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Daily Maximum Eight-Hour Ozone Averages for July 2014

The table below lists the peak daily maximum eight-hour ozone concentrations measured in July 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 SitePOCJuly 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 236625055NVNANV3644373138404157632136495451798881222Ft. Worth Northwest C13/AH302
Keller C172385744554947374046393238433952632232465652707470312Keller C17
Frisco C31/C6801485045595553495262484147554552662733396658565361321Frisco C31/C680
Midlothian OFW C52/A1371314548464440353535333333393750532237434446516262271Midlothian OFW C52/A137
Denton Airport South C56/A163/X1571455040665452424862484044484052782532436866676263251Denton Airport South C56/A163/X157
Arlington Municipal Airport C611315151484338323134312932353452541832424644607869201Arlington Municipal Airport C61
Dallas North No.2 C63/C6791394745524949404358383340494649632233396053575860291Dallas North No.2 C63/C679
Rockwall Heath C69136444353474439394835334048504957283239534853NV58251Rockwall Heath C69
Grapevine Fairway C70/A301/X1821415547595148384357403540484151662334456460706668261Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711344744454541333338343541434347542631374946505856211Kaufman C71/A304/X071
Granbury C73/C6811343953444938333232363132353566522838534446619187341Granbury C73/C681
Eagle Mountain Lake C75 1325037534538333242322734353249642030464849655960251Eagle Mountain Lake C75
Parker County C761293341424434323035332832353056542630524243716065411Parker County C76
Cleburne Airport C77/C6821355054505037363336392934373564542238484446537972321Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3364948514845373749362938434352592335405649626665223Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402131454845443936343030273538NVNV532132404842567162221Dallas Executive Airport C402
Greenville C1006/A1981374342494244343740333339455246502327314543504161171Greenville C1006/A198
Pilot Point C10321494944585756525367554650534051672833376560606055261Pilot Point C1032
Italy C1044/A32313135464846353833363128353939465523353841NV485257131Italy C1044/A323
Corsicana Airport C10511313348454740313135333544504249522129344647444457231Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644220414249664727244125314641434264242532475760735462Longview C19/A127/C644
Tyler Airport Relocated C82123314759404534343628293236NANV492630354850595356221Tyler Airport Relocated C82
Karnack C85/AFHP3031353638364957384249424943425540522724312935NV343241Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X1512424846445043605550514242444675494955484853724754202El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X1591394339344236495142413735374162444657434554594250111Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 1394138384741534844443534394571495060495055663949141Chamizal C41/AH126
Socorro Hueco C49/F3121424442394237504945433836384357535857505268584351131Socorro Hueco C49/F312
Skyline Park C721424843415140575148474040384762535173NVNANV624556241Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N4134353136393433344035393436384352NVNANV48454754463BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141404339384435413736NV3130313755455057444554533746191Ivanhoe C414
Cd Juarez Delphi C6631 N30333127343139373332272829375838404637404748NVNANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Waco
Waco Mazanec C10371303441525034393738323029414847561938444444NV5158191Waco Mazanec C1037
Temple Georgia C10451343939435535404142362829394838502741494238456260251Temple Georgia C1045
Killeen Skylark Field C10471413841435440404344423030394836513137464539476360261Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 2213935506755311925252950503930592623284332354353322Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412273638485556372230252846474727542225263929383738162West Orange C9/A141
Port Arthur West C28/A128/A2281192842476251291822252041403029472921384523316255311Port Arthur West C28/A128/A228
Hamshire C64/C6541223032NVNANANANV25241934453632532722343928316448191Hamshire C64/C654
SETRPC Port Arthur C6281 N173035435547281519222036422924382720333724305050371SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C16541182245425754NV1319NVNANANV3540463224453322364664351SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N36394035636839213825404444502452232320352836353741SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643121313744625431192426254647NANV49262337482634NVNANA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 1233640556558332026262851523632552923354326344848321Nederland High School C1035
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Austin
Austin Northwest C3/A3222313545345133333333NV2627334742432432464437415561142Austin Northwest C3/A322
Audubon C381353845375234343635382931354633472224454443415653151Audubon C38
Fayette County C6012 N292836374730292931352631374336372635464131366160182Fayette County C601
Dripping Springs School C6141 N3333363547343335353828313849364328285345424061NVNA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N242129263927232727292123293432332326363529284747121CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N363741395138363940403132405036522933444536435448171CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N343543355235333636403030375048442730534541416357131Gorzycki Middle School C1603
Lockhart C16041 N25252729432826272931232431363632233147413433565181Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N26272830452926282932232529364031232345383429615291CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N18212320271818191920161519262123152124231921323181CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162284346515350NV213233305848453851NANV384136546575102Houston East C1/G316
Houston Aldine C8/AF108/X150 236513942555144253834376653483858123233374853557282Houston Aldine C8/AF108/X150
Channelview C15/AH115 326453844455029162530264555463760112328323254576373Channelview C15/AH115
Northwest Harris Co. C26/A110/X154223262929423726213027323332322637112128272429NVNV102Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391213442464641242125252444363440411423414426405770151Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4511831374847NV261922252440393144471621313423345968141Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1NANV56594136242122252238373943431327525729465750101Houston Bayland Park C53/A146
Conroe Relocated C78/A321148252936535945345542655043504459272728335843525071Conroe Relocated C78/A321
Manvel Croix Park C84121234953413622192728213233324339162353402331545191Manvel Croix Park C84
Clinton C403/C304/AH113 3NV354451404121142222194837312830102141422441546563Clinton C403/C304/AH113
Houston North Wayside C40512944404749473418323032615145NANV102430353653516811Houston North Wayside C405
Houston Monroe C40612128NV44383622142425183932313235132144502235536261Houston Monroe C406
Lang C4082324749475041332032313051443939481227464936506260152Lang C408
Houston Croquet C4092223454654235252123262135353640411426574726445249102Houston Croquet C409
Houston Westhollow C4101253655564438262128252635393642391628534926404948171Houston Westhollow C410
Houston Texas Avenue C411123404751NV392717292723493937374012253747NVNVNANANA1Houston Texas Avenue C411
Park Place C4161NANV50NANANANV212928225139393637142452612844616891Park Place C416
Sheldon C5511 N37544349NVNANANV11NVNANANANANANANANANANANV36364741Sheldon C551
Baytown Wetlands Center C5521 N214336424347272025262435443436441620283326474954141Baytown Wetlands Center C552
Crosby Library C5531 N374831404752372540383244544535581628233044444642191Crosby Library C553
West Houston C5541 N23283843373120152321223132273333102137372233433881West Houston C554
La Porte Sylvan Beach C5561 NNV3841494952292327292841433650531824323631445871201La Porte Sylvan Beach C556
Mercer Arboretum C5571 N41443636484843314538476150443160142428295242465771Mercer Arboretum C557
Tom Bass C5581 N17224347353118162423183128283333132146411931474991Tom Bass C558
Katy Park C5591 N2228395045352519232630333533313516254139243843NANA1Katy Park C559
Atascocita C5601 N35473138454940274036455050473153142425304643455951Atascocita C560
Meyer Park C5611 N383838365040342538323962403942551328353542415356131Meyer Park C561
Bunker Hill Village C5621 N243649483733281725262335363537371225444830405448121Bunker Hill Village C562
Huffman Wolf Road C5631 N37362633454839NVNANANANANANANANANANANANANA33NVNANA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N2544475147483219323329544944NV54112239393250647381HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N345344535359382537373049675442612027343947586160111Wallisville Road C617
Danciger C618 1 N17212649432421171828182527272828161840201724373121Danciger C618
Mustang Bayou C619 1 N182141554237231718271927343135331724453719234954101Mustang Bayou C619
Texas City 34th St. C620 1 N192542545245221619252339362951471528463720275670191Texas City 34th St. C620
UH Moody Tower C6951 N284560NVNVNV312434322659444346NV16NVNV6134537276251UH Moody Tower C695
U of H-Sugarland C6961 N182748644033221820NVNV27313439NV14NVNV3719353943141U of H-Sugarland C696
UH Coastal Center C6971 N172048524037211618261938332739NV17NVNV361923506991UH Coastal Center C697
UH WG Jones Forest C6981 N4733NV3654544333533963584647467621NVNV3658385258231UH WG Jones Forest C698
UH West Liberty C6991 N5046314057584538523836NV485636NV19NVNV3256384650121UH West Liberty C699
Lynchburg Ferry C1015/A165 121534043424725162426244145403550142028383057505791Lynchburg Ferry C1015/A165
Lake Jackson C1016 118192855472819161725192528232724162244231717373451Lake Jackson C1016
Baytown Garth C10171355143515254342335342845615139582026323744535755111Baytown Garth C1017
Galveston 99th St. C1034/A320/X1831191963625756281920282340352742592026584019255274321Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C232323642455434313232382830324641393327644647457059102San Antonio Northwest C23
Camp Bullis C58136424441603835373943313637553341342561504749645991Camp Bullis C58
Calaveras Lake C59127303340492926282935262730374030273154393331415171Calaveras Lake C59
Elm Creek Elementary C5011 N28323038473029303035282629384234313152393334585341Elm Creek Elementary C501
Fair Oaks Ranch C5021 N344142385534333536402935354727403822574746465252111Fair Oaks Ranch C502
Bulverde Elementary C5031 N33393634483434343637263036473537352152443939545391Bulverde Elementary C503
New Braunfels Airport C5041 N28313132472827303134252830373332242850393732615481New Braunfels Airport C504
City of Garden Ridge C5051 N22222426372422242427202226353426221843312927555041City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N29323335503129303236263033363733272851403733505891Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N3332414556332931323829313442NV322831534238335056101Heritage Middle School C622
CPS Pecan Valley C6781 N2629303646NV26272933252630404132292652403431585261CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4220NV224336211418172818151516201718253220NVNANANANA2Corpus Christi West C4
Corpus Christi Tuloso C21122242441392316191827201919192219191637241820242891Corpus Christi Tuloso C21
Victoria C871NV2229364522181818271617282729242038452824273336111Victoria C87
Inez C6091 N17182632362016171728151721212523182938212019283451Inez C609
Coleto C6241 N121318233215101312199913141713122124151216172111Coleto C624
Aransas Pass C6591 N221923494021121816291817141316161829331818151623141Aransas Pass C659
Holly Road C6601 N242424NVNANANANANA231412111013141522291815131417101Holly Road C660
Violet C6641 N20232336382113171625181516162017171938231818182741Violet C664
Ingleside C6851 N222123454124151917291918171519192027332119181824161Ingleside C685
Odem C6861 N222930403822161918271917181821201923372421182325101Odem C686
Taft C6871 N252428454126172020332120191823212225402523212530171Taft C687
Cuero C16021 N222729364627172425342326313334282338413026314145101Cuero C1602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431242925262820181922221718182026201941292117182327121Mission C43/AP143
Brownsville C80/AGP1801272921332721162026221713131520161822191720181616121Brownsville C80/AGP180
Harlingen Teege C10231NV3122342924222328232116192424212230302627242119121Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244127292527312426222624211919283331283536392727303761Laredo 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.