000
AEUS73 KILX 042130
AQIILX

DAILY AQI REPORT
ILLINOIS ENVIRONMENTAL PROTECTI0N AGENCY...SPRINGFIELD, IL
3PM CDT THURSDAY SEPTEMBER 4 2008

THIS IS THE AIR QUALITY INDEX..AQI..REPORT FOR THE CHICAGO
METROPOLITAN AREA ENDING AT 3PM TODAY...

                AQI    DESCRIPTOR       CRITICAL          TOMORROW
    SECTOR     VALUE    CATEGORY        POLLUTANT         FORECAST

LAKE COUNTY      14       GOOD            OZONE             GOOD

CHICAGO          19       GOOD         PARTICULATES         GOOD

SOUTH & WEST
SUBURBS          18       GOOD         PARTICUALTES         GOOD

NORTH & WEST
SUBURBS          13       GOOD            OZONE             GOOD

AURORA-ELGIN      9       GOOD         PARTICULATES         GOOD

JOLIET/WILL
COUNTY           13       GOOD         PARTICULATES         GOOD

THESE ARE THE AQI REPORTS FOR OTHER METROPOLITAN AREAS
ENDING AT 4PM TODAY...

ROCKFORD          9       GOOD         PARTICULATES         GOOD

QUAD CITIES      11       GOOD            OZONE             GOOD

PEORIA           23       GOOD         PARTICULATES         GOOD

CHAMPAIGN/
URBANA           44       GOOD         PARTICULATES         GOOD

BLOOMINGTON/
NORMAL           44       GOOD         PARTICULATES         GOOD

DECATUR          44       GOOD         PARTICULATES         GOOD

SPRINGFIELD      44       GOOD         PARTICULATES         GOOD

METRO EAST
ST LOUIS         37       GOOD         PARTICULATES         GOOD

AQI RANGES AND DESCRIPTOR CATEGORIES...
0 TO 50...GOOD    51 TO 100...MODERATE    101 TO 150...UNHEALTHY FOR
SENSITIVE GROUPS    151 TO 200...UNHEALTHY   201 TO 300...VERY UNHEALTHY
301 TO 500...HAZARDOUS

FOR FURTHER INFORMATION CONTACT THE ILLINOIS EPA AT 217 785 1729
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