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Particulate Matter(PM) Air Monitoring

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The Department operates an air-monitoring network for sulfur dioxide, nitrous oxides, ozone, carbon monoxide, metals, sulfates, nitrates and toxic air pollutants. This network includes 18 continuous sites, 17 non-continuous sites and 1 special project air toxic monitoring site. These sites are located throughout Cook County, including in the City of Chicago.

 

Continuous site data is pulled every hour and stored at the Department’s computer in Maywood. Daily average readings can be accessed by the public through recorded messages, which are translated to an Air Quality Index (AQI).

You can call for the AQI Report at (708)865-6320.

Additional information on particulate matter and the ozone can be reviewed through the links below:
Agency Contact Information Portlet  
Contact Information
Contact Information

Bureau Name:

Administration, Bureau of

Main Office:

69 W. Washington Room 1900
Chicago, Illinois 60602

Telephone: (312) 603-8200
Fax: (312) 603-9828

Director:
Deborah Stone, Director and Chief Sustainability Officer

Hours:
M-F: 8:30 am to 4:30 pm
closed weekends