Header

Agency Links
IN.gov Links
Gov. Eric J. Holcomb
Eric J. Holcomb
Governor
Eric J. Holcomb
Visit His Homepage

Peak Daily One-Hour Ozone Averages for November 2020

The table below lists the peak daily one-hour ozone concentrations measured in November 2020 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 SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
North West
Hammond-141st St128273645454545343032302920293326283036282635291Hammond-141st St
Ogden Dunes134323949475350363331313224273231333238332738351Ogden Dunes
Michigan City-W. Michigan Blvd132303846455047353132273224273129313037332535321Michigan City-W. Michigan Blvd
Valparaiso130313948485247343233313322253230313138332434301Valparaiso
Gary-IITRI128303846485047343030313322283229303038302736331Gary-IITRI
LaPorte-E. Lincolnway132303646404944333131333127273129343136342528321LaPorte-E. Lincolnway
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
North Central
South Bend-Shields Dr1293034464149463433342930272631NANANANANANANANA1South Bend-Shields Dr
Bristol131313649425247373433302825263129322936342323301Bristol
Potato Creek State Park127313749435046393333263024243031333037342422311Potato Creek State Park
Granger-Beckley St133333850445451383535323227273329353140362623321Granger-Beckley St
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
North East
Fort Wayne-Beacon St126313547375051413534313325263532343036372523321Fort Wayne-Beacon St
Leo HS1283338504154554123NANANANANANANANANANANANANANA1Leo HS
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
West Central
Terre Haute-Lafayette Ave132344349455248343434293128293534333141372430281Terre Haute-Lafayette Ave
Flora126303749425248353230293323283630293039372227261Flora
Sandcut132354352465651363533293531313635353343392529301Sandcut
West Union133334152455047363530293331323735343241382433291West Union
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
East Central
Emporia1293641504633NANANA32313526273531323137372424261Emporia
Albany127343849415350443433303324253431343037391927181Albany
Indpls-Washington Park127343646415149383330313327233329302836372925281Indpls-Washington Park
Indpls-Harding St129333741405049393127273425253630283235362920271Indpls-Harding St
Indpls-Ft. Harrison127343847415352413530323428243431303036382724281Indpls-Ft. Harrison
Whitestown127353947425350383230283326273330303339382423281Whitestown
Avon129354148465351393233323028263733313240382924291Avon
Fairland131364250445254423830303528263534303239382125251Fairland
Noblesville-191st St126333723NANA50363230313427263430293038392313NA1Noblesville-191st St
Hope132374152455252423933353732333934313340382730301Hope
Indpls - I-70 E125293542404847362928213217223125222735301915171Indpls - I-70 E
Kokomo - E. Vaile Ave.128354050445652383438313426293931343141412625291Kokomo - E. Vaile Ave.
Helmsburg130374449505250393432333631294036333141382724311Helmsburg
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
South West
Boonville137374249465547353430273531424135363239362629321Boonville
Evansville-Buena Vista Rd136374044445447353329293432403934353338362630291Evansville-Buena Vista Rd
Inglefield137374127NANA47353530263128403936343240362531291Inglefield
St. Philips133323642384337302825222726303230312733292328251St. Philips
Leopold134344450455845363433283432444336353140403326291Leopold
Dayville138394244425346363329303432413835363338372331311Dayville
Plummer133394348485349403632293731374135363342362831301Plummer
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
1234567891011121314151617181920212223
South East
New Albany13637421NANA44483530343037214134392937382529311New Albany
Charlestown State Park134363951395647443934323236354334383137372728311Charlestown 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.