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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  > Ely Hourly AQI  > Ely Raw Data

Minnesota Pollution Control Agency
Ely Hourly Ozone
May 06, 2012
<< Previous Day Next Day >>
Ozone
Parts per Million
Sites
Hour7001
0 0.032
1 0.032
2 0.030
3 0.029
4 0.028
5 0.028
6 0.030
7 0.033
8 0.036
9 0.039
10 0.041
11 0.043
12 0.044
13 0.046
14 0.047
15 0.049
16 0.050
17 0.051
18 0.053
19 0.051
20 0.044
21 0.039
22 0.042
23 0.043
Ozone
AQI
Sites
7001
25
25
23
22
21
21
23
25
28
30
32
33
34
35
36
38
39
39
41
39
34
30
32
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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