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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 03, 2012
<< Previous Day Next Day >>
Ozone 8 Hour Rolling
Parts per Million
Sites
Hour5008
0 0.039
1 0.035
2 0.031
3 0.028
4 0.024
5 0.019
6 0.018
7 0.019
8 0.022
9 0.026
10 0.031
11 0.036
12 0.042
13 0.050
14 0.053
15 0.056
16 0.057
17 0.057
18 0.054
19 0.051
20 0.049
21 0.046
22 0.041
23 0.037
Ozone 8 Hour Rolling
AQI
Sites
5008
33
29
26
23
20
16
15
16
18
22
26
30
35
42
44
47
48
48
45
43
41
38
34
31
      

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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