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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
Minnesota Pollution Control Agency
St Cloud Hourly Particulate Matter (PM 2.5)

April 29, 2012
<< Previous Day Next Day >>
Particulate Matter (PM 2.5)
Micrograms per cubic meter
Sites
Hour3052
0 6.000
1 7.000
2 8.000
3 8.000
4 9.000
5 9.000
6 9.000
7 9.000
8 10.000
9 10.000
10 11.000
11 11.000
12 11.000
13 12.000
14 12.000
15 13.000
16 13.000
17 14.000
18 14.000
19 14.000
20 14.000
21 14.000
22 14.000
23 14.000
Particulate Matter (PM 2.5)
AQI
Sites
3052
19
22
25
25
29
29
29
29
32
32
35
35
35
38
38
42
42
45
45
45
45
45
45
45
      

 

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