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Peak Daily One-Hour Ozone Averages for November 2014

The table below lists the peak daily one-hour ozone concentrations measured in November 2014 in each community where the TCEQ 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 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 237464640174343444148363130252827394546392729443935382Ft. Worth Northwest C13/AH302
Keller C17239444440183837403945332728232828354042372827393635362Keller C17
Frisco C31/C680140444742204237404352352930283027394042433236433833381Frisco C31/C680
Midlothian OFW C52/A1371394545NA53941394151292928282923364340402929433636351Midlothian OFW C52/A137
Denton Airport South C56/A163/X157142495140264041454749373031283232404749462932444137381Denton Airport South C56/A163/X157
Arlington Municipal Airport C61138444536153939384050322929272925364241392929413635361Arlington Municipal Airport C61
Rockwall Heath C69141455140204242434455373132303324394243433641453835401Rockwall Heath C69
Grapevine Fairway C70/A301/X182137454736174139414250343129233026374346422830423936351Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071142414938204041404150352930303122384146403838433239391Kaufman C71/A304/X071
Granbury C73/C681141514641194448404246373029282924384442373133433842391Granbury C73/C681
Eagle Mountain Lake C75 138454437143843413945352929262929364342392729383835361Eagle Mountain Lake C75
Parker County C761NANANANA205153474649353233313336435249433739454240401Parker County C76
Cleburne Airport C77/C682143534842264549464253343230303023394742403532453938391Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 339444535154038414254322828232825364043402930413531343Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402135404332133335363848282627NA2622343831362828373332341Dallas Executive Airport C402
Greenville C1006/A198138424440184043404250332830312823383945433540463839391Greenville C1006/A198
Pilot Point C1032141475141214439444952363232303033424548473036413835381Pilot Point C1032
Italy C1044/A323139474838194041394352302726302819364143402929403739351Italy C1044/A323
Corsicana Airport C1051139465238243841404452352929323120344345423635423441341Corsicana Airport C1051
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644239394539273740334155343027292220384346403239373642402Longview C19/A127/C644
Tyler Airport Relocated C82140404539243845373850373129322920404548413740413943401Tyler Airport Relocated C82
Karnack C85/AFHP303135394542233642333950343229332622384147383142363739411Karnack C85/AFHP303
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151239453034354146406141403432353746394439413540504439352El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159137393231363540385535363533323236413443333338453934271Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 135433129353645356241412929293838383937433442484341351Chamizal C41/AH126
Socorro Hueco C49/F312139444032363747385140423637373640433944423842463737311Socorro Hueco C49/F312
Skyline Park C72141443433384346395843433737384140433837424045504141351Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N46494234394238504240393737333143434040414143444446433BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414135392929313140325538NANANANANANANANANANANANANANANANA1Ivanhoe C414
Cd Juarez Delphi C6631 NNANANANA24NANANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Waco
Waco Mazanec C1037141574640253740404453282826312919374242402832423840361Waco Mazanec C1037
Temple Georgia C1045145564740303743454655323328322822414546383239424140401Temple Georgia C1045
Killeen Skylark Field C1047147554943323946464255333429322924434946413738454443421Killeen Skylark Field C1047
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 237454744412432435452432128352929394045444843453438502Beaumont-Downtown C2/A112/C2002
West Orange C9/A141236464943392432365254451926393030363840434744403133492West Orange C9/A141
Port Arthur West C28/A128/A228137465045422527395753452429363126394045444438403535501Port Arthur West C28/A128/A228
Hamshire C64/C654141485046372235415453422329362929414346475143433439511Hamshire C64/C654
SETRPC Port Arthur C6281 N33404240382330404746412025302826344341414540363132441SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654139444844413034474152442629363429393945445041353431491SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N36485047412332384257442329363031403949495046493535521SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643122293128251723263129262529353231NA1036364136343029421SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 137465146422534435953472530353230414047475247433636511Nederland High School C1035
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224650443932NA14484447313429282519424347352832414042422Austin Northwest C3/A322
Audubon C38149534741343046504253323530292620414945363435414144441Audubon C38
Fayette County C6012 N475049453226414923NANANANANANANANANANANANANANANANANA2Fayette County C601
Dripping Springs School C6141 N46524437332648474152NANANANANANANANANANANANANANANANA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N39414037271936483739NANANANANANANANANANANANANANANANA1CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N46534841343448474440NANANANANANANANANANANANANANANANA1CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N384336322823374036392622NANANANANANANANANANANANANANA1Gorzycki Middle School C1603
Lockhart C16041 N51564745343047535247NANANANANANANANANANANANANANANANA1Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N45504341282241444643NANANANANANANANANANANANANANANANA1CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N32382221161723292620NANANANANANANANANANANANANANANANA1CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G316240494544392229405448352322262214313942413336432735472Houston East C1/G316
Houston Aldine C8/AF108/X150 236504439321329425744372726292515363741393943463440472Houston Aldine C8/AF108/X150
Channelview C15/AH115 335413938352731496147392627292416374039253637413340453Channelview C15/AH115
Northwest Harris Co. C26/A110/X154242544844292635444746363130302716394143403836483542462Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239141453741372230446745372524272410333839393739363034421Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45142484344402438515351452527322816384144414444413340481Seabrook Friendship Park C45
Houston Bayland Park C53/A146 140486443381630515445352625252315383541423739413541461Houston Bayland Park C53/A146
Conroe Relocated C78/A321139515450192939474957393333362918414446454443473744521Conroe Relocated C78/A321
Manvel Croix Park C84156484744392537505749382627292816394544443638433741501Manvel Croix Park C84
Clinton C403/C304/AH113 338433230292328424636342323271912353528NA4040353133313Clinton C403/C304/AH113
Houston North Wayside C405138494241342030424542242525272413353933403940383129351Houston North Wayside C405
Houston Monroe C40613944403733212742494233212222211231332NANA37362833421Houston Monroe C406
Lang C408239484340361329465244362422252316353439363537443239442Lang C408
Houston Croquet C409240454542381830505545332525232315373341433537413541472Houston Croquet C409
Houston Westhollow C410139454440341829475143342826252216383540393434423439451Houston Westhollow C410
Houston Texas Avenue C41113748403931172744NANANANANANANANANANANANA3537383034401Houston Texas Avenue C411
Park Place C416139474339381927425245352022222212333139404142393035431Park Place C416
Sheldon C5511 N34434136342130424845322525282414363735273635383338411Sheldon C551
Baytown Wetlands Center C5521 N36404138302232444642312324262414343337353534343036401Baytown Wetlands Center C552
Crosby Library C5531 N34424440351928424746332625292412353837403835403038421Crosby Library C553
La Porte Sylvan Beach C5561 N38464441372333495348412727312816384340334342393339481La Porte Sylvan Beach C556
Mercer Arboretum C5571 N38484639122130394942332724292314363837NANANANANANANA1Mercer Arboretum C557
Tom Bass C5581 N43414038322030434841312221232312333437383436333034411Tom Bass C558
Katy Park C5591 N38424035252129424039272525252015353337333031413136411Katy Park C559
Atascocita C5601 N30414338201827384541302322262314293534343533393035371Atascocita C560
Meyer Park C5611 N40574743292133444943252927282617373940393129453440441Meyer Park C561
Bunker Hill Village C5621 N37444138341327454942312524241714363337363336403338431Bunker Hill Village C562
Huffman Wolf Road C5631 N2837393732NANA354143302523262214333536373531362734381Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N42514644392234465751372725302615384342384141453439471HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N44505248422639536854403031352920444747464745443845491Wallisville Road C617
Danciger C618 1 N47494742372337545048432929322717414544443836443945521Danciger C618
Mustang Bayou C619 1 N42474544402336515949402724312628384343444341413639461Mustang Bayou C619
Texas City 34th St. C620 1 N46535148443541715254492931353531414747484145423541491Texas City 34th St. C620
UH Moody Tower C6951 N43544945422734545951422727292616415555474747453744511UH Moody Tower C695
U of H-Sugarland C6961 N46444641341632484745352624222515363540423332383136471U of H-Sugarland C696
UH Coastal Center C6971 N42494744412937625348472826312830384243434442393739461UH Coastal Center C697
UH WG Jones Forest C6981 N39185243162732NANA52383134352717414344404237493744511UH WG Jones Forest C698
UH West Liberty C6991 N364747484228324451543729293227194042464444NA283442481UH West Liberty C699
Lynchburg Ferry C1015/A165 136464342391930455348382726292514363437284142313032381Lynchburg Ferry C1015/A165
Lake Jackson C1016 148494846402741505751472628342519414545473939433841481Lake Jackson C1016
Baytown Garth C1017139454745392536476049402727312718394244434442383239431Baytown Garth C1017
Galveston 99th St. C1034/A320/X183147535047432839615756492729323535404146444542393440491Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23253534243403136424146283130252518374247222931393642432San Antonio Northwest C23
Camp Bullis C58154574647423446484651343833302518434552192931413945451Camp Bullis C58
Calaveras Lake C59152514443333642444944303331312716414553373133433944471Calaveras Lake C59
Elm Creek Elementary C5011 N5353414236NANANANANANANANANANANANANANANANANANANANANA1Elm Creek Elementary C501
Fair Oaks Ranch C5021 N4851404037NANANANANANANANANANANANANANANANANANANANANA1Fair Oaks Ranch C502
Bulverde Elementary C5031 N4953414337NANANANANANANANANANANANANANANANANANANANANA1Bulverde Elementary C503
New Braunfels Airport C5041 N46524344NANANANANANANANANANANANANANANANANANANANANANA1New Braunfels Airport C504
City of Garden Ridge C5051 N5257474739NANANANANANANANANANANANANANANANANANANANANA1City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N49544646NANANANANANANANANANANANANANANANANANANANANANA1Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N54544544363437434848293431302616424455373137453946501Heritage Middle School C622
CPS Pecan Valley C6781 N47494341312539384341252927292514384449252829323541431CPS Pecan Valley C678
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4250514845412928555848402629332515424747384037423845532Corpus Christi West C4
Corpus Christi Tuloso C21150524744423230565949412830342617424746383938434046521Corpus Christi Tuloso C21
Victoria C87151504744282432615147363027342716424744363637433843481Victoria C87
Inez C6091 N47494843362326453243303129333219404022NANANANANANANA1Inez C609
Coleto C6241 N4646424126252652414230272532271531NANANANANANANANANA1Coleto C624
Aransas Pass C6591 N48525046392728605546412528292515404543333434303442441Aransas Pass C659
Holly Road C6601 N47484643383025515544372425302314374342333634393439491Holly Road C660
Violet C6641 N49494441393030535643382627322117404344363735403946481Violet C664
Ingleside C6851 N46505046403030505547422730352716424848362323173124291Ingleside C685
Odem C6861 N46474442363128545247382628312215394444343634403846501Odem C686
Taft C6871 N51534946413431555948412933372617444950384140404147521Taft C687
Cuero C16021 N5252474424214056574933302735271742464825NANANANANANA1Cuero C1602
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143145393533251630394436442125303231313232272826353235341Mission C43/AP143
Brownsville C80/AGP180146464343363033454845392627293131383838373732373440401Brownsville C80/AGP180
Harlingen Teege C102314849454437NANANANANANA2729343134454645383934434248491Harlingen Teege C1023
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244150423833162929395239242330262519383939282826363639251Laredo Vidaurri C44/AFGP144/P244
NA - Data not available.
 N - Data from this instrument does not meet EPA quality assurance criteria and cannot be used for regulatory purposes.

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 - 0.059
51 - 100 Not Defined 0.06 - 0.075
101 - 150 0.125 - 0.164 0.076 - 0.095
151 - 200 0.165 - 0.204 0.096 - 0.115
201 - 300 0.205 - 0.404 0.116 - 0.374
301 - 400 0.405 - 0.504 Not Defined
401 - 500 0.505 - 0.604 Not Defined
500+ Not Defined Not Defined

PLEASE NOTE:  This data has not been verified by the TCEQ 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 TCEQ 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.

Following EPA reporting guidelines, negative values may be displayed in our hourly criteria air quality data beginning 1/1/2013, down to the negative of the EPA listed Method Detection Limit (MDL) for the particular instrument that made the measurements. The reported concentrations can be negative due to zero drift in the electronic instrument output, data logger channel, or calibration adjustments to the data. Prior to 1/1/2013, slightly negative values were automatically set to zero.