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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 24073596032NA3838624433454344616832395759552Ft. Worth Northwest C13/AH302
Keller C1724166516250514145654635434942556828355160582Keller C17
Frisco C31/C68015455506458565864825349576659587642354272661Frisco C31/C680
Midlothian OFW C52/A13713556555146434643453836384839565831424946561Midlothian OFW C52/A137
Denton Airport South C56/A163/X15715358477458574660845144486144559035344875851Denton Airport South C56/A163/X157
Arlington Municipal Airport C6113658625345414039413633363936575827355051481Arlington Municipal Airport C61
Dallas North No.2 C63/C67914654505652534449744335455260557233374264NA1Dallas North No.2 C63/C679
Rockwall Heath C691NA50485649454342644039445461516042344259501Rockwall Heath C69
Grapevine Fairway C70/A301/X18214462526854504853794339445950557332385069691Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07114451464749433535423838514747555934333956531Kaufman C71/A304/X071
Granbury C73/C68114055625352403635364634384037755837435947501Granbury C73/C681
Eagle Mountain Lake C75 13559445747424135543828413936537228335155561Eagle Mountain Lake C75
Parker County C7613341494446363733414130393934606034336446491Parker County C76
Cleburne Airport C77/C68214158645452404843495032404337736136435350501Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 34155545652484541684231424649576730404560523Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40213454585051414441383630384439545928364551461Dallas Executive Airport C402
Greenville C1006/A19814449465246453741463635435164505336313649481Greenville C1006/A198
Pilot Point C103215953496260615863826450597043567330373972731Pilot Point C1032
Italy C1044/A32313441515548384638423330424641545940394045461Italy C1044/A323
Corsicana Airport C105113535534752433736373942615846525832313750581Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64422247475374513027522934564446487927263553722Longview C19/A127/C644
Tyler Airport Relocated C82128375367444941414236353339NA515332343855571Tyler Airport Relocated C82
Karnack C85/AFHP30314040423851704752616060484669465530303331381Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X15124452504658466760556045494854875452605251572El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914046433644395591464539404146734850684749661Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 14545434151436053485340434351815553685453621Chamizal C41/AH126
Socorro Hueco C49/F31214547464147395253494540424047666166635757761Socorro Hueco C49/F312
Skyline Park C72146524544554361575451414241517055558052NA611Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N453936333845383637423740363940475446NA55503BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C41414347424047394440373833343243654957664848671Ivanhoe C414
Cd Juarez Delphi C6631 N3335353137334439363829313240664544514144561Cd Juarez Delphi C663
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Waco
Waco Mazanec C103713537476352364842473632324551556134434749481Waco Mazanec C1037
Temple Georgia C104513651494959394848503931344454465434455547431Temple Georgia C1045
Killeen Skylark Field C104714841494856425350524935344259435539395049461Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 22455417580583422273741725747367135264749442Beaumont-Downtown C2/A112/C2002
West Orange C9/A14123250447063594227413031565956307027283842362West Orange C9/A141
Port Arthur West C28/A128/A22812339466266553223243625574834344934256057291Port Arthur West C28/A128/A228
Hamshire C64/C654124363574NANANA22273022394847395732264143321Hamshire C64/C654
SETRPC Port Arthur C6281 N2244465358523620212824545233314234255152361SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654120275848645635192228NANA3439485040286939251SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N4651504369744526483748605758296129302841341SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643125454969696134242635316255NA365435276058331SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12651568375684328314234676141376036266150371Nederland High School C1035
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32223345513953353736354029313958584832345246412Austin Northwest C3/A322
Audubon C3813756534154373739404232333961435332295049471Audubon C38
Fayette County C6012 N3330434655363231384333344148424229384946332Fayette County C601
Dripping Springs School C6141 N3737433950373538394230354058404835325650481Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N2623383242292629303623263539353727303937331CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N4147464756434442434534334267536235364952391CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N3844504355373837384532354359614835345648451Gorzycki Middle School C1603
Lockhart C16041 N2927303648302929323925273641413626354948381Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N3130323447313231323826283441443629264945391CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N1925272328211921222518182029262517242725211CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G316245778458666334244241358464595481NA365052502Houston East C1/G316
Houston Aldine C8/AF108/X150 25770504667635230444749807169509319403942682Houston Aldine C8/AF108/X150
Channelview C15/AH115 34277655253614221414731608662478936373841533Channelview C15/AH115
Northwest Harris Co. C26/A110/X15423243393550433024363536453940325216243331282Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP23912753565250492926343228514038506032275164341Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4512042465453323122273327504637586633253841341Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1NA57886853412925233126454550545418356378371Houston Bayland Park C53/A146
Conroe Relocated C78/A32115931353963706137735776645961576844303435631Conroe Relocated C78/A321
Manvel Croix Park C8412627735953402422303525393842554320306047271Manvel Croix Park C84
Clinton C403/C304/AH113 33274736156502616272722694540455730265250333Clinton C403/C304/AH113
Houston North Wayside C40514472615467614322423937776961NA7125343237481Houston North Wayside C405
Houston Monroe C40612440354947412619323020503737394827285263251Houston Monroe C406
Lang C40824178805172464329414135725553556433385360452Lang C408
Houston Croquet C40922748807753412823253324414246505020347071302Houston Croquet C409
Houston Westhollow C41013250706456433124363131424848514822326274291Houston Westhollow C410
Houston Texas Avenue C41113367915854443122333226674450526228314554301Houston Texas Avenue C411
Park Place C4161NA1585NANANA3225373424594446466333326476321Park Place C416
Sheldon C5511 N5571545361NANA935NANANANANANANANANANANA471Sheldon C551
Baytown Wetlands Center C5521 N2463495149533522343525455443435641233340361Baytown Wetlands Center C552
Crosby Library C5531 N5362384551605333625236587559426728402833641Crosby Library C553
West Houston C5541 N3448584754362218312626384136423816244150241West Houston C554
La Porte Sylvan Beach C5561 N2551595357593726333533495140547441263743401La Porte Sylvan Beach C556
Mercer Arboretum C5571 N5554504057605538544859826662488421303035671Mercer Arboretum C557
Tom Bass C5581 N2031715143352219302922423534464223275559251Tom Bass C558
Katy Park C5591 N2541535356412722273241373944394221294546311Katy Park C559
Atascocita C5601 N5372424252685433525152617359466420322732601Atascocita C560
Meyer Park C5611 N5364533862465031534546795050487528443939631Meyer Park C561
Bunker Hill Village C5621 N2962735751373826313126424748514920315260361Bunker Hill Village C562
Huffman Wolf Road C5631 N4957354051575121NANANANANANANANANANANANANA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N4079776061613924444935746556528128314749431HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N4271655956674931595532679568507744324447671Wallisville Road C617
Danciger C618 1 N1836346153302318203421323333333518244424191Danciger C618
Mustang Bayou C619 1 N2229565953432820223326333743434020265348241Mustang Bayou C619
Texas City 34th St. C620 1 N2034586260502621202826504535595529315047251Texas City 34th St. C620
UH Moody Tower C6951 N35731037963493429403829794855556936382773431UH Moody Tower C695
U of H-Sugarland C6961 N2234587948412519272729303640504119264544221U of H-Sugarland C696
UH Coastal Center C6971 N1827616050452520213222543530494523253645221UH Coastal Center C697
UH WG Jones Forest C6981 N6238463857646236695574795458539035322440691UH WG Jones Forest C698
UH West Liberty C6991 N6374404863686444764940427479437226402134711UH West Liberty C699
Lynchburg Ferry C1015/A165 12780645044573824373528556149427135253449451Lynchburg Ferry C1015/A165
Lake Jackson C1016 11821316053342116193022303626313317265136181Lake Jackson C1016
Baytown Garth C101714269615754624329565130648664487740303944641Baytown Garth C1017
Galveston 99th St. C1034/A320/X18312021846960603424223029534032466431296445211Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2323539485559373635364431323553524637367151562San Antonio Northwest C23
Camp Bullis C5814047555266414140424834424063404845327156521Camp Bullis C58
Calaveras Lake C5913333424956313031353927293442473630366445381Calaveras Lake C59
Elm Creek Elementary C5011 N3235324550323133333931313344493735385744381Elm Creek Elementary C501
Fair Oaks Ranch C5021 N3846484862383739394432393856345047336454491Fair Oaks Ranch C502
Bulverde Elementary C5031 N3746414252374037404028334155424145245747431Bulverde Elementary C503
New Braunfels Airport C5041 N3333363649313134343927343644433630345442401New Braunfels Airport C504
City of Garden Ridge C5051 N2926313541272828303222253041393026244635321City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N3237423952333334354028373844433731345745411Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N4137565467353336404731333849533932366146411Heritage Middle School C622
CPS Pecan Valley C6781 N2932414852322929323826303347603533345544381CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C422219274743241619183222161818221919323824202Corpus Christi West C4
Corpus Christi Tuloso C2112429364643251821203022202424232121294428221Corpus Christi Tuloso C21
Victoria C8712325353956242220213118203538332721465132251Victoria C87
Inez C6091 N1921323641221918183318222423282919344625211Inez C609
Coleto C6241 N1415223338161214132119111519221514293017141Coleto C624
Aransas Pass C6591 N2420315150261521173421211816171720323721221Aransas Pass C659
Holly Road C6601 N25272833NANANANANA2815131412161517283622181Holly Road C660
Violet C6641 N2226304041231718172819161819241919274429211Violet C664
Ingleside C6851 N2623324849271721183220201818202121343925221Ingleside C685
Odem C6861 N2732404743252022223021212524262721294332231Odem C686
Taft C6871 N2625354846281921213722232220272424364830261Taft C687
Cuero C16021 N2533334252322027283726313744413126464536321Cuero C1602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP14312834293134212121242819232323292220483324191Mission C43/AP143
Brownsville C80/AGP18012935263731231722282819141516221719272119251Brownsville C80/AGP180
Harlingen Teege C102312636263732252425313023182328272423373528311Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P24412931283033272824282823232132373432453842301Laredo 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.