Gary-IITRI

Data time: 11/8/2026 2:00 PM CST
Monitoring Site
Location
Address:
201 Mississippi St. (IITRI Bunker)
City:
Gary
Latitude:
41.606563
Longitude:
-87.305015
Region:
North West
Air Quality Information
Pollutant Concentration Units of Measure
SO2 1-Hour Average 0.6 PPB
NO2 1-Hour Average 3.5 PPB
PM10 24-Hour Average 12 UG/M3
PM2.5 24-Hour Average 3.6 UG/M3
Sensor 24-Hour Average 3.6 UG/M3
Monitored Pollutants
Pollutant Concentration Units of Measure
Black Carbon 0.24 UG/M3
NO2 3.5 PPB
PM10 STD 13.3 UG/M3
PM2.5 3.5 UG/M3
SO2 0.6 PPB
UV Carbon 0.33 UG/M3
Meteorology
Measurement Reading Units of Measure
BP 991.5 mbar
OT 2m 61.5 DEGF
Precip 0 INCHES
RH 2m 43 PERCENT
RWD 260 DEG
RWS 9.2 MPH
SR 270.97 W/M2

Site Details

The Gary IITRI monitoring site began operating in March 1993 (PM10 and Meteorological parameters). Ozone and VOCs were added in July 1995, SO2 in June 1997, NO2 in June 1998, PM2.5 in March 1999 and PM2.5 speciation in April 2005. The monitoring objective is to monitor the ambient air in Gary near the US Steel Steelmill.

Historical Data Concentration