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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  > Duluth Hourly AQI  > Duluth Raw Data

Minnesota Pollution Control Agency
Duluth Hourly Carbon Monoxide (CO)
May 05, 2012
<< Previous Day Next Day >>
Carbon Monoxide (CO)
Parts per Million
Sites
Hour7526
0 0.000
1 0.000
2 0.000
3 0.000
4 0.000
5 0.000
6 0.000
7 0.000
8 0.000
9 0.000
10 0.000
11 0.100
12 0.100
13 0.100
14 0.100
15 0.100
16 0.100
17 0.100
18 0.000
19 0.000
20 0.000
21 0.000
22 0.000
23 0.000
Carbon Monoxide (CO)
AQI
Sites
7526
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
      

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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