Minnesota Pollution Control Agency Logo  Minnesota Pollution Control Agency
  
  Home   |  Site Index   |  Glossary  |  What's New  |  Ask MPCA   |   Visitor Center  

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 01, 2012
<< Previous Day Next Day >>
Ozone 8 Hour Rolling
Parts per Million
Sites
Hour5008
0 0.034
1 0.032
2 0.030
3 0.029
4 0.028
5 0.028
6 0.029
7 0.028
8 0.028
9 0.028
10 0.028
11 0.029
12 0.031
13 0.033
14 0.036
15 0.039
16 0.041
17 0.043
18 0.044
19 0.045
20 0.045
21 0.044
22 0.042
23 0.040
Ozone 8 Hour Rolling
AQI
Sites
5008
28
27
25
24
23
23
24
23
23
23
23
24
26
27
30
33
34
36
37
38
38
37
35
33
      

This page was last updated September 8, 2003

If you have suggestions on how we can improve this site, or if you have questions or problems, please contact us.
If you have technical questions or problems with this site, contact webmaster@pca.state.mn.us
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

 

web2