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Daily Maximum Eight-Hour Ozone Averages for October 2014

The table below lists the peak daily maximum eight-hour ozone concentrations measured in October 2014 in each community where the TCEQ 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 SitePOCOctober 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 23934444449474536363118333340545270564160585247555357463939NA2Ft. Worth Northwest C13/AH302
Keller C1723933424449464536353014303034544863474157584948545254433639NA2Keller C17
Frisco C31/C68014134424554525340383821343637475464464558595250596563473939NA1Frisco C31/C680
Midlothian OFW C52/A1371312744404745423332331522NANANV5051503950534843535155433535NA1Midlothian OFW C52/A137
Denton Airport South C56/A163/X15714637414756535442393518333137435260434756666052615960473540NA1Denton Airport South C56/A163/X157
Arlington Municipal Airport C6113128423946424034312915313436484965533953554844525255423436NA1Arlington Municipal Airport C61
Rockwall Heath C691383244435151463640361932373753606449445657524757666444NV40NA1Rockwall Heath C69
Grapevine Fairway C70/A301/X1821393244425246483935351732333747296749486159NVNV576159434140NA1Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07113731454148484234373013283738495851494343555045545763442839NA1Kaufman C71/A304/X071
Granbury C73/C68114242454646NV473836291633NV39464765604251534747524953434042NA1Granbury C73/C681
Eagle Mountain Lake C75 13932394347454436342816302936474461453955575149524851443539NA1Eagle Mountain Lake C75
Parker County C7613943475146445236332512313243565072513751584444474549363846NA1Parker County C76
Cleburne Airport C77/C68213736484648494438373315333540545367624457555353605461514542NA1Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3NANANV445146453634331827293741537053455355NV46545860443840NA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40212526403946434133293013283131414747433345474038474752392933NA1Dallas Executive Airport C402
Greenville C1006/A198137NV43424950443333NV1825NV37425854413847NV4646556263452835NA1Greenville C1006/A198
Pilot Point C103214737434760565843403823353638485761434259615349616866534240NA1Pilot Point C1032
Italy C1044/A32313131464346464334333515273338575552494048534845555558403638NA1Italy C1044/A323
Corsicana Airport C105113233474448484135373013273738585849493642534748535961443340NA1Corsicana Airport C1051
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64422727394851473033392626203837445544393952505040635354512935NA2Longview C19/A127/C644
Tyler Airport Relocated C8212731434450463831353024243839486049444647575554515961463237NA1Tyler Airport Relocated C82
Karnack C85/AFHP303129NV3539534435NV3628231838NVNANV46353337384533405858452831NA1Karnack C85/AFHP303
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151244504955473540392838494945454938385244NVNV4045434333304144NA2El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15913748485242293539233241433940473031514032353846424133243841NA1Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 14550475647384238293742494239443936493932333844384233303340NA1Chamizal C41/AH126
Socorro Hueco C49/F31214350485646404245274140484543484346564335373854564637293939NA1Socorro Hueco C49/F312
Skyline Park C7214947475443404148363948504246494338534136394248474435334142NA1Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N3651504748454647463635464444434542473934353530353636384644NA3BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141NV41405038343740263436453837373535483427283339413434273437NA1Ivanhoe C414
Cd Juarez Delphi C6631 NNVNANANANANANANANANANANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Waco
Waco Mazanec C103713433514548524535343516303636455850484352564854586259424239NA1Waco Mazanec C1037
Temple Georgia C104513840534352524835NV3617253639476251474356544856636162474141NA1Temple Georgia C1045
Killeen Skylark Field C104715137515056535444NV3719273841495859494460575159706265494142NA1Killeen Skylark Field C1047
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 22332393151393838312125253037465843524449474938396154574231NA2Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412233137325040413429222624293442NANV433944434837365455534026NA2West Orange C9/A141
Port Arthur West C28/A128/A22812030413349403634292026233034475342564759536046426652583934NA1Port Arthur West C28/A128/A228
Hamshire C64/C65412228343550413531302023222937515344605659516146436353554131NA1Hamshire C64/C654
SETRPC Port Arthur C6281 N182534274034312824162219253041NV37503852494940355246503531NA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C16541NVNANV314538NVNV292123243036534944484258485048455350543837NA1SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N1534362951374338302324253136456246433742434334344559604224NA1SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643124NANANANV4038NV312326273440505847595358526146436953573019NA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12231403051NANV37312126243137475845554853475542406353574133NA1Nederland High School C1035
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224035494750464333312919193539476049424555484861656058433738NA2Austin Northwest C3/A322
Audubon C3814438495153484737353118213639466254484559525161636062463943NA1Audubon C38
Fayette County C6012 N3425464949493328322620243640515644444654545148546652423932NA2Fayette County C601
Dripping Springs School C6141 N4535454951454735333016203537466153464757535161595961453741NA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N3123413738363125242212162931444637313542413842495143343327NA1CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N4538474852484838363319243638496157444254494861696263474041NA1CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 NNVNANV5854NVNANANANANANANANANV4840363944404053505048353333NA1Gorzycki Middle School C1603
Lockhart C16041 N3724454545393531332818283640555747414853505158606554444039NA1Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N3424454548373329282414233335565344364549464758606552403836NA1CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N1516242123222015151510112222273327252632313033424440302626NA1CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G31622920303347353531382321182130435144485448485233365952474030NA2Houston East C1/G316
Houston Aldine C8/AF108/X150 23026323749NV32293719262129334451424640NVNANV41415550433530NA2Houston Aldine C8/AF108/X150
Channelview C15/AH115 32422333144353226271822182737454943444947444939405549443432NA3Channelview C15/AH115
Northwest Harris Co. C26/A110/X15423426394249463536462331243437475345494151464947475949454230NA2Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP23912623343544393228321722182435484841474755545841428649443932NA1Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C451232538354644322831172220234053514244515560584647615446NV29NA1Seabrook Friendship Park C45
Houston Bayland Park C53/A146 12926434547413027371827192936504939576258595943446947444037NA1Houston Bayland Park C53/A146
Conroe Relocated C78/A32114729403962485344582731203540515954433846454733405959524425NA1Conroe Relocated C78/A321
Manvel Croix Park C841272644474540302534192619NV38485043615270626745459551484140NA1Manvel Croix Park C84
Clinton C403/C304/AH113 32016333342352623261621181927313327475150495335395544322631NA3Clinton C403/C304/AH113
Houston North Wayside C40512716343645383228361824182230344436464546444639434953403433NA1Houston North Wayside C405
Houston Monroe C40612222303440352823281821162433404133444153475331347643413630NA1Houston Monroe C406
Lang C40823125364046393529391930192835425042504756474940427050443831NA2Lang C408
Houston Croquet C40922926434346403128372027192937494840605860616740446751434038NA2Houston Croquet C409
Houston Westhollow C41012927404845423127362031212934474838565758545543477247413836NA1Houston Westhollow C410
Houston Texas Avenue C41112524343744363027311825192330424335505550495238435654393532NA1Houston Texas Avenue C411
Park Place C4161292334364537352835212518243446NV38545653566033366748443834NA1Park Place C416
Sheldon C5511 N2722323042333325291923202734414540413944424436364046413630NA1Sheldon C551
Baytown Wetlands Center C5521 N2319303242343125271219172334444336424549465239385447383628NA1Baytown Wetlands Center C552
Crosby Library C5531 N3021302945374228351925212835434844403643424434344151423727NA1Crosby Library C553
West Houston C5541 N111315262430171715111511161320NVNANANANANANANANANANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N2122313342382926281620182133443831313540474646455952434032NA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N3320333447394130402226232731395042403444394239385050413626NA1Mercer Arboretum C557
Tom Bass C5581 N2018313436322419261116112028363830454055455027317442393331NA1Tom Bass C558
Katy Park C5591 N272436464344292734192922313643473953NANANV5043445342353030NA1Katy Park C559
Atascocita C5601 N3021292945383833372123232528364639383437374136364250403424NA1Atascocita C560
Meyer Park C5611 N3524373949424033452429243236455344454048444745475950453928NA1Meyer Park C561
Bunker Hill Village C5621 N2822384142373026351828182633414537494952475038436143413334NA1Bunker Hill Village C562
Huffman Wolf Road C5631 N2213202035263320321922202430374539332933343731313148NV3521NA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N282134364641373236222619NV35445345535856555940407355484435NA1HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N3229383753474731392127243644495750555559515946456062504938NA1Wallisville Road C617
Danciger C618 1 N2723455244402521301827NV293849483941505556594955NANANV3833NA1Danciger C618
Mustang Bayou C619 1 N2627484245423229312028212638464941454655515455566250464037NA1Mustang Bayou C619
Texas City 34th St. C620 1 N1924353042NANV2825NV109NV14172738475264566054536854514448NA1Texas City 34th St. C620
UH Moody Tower C6951 N333042435144403341242935334156554660686361654650725551NV41NA1UH Moody Tower C695
U of H-Sugarland C6961 N2723384941412925301828202733444738605762617042467244423734NA1U of H-Sugarland C696
UH Coastal Center C6971 N2427463647423231302027232340494840464457505349515849464139NA1UH Coastal Center C697
UH WG Jones Forest C6981 N402841395647494152263119354154NV54443948464745466156504324NA1UH WG Jones Forest C698
UH West Liberty C6991 N36NVNV355344523343NV30253441NVNV53463945454942404565524627NA1UH West Liberty C699
Lynchburg Ferry C1015/A165 12418313044373226281821192633404941434850465334365748453629NA1Lynchburg Ferry C1015/A165
Lake Jackson C1016 12927554347413029322127232739524841415058545750606151484137NA1Lake Jackson C1016
Baytown Garth C101713026343449434330362025233138445146515154505542415656464534NA1Baytown Garth C1017
Galveston 99th St. C1034/A320/X183127NANV48554840413825312631475553494955NV545547466256534143NA1Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2324436465450484234323018283938485355445158616279656462444143NA2San Antonio Northwest C23
Camp Bullis C5815241526355545039363419224243534961465359626376726965474043NA1Camp Bullis C58
Calaveras Lake C5913929515248393528312720294042525445394952575962616252413943NA1Calaveras Lake C59
Elm Creek Elementary C5011 N3828505044343429292617293738495045384651575872585956393836NA1Elm Creek Elementary C501
Fair Oaks Ranch C5021 N4536435750504537333117213838465459434953545761585758413834NA1Fair Oaks Ranch C502
Bulverde Elementary C5031 N463344545147483433301620373948NVNV414954535556666461463940NA1Bulverde Elementary C503
New Braunfels Airport C5041 N3928484949413832322717263839545548395051515462676752403939NA1New Braunfels Airport C504
City of Garden Ridge C5051 N4433465450434330312719283942575750405153535670777358433546NA1City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N4029484951413731342816253637505648395154535658676554444038NA1Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N4131515448413626312620294142555747415154576066706454423746NA1Heritage Middle School C622
CPS Pecan Valley C6781 N4230445147373830312715243536495448384750525570706254413940NA1CPS Pecan Valley C678
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4229205156513122263023262444505448453951NVNV5962726947423830NA2Corpus Christi West C4
Corpus Christi Tuloso C2112919505348282223NANV24234046514541324339585658666847413839NA1Corpus Christi Tuloso C21
Victoria C8713527515349352623282332253842515042354862635852606851414044NA1Victoria C87
Inez C6091 N2823414242322220251930233534344136354460545647555443403435NA1Inez C609
Coleto C6241 N3020394342282319241928203734444437274652585447545845373436NA1Coleto C624
Aransas Pass C6591 N2120485248301924252122214245524540405252635859676647423935NA1Aransas Pass C659
Holly Road C6601 N2216465144261622241920203639444137314548585455676342383434NA1Holly Road C660
Violet C6641 N2615475244241819251822193644464238284244585659666844373441NA1Violet C664
Ingleside C6851 N2221424946281923262224213540464338324843565554626145403734NA1Ingleside C685
Odem C6861 N2821464945292223282226234045514540294345545355626141343536NA1Odem C686
Taft C6871 N3125535651332527302328254247554844344849615862707150444142NA1Taft C687
Cuero C16021 N3825495150403128302626274044625647415460676656647657444239NA1Cuero C1602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP14311921414235262520191623202932433732233438324144515336NANV29NA1Mission C43/AP143
Brownsville C80/AGP18011922564640232023211619203240504032253937444448524840373531NA1Brownsville C80/AGP180
Harlingen Teege C10231NANANV4646282926292224253545494734274343445453615246403835NA1Harlingen Teege C1023
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P24413124484939303025262225273739414339253438394451545643353532NA1Laredo Vidaurri C44/AFGP144/P244
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.
 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.