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Air Quality in Indiana

Air Quality in Indiana > Monitoring > Continuous Air Quality Monitoring > Ozone (O3) Data Map Ozone (O3) Data Map

Ground-level O3, or photochemical smog, is not emitted into the atmosphere as ozone, but rather is formed by the reactions of other pollutants. The primary pollutants entering into this reaction, volatile organic compounds (VOCs) and oxides of nitrogen, create ozone in the presence of sunlight. Ozone is a strong irritant of the upper respiratory system and also causes damage to crops.

IDEM operates 43 continuous O3 monitoring sites that are polled hourly in order to obtain the most current information. This continuous data is available interactively through the map and table below. The new Indpls - I-70 E monitoring site is in the process of being installed and it is expected that O3 readings will be available April 1, 2014.

Ozone Monitors AlbanyAlbanyAvonAvonBoonvilleBoonvilleBristolBristolBrownstownBrownstownCassopolisCassopolisCharlestown St. ParkCharlestown St. ParkDayvilleDayvilleEmporiaEmporiaEvansville - Buena VistaEvansville - Buena VistaFairlandFairlandFloraFloraFortvilleFortvilleFt Wayne - Beacon St.Ft Wayne - Beacon St.Gary - IITRIGary - IITRIGranger - Beckley St.Granger - Beckley St.Hammond - 141st St.Hammond - 141st St.HelmsburgHelmsburgHopeHopeInglefieldInglefieldIndpls - E. 16th St.Indpls - E. 16th St.Indpls - Ft. HarrisonIndpls - Ft. HarrisonIndpls - Harding St.Indpls - Harding St.Indpls - I-70 EIndpls - I-70 EIndpls - Washington ParkIndpls - Washington ParkLaPorte - E. LincolnwayLaPorte - E. LincolnwayLeoLeoLeopoldLeopoldLynnvilleLynnvilleMichigan City - 4th St.Michigan City - 4th St.MonroviaMonroviaNew AlbanyNew AlbanyNoblesville - 191st St.Noblesville - 191st St.Ogden DunesOgden DunesPlummerPlummerPotato Creek St. ParkPotato Creek St. ParkRoanokeRoanokeSandcutSandcutS. Bend - Shields Dr.S. Bend - Shields Dr.St. PhilipsSt. PhilipsTerre Haute - Lafayette Ave.Terre Haute - Lafayette Ave.TrafalgarTrafalgarValparaisoValparaisoWest UnionWest UnionWhitestownWhitestownWhiting - HSWhiting - HS
Ozone Monitor Sites
County City Site
Allen Fort Wayne Fort Wayne - Beacon St.
Allen Leo Leo
Bartholomew Hope Hope
Boone Whitestown Whitestown
Brown Nashville Helmsburg
Carroll Flora Flora
Cass, MI Cassopolis Cassopolis
Clark Charlestown Charlestown St. Park
Clark, IL West Union West Union
Delaware Albany Albany
Elkhart Bristol Bristol
Floyd New Albany New Albany
Greene Plummer Plummer
Hamilton Noblesville Noblesville - 191st St.
Hancock Fortville Fortville
Hendricks Avon Avon
Huntington Roanoke Roanoke
Jackson Brownstown Brownstown
Johnson Trafalgar Trafalgar
Lake Hammond Hammond - 141st St.
Lake Gary Gary - IITRI
Lake Whiting Whiting - HS
LaPorte Michigan City Michigan City - 4th St.
LaPorte LaPorte LaPorte - E. Lincolnway
Madison Emporia Emporia
Marion Indianapolis Indpls - E 16th St.
Marion Indianapolis Indpls - Ft. Harrison
Marion Indianapolis Indpls - Harding St.
Marion Indianapolis Indpls - I-70 E
Marion Indianapolis Indpls - Washington Park
Morgan Monrovia Monrovia
Perry Leopold Leopold
Porter Ogden Dunes Ogden Dunes (Diana Rd)
Porter Valparaiso Valparaiso
Posey St. Philips St. Philips
Shelby Fairland Fairland
St. Joseph Granger Granger - Beckley St.
St. Joseph N. Liberty Potato Creek St. Park
St. Joseph South Bend S. Bend - Shields Dr.
Vigo Sandcut Sandcut
Vanderburgh Evansville Evansville - Buena Vista
Vanderburgh Inglefield Inglefield
Vigo Terre Haute Terre Haute - Lafayette Ave.
Warrick Boonville Boonville
Warrick Dayville Dayville
Warrick Lynnville Lynnville

Air Ambient Monitor Links