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Peak Daily One-Hour Ozone Averages for January 2022

The table below lists the peak daily one-hour ozone concentrations measured in January 2022 in each community where the IDEM measures ozone. Concentrations are color-highlighted based on the EPA-defined Air Quality Index colors. (See Interpreting the AQI.) All ozone measurements are in parts per billion, and are truncated to an integer number.

The values that go into this table are calculated at 3:30 am each morning. Therefore, the current day will almost always have very low hourly averages that are not truly representative of local conditions for the day. Because of this, the report does not display the current day's data.

Use the selection boxes below to customize this report. You may select a different month, a different year, a different report format, and whether or not to include time on the report. Click on the Generate Report button once you have made your selections.

Month:Year:Report Format: Include time:
Include time
Highlight using AQI colors
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
North West
Hammond-141st St133376NANANANANANANANANANANANANANANANA1Hammond-141st St
Ogden Dunes13438NANANANANANANANANANANANANANANANANA1Ogden Dunes
Michigan City-W. Michigan Blvd1323633NANANANANANANANANANANANANANANANA1Michigan City-W. Michigan Blvd
Valparaiso132368NANANANANANANANANANANANANANANANA1Valparaiso
Gary-IITRI136402NANANANANANANANANANANANANANANANA1Gary-IITRI
LaPorte-E. Lincolnway1323628NANANANANANANANANANANANANANANANA1LaPorte-E. Lincolnway
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
North Central
South Bend-Shields Dr1333832NANANANANANANANANANANANANANANANA1South Bend-Shields Dr
Bristol1323932NANANANANANANANANANANANANANANANA1Bristol
Potato Creek State Park1313835NANANANANANANANANANANANANANANANA1Potato Creek State Park
Granger-Beckley St1333931NANANANANANANANANANANANANANANANA1Granger-Beckley St
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
North East
Leo HS1313630NANANANANANANANANANANANANANANANA1Leo HS
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
West Central
Terre Haute-Lafayette Ave1253331NANANANANANANANANANANANANANANANA1Terre Haute-Lafayette Ave
Flora1273633NANANANANANANANANANANANANANANANA1Flora
Sandcut1253534NANANANANANANANANANANANANANANANA1Sandcut
West Union1253132NANANANANANANANANANANANANANANANA1West Union
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
East Central
Anderson-Eastside Elem. School2243535NANANANANANANANANANANANANANANANA2Anderson-Eastside Elem. School
Albany1243435NANANANANANANANANANANANANANANANA1Albany
Indpls-Washington Park1253433NANANANANANANANANANANANANANANANA1Indpls-Washington Park
Indpls-Harding St1263532NANANANANANANANANANANANANANANANA1Indpls-Harding St
Indpls-Ft. Harrison1233532NANANANANANANANANANANANANANANANA1Indpls-Ft. Harrison
Whitestown1223637NANANANANANANANANANANANANANANANA1Whitestown
Avon1253535NANANANANANANANANANANANANANANANA1Avon
Fairland1283331NANANANANANANANANANANANANANANANA1Fairland
Noblesville-191st St1223533NANANANANANANANANANANANANANANANA1Noblesville-191st St
Hope1283534NANANANANANANANANANANANANANANANA1Hope
Indpls - I-70 E1253129NANANANANANANANANANANANANANANANA1Indpls - I-70 E
Kokomo - E. Vaile Ave.1253735NANANANANANANANANANANANANANANANA1Kokomo - E. Vaile Ave.
Helmsburg1283435NANANANANANANANANANANANANANANANA1Helmsburg
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
South West
Boonville1313535NANANANANANANANANANANANANANANANA1Boonville
Evansville-Buena Vista Rd1243030NANANANANANANANANANANANANANANANA1Evansville-Buena Vista Rd
Inglefield1293333NANANANANANANANANANANANANANANANA1Inglefield
St. Philips1243027NANANANANANANANANANANANANANANANA1St. Philips
Leopold1343435NANANANANANANANANANANANANANANANA1Leopold
Dayville1303635NANANANANANANANANANANANANANANANA1Dayville
Plummer1273736NANANANANANANANANANANANANANANANA1Plummer
AreaMonitoring SitePOCJanuary 2022POCMonitoring Site
12345678910111213141516171819
South East
New Albany1273434NANANANANANANANANANANANANANANANA1New Albany
Charlestown State Park1313536NANANANANANANANANANANANANANANANA1Charlestown State Park
NA - Data not available.

Interpreting the AQI

Air Quality Index

Each NAAQS pollutant has a separate AQI scale, with an AQI rating of 100 corresponding to the concentration of the Federal Standard for that pollutant. Additional information about the AQI and how it can be used is available from the EPA's AirNow web site.

Place your mouse pointer over the scale displayed above to view information about the Air Quality Index, and each of the rating levels.

The actual index calculation is different for each parameter measured and is specified by the EPA. The following table shows the various breakpoints used in calculating the AQI.

AQI Breakpoint Definitions
AQI Range 1hr Ozone
in ppm
8hr Ozone
in ppm
0 - 50 Not Defined 0 - 0.054
51 - 100 Not Defined 0.055 - 0.070
101 - 150 0.125 - 0.164 0.071 - 0.085
151 - 200 0.165 - 0.204 0.086 - 0.105
201 - 300 0.205 - 0.404 0.106 - 0.200
301 - 400 0.405 - 0.504 0.201 - 0.2011
401 - 500 0.505 - 0.604 Not Defined
500+ Not Defined Not Defined

PLEASE NOTE: This data has not been verified by the IDEM and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from IDEM ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.