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Peak Daily One-Hour Ozone Averages for July 2014

The table below lists the peak daily one-hour ozone concentrations measured in July 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 SitePOCJuly 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 24073596032NA38386244334543446168323957595597105966745472Ft. Worth Northwest C13/AH302
Keller C1724166516250514145654635434942556828355160588584787047502Keller C17
Frisco C31/C68015455506458565864825349576659587642354272666461669157601Frisco C31/C680
Midlothian OFW C52/A13713556555146434643453836384839565831424946565473706046401Midlothian OFW C52/A137
Denton Airport South C56/A163/X15715358477458574660845144486144559035344875857968698357491Denton Airport South C56/A163/X157
Arlington Municipal Airport C6113658625345414039413633363936575827355051486795785842401Arlington Municipal Airport C61
Dallas North No.2 C63/C67914654505652534449744335455260557233374264606764648049491Dallas North No.2 C63/C679
Rockwall Heath C6913750485649454342644039445461516042344259505862647044431Rockwall Heath C69
Grapevine Fairway C70/A301/X18214462526854504853794339445950557332385069698380727749561Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07114451464749433535423838514747555934333956535666596844431Kaufman C71/A304/X071
Granbury C73/C6811405562535240363536463438403775583743594750681131016242421Granbury C73/C681
Eagle Mountain Lake C75 13559445747424135543828413936537228335155568067695941451Eagle Mountain Lake C75
Parker County C7613341494446363733414130393934606034336446498969736141411Parker County C76
Cleburne Airport C77/C68214158645452404843495032404337736136435350506185835946411Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 34155545652484541684231424649576730404560526871697248453Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40213454585051414441383630384439545928364551466281656744391Dallas Executive Airport C402
Greenville C1006/A19814449465246453741463635435164505336313649485647706548411Greenville C1006/A198
Pilot Point C103215953496260615863826450597043567330373972736965589663491Pilot Point C1032
Italy C1044/A32313441515548384638423330424641545940394045465257605942371Italy C1044/A323
Corsicana Airport C105113535534752433736373942615846525832313750585147626338421Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64422247475374513027522934564446487927263553726787675731242Longview C19/A127/C644
Tyler Airport Relocated C82128375367444941414236353339NA515332343855576758615936421Tyler Airport Relocated C82
Karnack C85/AFHP30314040423851704752616060484669465530303331384538367671511Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151244525046584667605560454948548754526052515710051577974732El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914046433644395591464539404146734850684749667345526366601Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 14545434151436053485340434351815553685453628149537272691Chamizal C41/AH126
Socorro Hueco C49/F31214547464147395253494540424047666166635757766650535563561Socorro Hueco C49/F312
Skyline Park C72146524544554361575451414241517055558052NA617447616971621Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N453936333845383637423740363940475446NA55505151565452523BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C41414347424047394440373833343243654957664848676239505655591Ivanhoe C414
Cd Juarez Delphi C6631 N333535313733443936382931324066454451414456574241NANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Waco
Waco Mazanec C1037135374763523648424736323245515561344347494858546659NANA1Waco Mazanec C1037
Temple Georgia C104513651494959394848503931344454465434455547435070656243411Temple Georgia C1045
Killeen Skylark Field C104714841494856425350524935344259435539395049465470647048501Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 22455417580583422273741725747367135264749444647656329262Beaumont-Downtown C2/A112/C2002
West Orange C9/A14123250447063594227413031565956307027283842364641407830272West Orange C9/A141
Port Arthur West C28/A128/A22812339466266553223243625574834344934256057293870685924251Port Arthur West C28/A128/A228
Hamshire C64/C654124363574NANANA22273022394847395732264143323378627527261Hamshire C64/C654
SETRPC Port Arthur C6281 N2244465358523620212824545233314234255152363563675523111SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654120275848645635192228NANA3439485040286939254151725824281SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N4651504369744526483748605758296129302841344743425034261SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643125454969696134242635316255NA365435276058334265NANANANA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12651568375684328314234676141376036266150374062626129251Nederland High School C1035
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32223345513953353736354029313958584832345246414558765039352Austin Northwest C3/A322
Audubon C3813756534154373739404232333961435332295049475358615437381Audubon C38
Fayette County C6012 N3330434655363231384333344148424229384946334069684832322Fayette County C601
Dripping Springs School C6141 N3737433950373538394230354058404835325650484866785039371Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N2623383242292629303623263539353727303937333252514633311CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N4147464756434442434534334267536235364952395458556342421CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N3844504355373837384532354359614835345648454868724535351Gorzycki Middle School C1603
Lockhart C16041 N2927303648302929323925273641413626354948383760544436311Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N3130323447313231323826283441443629264945393372563731301CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N1925272328211921222518182029262517242725212436383122221CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G316245778458666334244241358464595481NA365052507673906730292Houston East C1/G316
Houston Aldine C8/AF108/X150 25770504667635230444749807169509319403942686366847635362Houston Aldine C8/AF108/X150
Channelview C15/AH115 34277655253614221414731608662478936373841536565847229283Channelview C15/AH115
Northwest Harris Co. C26/A110/X15423243393550433024363536453940325216243331283548615528282Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP23912753565250492926343228514038506032275164345061834823221Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4512042465453323122273327504637586633253841344464794726261Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1NA57886853412925233126454550545418356378375678565124261Houston Bayland Park C53/A146
Conroe Relocated C78/A32115931353963706137735776645961576844303435635358557343441Conroe Relocated C78/A321
Manvel Croix Park C8412627735953402422303525393842554320306047274358573921211Manvel Croix Park C84
Clinton C403/C304/AH113 33274736156502616272722694540455730265250336569784422233Clinton C403/C304/AH113
Houston North Wayside C40514472615467614322423937776961NA7125343237486763806528291Houston North Wayside C405
Houston Monroe C40612440354947412619323020503737394827285263254563754120191Houston Monroe C406
Lang C40824178805172464329414135725553556433385360455868766531342Lang C408
Houston Croquet C40922748807753412823253324414246505020347071305762574922232Houston Croquet C409
Houston Westhollow C41013250706456433124363131424848514822326274295365565124221Houston Westhollow C410
Houston Texas Avenue C411133679158544431223332266744505262283145543069NANANANANA1Houston Texas Avenue C411
Park Place C4161NA1585NANANA3225373424594446466333326476326171795224231Park Place C416
Sheldon C5511 N5571545361NANA935NANANANANANANANANANANA474646655624271Sheldon C551
Baytown Wetlands Center C5521 N2463495149533522343525455443435641233340366955595623271Baytown Wetlands Center C552
Crosby Library C5531 N53623845516053336252365875594267284028336452506623NANA1Crosby Library C553
West Houston C5541 N3448584754362218312626384136423816244150243867454019201West Houston C554
La Porte Sylvan Beach C5561 N2551595357593726333533495140547441263743406866815129281La Porte Sylvan Beach C556
Mercer Arboretum C5571 N5554504057605538544859826662488421303035675150768335411Mercer Arboretum C557
Tom Bass C5581 N2031715143352219302922423534464223275559253858553719181Tom Bass C558
Katy Park C5591 N254153535641272227324137394439422129454631475727NANANA1Katy Park C559
Atascocita C5601 N5372424252685433525152617359466420322732605050828038381Atascocita C560
Meyer Park C5611 N5364533862465031534546795050487528443939634758696929281Meyer Park C561
Bunker Hill Village C5621 N2962735751373826313126424748514920315260365070575924271Bunker Hill Village C562
Huffman Wolf Road C5631 N4957354051575121NANANANANANANANANANANANANA3941NANANANA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N4079776061613924444935746556528128314749436670886929281HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N4271655956674931595532679568507744324447677067699532391Wallisville Road C617
Danciger C618 1 N1836346153302318203421323333333518244424193346363318181Danciger C618
Mustang Bayou C619 1 N2229565953432820223326333743434020265348243159673622231Mustang Bayou C619
Texas City 34th St. C620 1 N2034586260502621202826504535595529315047253865924225211Texas City 34th St. C620
UH Moody Tower C6951 N35731037963493429403829794855556936382773436986906428261UH Moody Tower C695
U of H-Sugarland C6961 N2234587948412519272729303640504119264544224246493721191U of H-Sugarland C696
UH Coastal Center C6971 N1827616050452520213222543530494523253645222855963721211UH Coastal Center C697
UH WG Jones Forest C6981 N6238463857646236695574795458539035322440694457628635401UH WG Jones Forest C698
UH West Liberty C6991 N6374404863686444764940427479437226402134714749528547521UH West Liberty C699
Lynchburg Ferry C1015/A165 12780645044573824373528556149427135253449457854656624221Lynchburg Ferry C1015/A165
Lake Jackson C1016 11821316053342116193022303626313317265136181939432418171Lake Jackson C1016
Baytown Garth C101714269615754624329565130648664487740303944646564628631361Baytown Garth C1017
Galveston 99th St. C1034/A320/X18312021846960603424223029534032466431296445212856805221211Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2323539485559373635364431323553524637367151565279645239362San Antonio Northwest C23
Camp Bullis C5814047555266414140424834424063404845327156525676696245411Camp Bullis C58
Calaveras Lake C5913333424956313031353927293442473630366445383749584234321Calaveras Lake C59
Elm Creek Elementary C5011 N3235324550323133333931313344493735385744383774694838341Elm Creek Elementary C501
Fair Oaks Ranch C5021 N3846484862383739394432393856345047336454495566586144411Fair Oaks Ranch C502
Bulverde Elementary C5031 N3746414252374037404028334155424145245747434560575942411Bulverde Elementary C503
New Braunfels Airport C5041 N3333363649313134343927343644433630345442403571594636331New Braunfels Airport C504
City of Garden Ridge C5051 N2926313541272828303222253041393026244635323065543829271City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N3237423952333334354028373844433731345745413755634738351Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N4137565467353336404731333849533932366146413855634537351Heritage Middle School C622
CPS Pecan Valley C6781 N2932414852322929323826303347603533345544383672594637331CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4222192747432416191832221618182219193238242015NANA1922202Corpus Christi West C4
Corpus Christi Tuloso C2112429364643251821203022202424232121294428222134464322211Corpus Christi Tuloso C21
Victoria C8712325353956242220213118203538332721465132253841463220211Victoria C87
Inez C6091 N1921323641221918183318222423282919344625212336392519201Inez C609
Coleto C6241 N1415223338161214132119111519221514293017142823271915121Coleto C624
Aransas Pass C6591 N2420315150261521173421211816171720323721221618291818191Aransas Pass C659
Holly Road C6601 N25272833NANANANANA2815131412161517283622181516234417171Holly Road C660
Violet C6641 N2226304041231718172819161819241919274429212326374621191Violet C664
Ingleside C6851 N2623324849271721183220201818202121343925221921322820201Ingleside C685
Odem C6861 N2732404743252022223021212524262721294332232033364323201Odem C686
Taft C6871 N2625354846281921213722232220272424364830262335384724241Taft C687
Cuero C16021 N2533334252322027283726313744413126464536323953504033301Cuero C1602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431283429313421212124281923232329222048332419202734NANANA1Mission C43/AP143
Brownsville C80/AGP18012935263731231722282819141516221719272119251918192323231Brownsville C80/AGP180
Harlingen Teege C102312636263732252425313023182328272423373528312531262226251Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P24412931283033272824282823232132373432453842302936413433271Laredo 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.