
29
34
37
41
40
42
39
38
39
39
39
36
32
30
33
      

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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