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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 2374646401743434441483631302528273945463927294439353831432Ft. Worth Northwest C13/AH302
Keller C172394444401838374039453327282328283540423728273936353631422Keller C17
Frisco C31/C6801404447422042374043523529302830273940424332364338333837481Frisco C31/C680
Midlothian OFW C52/A1371394545NA539413941512929282829233643404029294336363535431Midlothian OFW C52/A137
Denton Airport South C56/A163/X1571424951402640414547493730312832324047494629324441373839481Denton Airport South C56/A163/X157
Arlington Municipal Airport C611384445361539393840503229292729253642413929294136353634431Arlington Municipal Airport C61
Rockwall Heath C691414551402042424344553731323033243942434336414538354039531Rockwall Heath C69
Grapevine Fairway C70/A301/X1821374547361741394142503431292330263743464228304239363535451Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711424149382040414041503529303031223841464038384332393937481Kaufman C71/A304/X071
Granbury C73/C6811415146411944484042463730292829243844423731334338423935411Granbury C73/C681
Eagle Mountain Lake C75 1384544371438434139453529292629293643423927293838353633411Eagle Mountain Lake C75
Parker County C761NANANANA2051534746493532333133364352494337394542404038461Parker County C76
Cleburne Airport C77/C6821435348422645494642533432303030233947424035324539383939431Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3394445351540384142543228282328253640434029304135313435453Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402135404332133335363848282627NA26223438313628283733323433431Dallas Executive Airport C402
Greenville C1006/A1981384244401840434042503328303128233839454335404638393937491Greenville C1006/A198
Pilot Point C10321414751412144394449523632323030334245484730364138353836481Pilot Point C1032
Italy C1044/A3231394748381940413943523027263028193641434029294037393534491Italy C1044/A323
Corsicana Airport C10511394652382438414044523529293231203443454236354234413438481Corsicana Airport C1051
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C6442393945392737403341553430272922203843464032393736424035422Longview C19/A127/C644
Tyler Airport Relocated C821404045392438453738503731293229204045484137404139434039501Tyler Airport Relocated C82
Karnack C85/AFHP3031353945422336423339503432293326223841473831423637394134441Karnack C85/AFHP303
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X1512394530343541464061414034323537463944394135405044393537452El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X1591373932313635403855353635333232364134433333384539342736311Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 1354331293536453562414129292938383839374334424843413535431Chamizal C41/AH126
Socorro Hueco C49/F3121394440323637473851404236373736404339444238424637373143431Socorro Hueco C49/F312
Skyline Park C721414434333843463958434337373841404338374240455041413545401Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N464942343942385042403937373331434340404141434444464343493BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414135392929313140325538NANANANANANANANANANANANANANANANANANA1Ivanhoe C414
Cd Juarez Delphi C6631 NNANANANA24NANANANANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Waco
Waco Mazanec C10371415746402537404044532828263129193742424028324238403637531Waco Mazanec C1037
Temple Georgia C10451455647403037434546553233283228224145463832394241404037541Temple Georgia C1045
Killeen Skylark Field C10471475549433239464642553334293229244349464137384544434240551Killeen Skylark Field C1047
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 2374547444124324354524321283529293940454448434534385038472Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412364649433924323652544519263930303638404347444031334934382West Orange C9/A141
Port Arthur West C28/A128/A2281374650454225273957534524293631263940454444384035355037391Port Arthur West C28/A128/A228
Hamshire C64/C6541414850463722354154534223293629294143464751434334395140481Hamshire C64/C654
SETRPC Port Arthur C6281 N334042403823304047464120253028263443414145403631324435401SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C16541394448444130344741524426293634293939454450413534314935401SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N364850474123323842574423293630314039494950464935355235451SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643122293128251723263129262529353231NA10363641363430294229331SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 1374651464225344359534725303532304140474752474336365136431Nederland High School C1035
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224650443932NA144844473134292825194243473528324140424238492Austin Northwest C3/A322
Audubon C381495347413430465042533235302926204149453634354141444437531Audubon C38
Fayette County C6012 N475049453226414923NANANANANANANANANANANANANANANANANANANA2Fayette County C601
Dripping Springs School C6141 N46524437332648474152NANANANANANANANANANANANANANANANANANA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N39414037271936483739NANANANANANANANANANANANANANANANANANA1CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N46534841343448474440NANANANANANANANANANANANANANANANANANA1CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N384336322823374036392622NANANANANANANANANANANANANANANANA1Gorzycki Middle School C1603
Lockhart C16041 N51564745343047535247NANANANANANANANANANANANANANANANANANA1Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N45504341282241444643NANANANANANANANANANANANANANANANANANA1CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N32382221161723292620NANANANANANANANANANANANANANANANANANA1CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162404945443922294054483523222622143139424133364327354740452Houston East C1/G316
Houston Aldine C8/AF108/X150 2365044393213294257443727262925153637413939434634404737422Houston Aldine C8/AF108/X150
Channelview C15/AH115 3354139383527314961473926272924163740392536374133404538333Channelview C15/AH115
Northwest Harris Co. C26/A110/X1542425448442926354447463631303027163941434038364835424641442Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391414537413722304467453725242724103338393937393630344243421Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C451424843444024385153514525273228163841444144444133404841481Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1404864433816305154453526252523153835414237394135414641431Houston Bayland Park C53/A146
Conroe Relocated C78/A3211395154501929394749573933333629184144464544434737445240471Conroe Relocated C78/A321
Manvel Croix Park C841564847443925375057493826272928163945444436384337415049461Manvel Croix Park C84
Clinton C403/C304/AH113 338433230292328424636342323271912353528NA40403531333139403Clinton C403/C304/AH113
Houston North Wayside C4051384942413420304245422425252724133539334039403831293534371Houston North Wayside C405
Houston Monroe C40613944403733212742494233212222211231332NANA373628334244391Houston Monroe C406
Lang C4082394843403613294652443624222523163534393635374432394439402Lang C408
Houston Croquet C4092404545423818305055453325252323153733414335374135414743432Houston Croquet C409
Houston Westhollow C4101394544403418294751433428262522163835403934344234394542421Houston Westhollow C410
Houston Texas Avenue C41113748403931172744NANANANANANANANANANANANA35373830344039401Houston Texas Avenue C411
Park Place C4161394743393819274252453520222222123331394041423930354338421Park Place C416
Sheldon C5511 N344341363421304248453225252824143637352736353833384134371Sheldon C551
Baytown Wetlands Center C5521 N364041383022324446423123242624143433373535343430364035361Baytown Wetlands Center C552
Crosby Library C5531 N344244403519284247463326252924123538374038354030384232391Crosby Library C553
La Porte Sylvan Beach C5561 N384644413723334953484127273128163843403343423933394838341La Porte Sylvan Beach C556
Mercer Arboretum C5571 N38484639122130394942332724292314363837NANANANANANANANANA1Mercer Arboretum C557
Tom Bass C5581 N434140383220304348413122212323123334373834363330344145391Tom Bass C558
Katy Park C5591 N384240352521294240392725252520153533373330314131364140381Katy Park C559
Atascocita C5601 N304143382018273845413023222623142935343435333930353747NA1Atascocita C560
Meyer Park C5611 N405747432921334449432529272826173739403931294534404438401Meyer Park C561
Bunker Hill Village C5621 N374441383413274549423125242417143633373633364033384339401Bunker Hill Village C562
Huffman Wolf Road C5631 N2837393732NANA3541433025232622143335363735313627343829371Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N425146443922344657513727253026153843423841414534394743461HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N445052484226395368544030313529204447474647454438454941481Wallisville Road C617
Danciger C618 1 N474947423723375450484329293227174145444438364439455244491Danciger C618
Mustang Bayou C619 1 N424745444023365159494027243126283843434443414136394643121Mustang Bayou C619
Texas City 34th St. C620 1 N465351484435417152544929313535314147474841454235414948541Texas City 34th St. C620
UH Moody Tower C6951 N435449454227345459514227272926164155554747474537445146491UH Moody Tower C695
U of H-Sugarland C6961 N464446413416324847453526242225153635404233323831364745411U of H-Sugarland C696
UH Coastal Center C6971 N424947444129376253484728263128303842434344423937394643491UH Coastal Center C697
UH WG Jones Forest C6981 N39185243162732NANA523831343527174143444042374937445141461UH WG Jones Forest C698
UH West Liberty C6991 N364747484228324451543729293227194042464444NA2834424836471UH West Liberty C699
Lynchburg Ferry C1015/A165 1364643423919304553483827262925143634372841423130323832361Lynchburg Ferry C1015/A165
Lake Jackson C1016 1484948464027415057514726283425194145454739394338414843471Lake Jackson C1016
Baytown Garth C10171394547453925364760494027273127183942444344423832394335431Baytown Garth C1017
Galveston 99th St. C1034/A320/X1831475350474328396157564927293235354041464445423934404941511Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C232535342434031364241462831302525183742472229313936424343522San Antonio Northwest C23
Camp Bullis C581545746474234464846513438333025184345521929314139454543491Camp Bullis C58
Calaveras Lake C591525144433336424449443033313127164145533731334339444746491Calaveras Lake C59
Elm Creek Elementary C5011 N5353414236NANANANANANANANANANANANANANANANANANANANANANANA1Elm Creek Elementary C501
Fair Oaks Ranch C5021 N4851404037NANANANANANANANANANANANANANANANANANANANANANANA1Fair Oaks Ranch C502
Bulverde Elementary C5031 N4953414337NANANANANANANANANANANANANANANANANANANANANANANA1Bulverde Elementary C503
New Braunfels Airport C5041 N46524344NANANANANANANANANANANANANANANANANANANANANANANANA1New Braunfels Airport C504
City of Garden Ridge C5051 N5257474739NANANANANANANANANANANANANANANANANANANANANANANA1City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N49544646NANANANANANANANANANANANANANANANANANANANANANANANA1Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N545445443634374348482934313026164244553731374539465045511Heritage Middle School C622
CPS Pecan Valley C6781 N474943413125393843412529272925143844492528293235414341441CPS Pecan Valley C678
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C42505148454129285558484026293325154247473840374238455355442Corpus Christi West C4
Corpus Christi Tuloso C211505247444232305659494128303426174247463839384340465255451Corpus Christi Tuloso C21
Victoria C871515047442824326151473630273427164247443636374338434853461Victoria C87
Inez C6091 N47494843362326453243303129333219404022NANANANANANANANANA1Inez C609
Coleto C6241 N4646424126252652414230272532271531NANANANANANANANANANANA1Coleto C624
Aransas Pass C6591 N485250463927286055464125282925154045433334343034424449381Aransas Pass C659
Holly Road C6601 N474846433830255155443724253023143743423336343934394953401Holly Road C660
Violet C6641 N494944413930305356433826273221174043443637354039464856411Violet C664
Ingleside C6851 N465050464030305055474227303527164248483623231731242932251Ingleside C685
Odem C6861 N464744423631285452473826283122153944443436344038465050421Odem C686
Taft C6871 N515349464134315559484129333726174449503841404041475254451Taft C687
Cuero C16021 N5252474424214056574933302735271742464825NANANANANANANANA1Cuero C1602
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431453935332516303944364421253032313132322728263532353442311Mission C43/AP143
Brownsville C80/AGP1801464643433630334548453926272931313838383737323734404041361Brownsville C80/AGP180
Harlingen Teege C102314849454437NANANANANANA27293431344546453839344342484958441Harlingen Teege C1023
AreaMonitoring SitePOCNovember 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P2441504238331629293952392423302625193839392828263636392542351Laredo 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.