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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  > Rochester Hourly AQI  > Rochester Raw Data

Minnesota Pollution Control Agency
Rochester Hourly Ozone 8 Hour Rolling
May 15, 2012
<< Previous Day Next Day >>
Ozone 8 Hour Rolling
Parts per Million
Sites
Hour5008
0 0.047
1 0.045
2 0.044
3 0.044
4 0.044
5 0.045
6 0.044
7 0.043
8 0.042
9 0.041
10 0.041
11 0.042
12 0.044
13 0.046
14 0.048
15 0.051
16 0.053
17 0.055
18 0.057
19 0.056
20 0.055
21 0.053
22 0.051
23 0.048
Ozone 8 Hour Rolling
AQI
Sites
5008
39
38
37
37
37
38
37
36
35
34
34
35
37
38
40
43
44
46
48
47
46
44
43
40
      

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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