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Daily Maximum Eight-Hour Ozone Averages for November 2020

The table below lists the peak daily maximum eight-hour ozone concentrations measured in November 2020 in each community where the IDEM measures ozone. Concentrations that are rated Moderate or higher are color-highlighted based on the EPA-defined Air Quality Index colors. (See Interpreting the AQI.) All ozone measurements are in parts per billion.

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 with AQI colors
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
North West
Hammond-141st St1262329393537393027252824182629242627332325292791Hammond-141st St
Ogden Dunes13128354540454533312628282327303032303629263331151Ogden Dunes
Michigan City-W. Michigan Blvd13026344339454331292626272327292830283527243129171Michigan City-W. Michigan Blvd
Valparaiso12829354542464431302729281925302729283628223126171Valparaiso
Gary-IITRI12427333940434332282528281926292728283527263129141Gary-IITRI
LaPorte-E. Lincolnway12927314235404030302727272426292932293430222330141LaPorte-E. Lincolnway
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
North Central
South Bend-Shields Dr12727314335414331302828262428NANANANANANANANANANA1South Bend-Shields Dr
Bristol12828324539454332302828202427292331263530201827111Bristol
Potato Creek State Park12628344639464433312824272326282631283630222028191Potato Creek State Park
Granger-Beckley St13030324639464634323030262629302633283832242230121Granger-Beckley St
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
North East
Fort Wayne-Beacon St1242830413444463531302029232428273226343421212761Fort Wayne-Beacon St
Leo HS12631334637454834NANANANANANANANANANANANANANANANA1Leo HS
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
West Central
Terre Haute-Lafayette Ave12930364536474332302725272432302929293733192524151Terre Haute-Lafayette Ave
Flora12427314336444332282725272030302727273532202222141Flora
Sandcut12933394840504834332925312733323231313935212626171Sandcut
West Union13030344537464131312724282633313131303832232825161West Union
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
East Central
Emporia126333746NVNANANANA3021322230312929273533182120181Emporia
Albany124323245384746403131203021283128322735341722NVNA1Albany
Indpls-Washington Park12430273833404233262721282329312729253431212022121Indpls-Washington Park
Indpls-Harding St12628283333364134262319302030312825283431221820131Indpls-Harding St
Indpls-Ft. Harrison12530303937464635292721302430322829273433212122NA1Indpls-Ft. Harrison
Whitestown12431344136464635272723302228292828273533192123121Whitestown
Avon12632374442484435282822242431332928283834222124121Avon
Fairland126333745414748363228193022313231282937351820NVNA1Fairland
Noblesville-191st St12430NVNANANA423227272129232931292827363419NANANA1Noblesville-191st St
Hope12834374740484938353120332636363228293734232125181Hope
Indpls - I-70 E12224263632384131242511261326282218233325101311101Indpls - I-70 E
Kokomo - E. Vaile Ave.12632354340484634302924292231322831273737212226121Kokomo - E. Vaile Ave.
Helmsburg12934364542464435313121312636363332303936222126191Helmsburg
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
South West
Boonville13433304338454133322824302739343133NV3632242528221Boonville
Evansville-Buena Vista Rd13433313837444033302625292737333232303629222325201Evansville-Buena Vista Rd
Inglefield1343436NANANA42333127NA272337323331303832222526201Inglefield
St. Philips13129323733383327242020242329292829263126192322191St. Philips
Leopold13231394842554234333123312841373432303938252325201Leopold
Dayville13535334035434234302623302638333333313333222724231Dayville
Plummer13135364442504736333025332737343333313933242626221Plummer
AreaMonitoring SitePOCNovember 2020POCMonitoring Site
123456789101112131415161718192021222324
South East
New Albany13333NVNANANA3237262725243228353134263436202325121New Albany
Charlestown State Park13132314433514340323023293139383134293334222226191Charlestown State Park
POC (Parameter Occurrence Code): a code used to correctly separate data from multiple instruments at one site.
NV - There are not enough valid eight-hour averages for this day (there must be eighteen valid eight-hour averages).
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.