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Daily Maximum Eight-Hour Ozone Averages for July 2016

The table below lists the peak daily maximum eight-hour ozone concentrations measured in July 2016 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 2016POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 26134353831353437303233343638364434354040475350475573302Ft. Worth Northwest C13/AH302
Keller C172683729NANANV3537343232333741404835394442505751495472292Keller C17
Frisco C31/C68017643333845423842373533344046475338464951566859534451351Frisco C31/C680
Midlothian OFW C52/A13715231333733312931323027293434302735343435385349384545261Midlothian OFW C52/A137
Denton Airport South C56/A163/X157179453234354039443738363640494962395157535763565851NANA1Denton Airport South C56/A163/X157
Arlington Municipal Airport C6115328333930292930282825273132283433323533405246404652251Arlington Municipal Airport C61
Dallas North No.2 C63/C67916535313838353435333130313638394236404245476055474755251Dallas North No.2 C63/C679
Rockwall Heath C6915731283733313231322827313034433237363842435451443950191Rockwall Heath C69
Grapevine Fairway C70/A301/X18217139313735363739NV343233374245493743NV46516055534762291Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07115230253331323332302727322934292637353440395250403546221Kaufman C71/A304/X071
Granbury C73/C68115835303535383637373333373738323934353737444957435560321Granbury C73/C681
Eagle Mountain Lake C75 16231263026NV30NV213716NV3740474736415046515555525067311Eagle Mountain Lake C75
Parker County C7615635343333353435323331343334324332354036414652424969371Parker County C76
Cleburne Airport C77/C68216338424538413941373840414444413742424546546159526163341Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 36234323938343335343329313637384038394242465755485262253Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40215430323834313030283126273233283240394343465955404752251Dallas Executive Airport C402
Greenville C1006/A19815335263535353435263028343135493235353841425051414051231Greenville C1006/A198
Pilot Point C103217548353543434346374136374049476440495657626759494546251Pilot Point C1032
Italy C1044/A3231572832413529293033322630NVNV292736363437425651404046261Italy C1044/A323
Corsicana Airport C105116031263633313130292726313032272738393543426054433348241Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64424834232527353626222230273427322734464539445153435047122Longview C19/A127/C644
Tyler Airport Relocated C8215230233029333528302231363427382433333636405153453857241Tyler Airport Relocated C82
Karnack C85/AFHP30314949213428343429382522242833312937373945455152463839201Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151245565556504949525549434249NV56715559675350566663NVNANA2El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914154546157474650605041425149517258NV5946434954565056341Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 142575658555152535550444353NVNANANANANANANANANANANANANA1Chamizal C41/AH126
Socorro Hueco C49/F3121434147596250505564524142514846555657NV41394447484747391Socorro Hueco C49/F312
Skyline Park C7214452515348474851534545404243466753605649414451494647361Skyline Park C72
Ivanhoe C41414354525851504952594943NV4843466158625546424451524648421Ivanhoe C414
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Waco
Waco Mazanec C103716028273338303030312826293031372837353837434846333749231Waco Mazanec C1037
Temple Georgia C10451583129324132323336262731333340313735373444484331415261Temple Georgia C1045
Killeen Skylark Field C10471573331364340383635323236384037353736NV37424644303952191Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 26024192221211920211816202018203236303237564429322048142Beaumont-Downtown C2/A112/C2002
West Orange C9/A14124830182124211921232016192019222932232845434630352140122West Orange C9/A141
Port Arthur West C28/A128/A22814822192224221820201817202019193434243028504028342546181Port Arthur West C28/A128/A228
Hamshire C64/C6541472021242322222223211923232123353427333346402730NV47141Hamshire C64/C654
SETRPC Port Arthur C6281 N60352528404136232322NVNANANANANANANANANANANANANANANANA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C165414529182024201618191715182220223535253328454229283245231SETRPC 40 Sabine Pass C640/C1654
SETRPC 43 Jefferson Co Airport C643151231921242218202019162021201933332933NV604330342649171SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 15525202223231921211917202020203335273233534429322346161Nederland High School C1035
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Austin
Austin Northwest C3/A32225631263236292928302626303132333037364337454738314836172Austin Northwest C3/A322
Audubon C3815929273237333231312626313133313036373936434838314638111Audubon C38
Fayette County C6012 N4821212423212422221918252421213032324432394229242730102Fayette County C601
Dripping Springs School C6141 N5834364043363533343026323335313138353435424838294241121Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N4322212727242624242120252525222731284029333728243528161CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N5431283340343432333126303336343435383738434741314139181CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N472726313531272829251388991012113634414436294232131Gorzycki Middle School C1603
Lockhart C16041 N4423242932242724252322262626242633313332384031253129141Lockhart C1604
St. Edwards University C16051 N4122222729242523242020242424222229263328333427213526141St. Edwards University C1605
CAPCOG San Marcos Staples Road C16751 N4624252932282826272422272828262734313132364031263329111CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N5025232831272725272221262726262532303428384031253934171CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162572221242524252627191924262427493838263852673635333222Houston East C1/G316
Houston Aldine C8/AF108/X150 26530232832272833332323NV31294059444728547283484424NANA2Houston Aldine C8/AF108/X150
Channelview C15/AH115 3462422252626252725211923262727483634273343543738293253Channelview C15/AH115
Northwest Harris Co. C26/A110/X15426720192125212527241820NV242324453446325479653730293772Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391381920232222212223181620212121443534263344543027293271Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4514922202225212021201916191919214432303030395230253134141Seabrook Friendship Park C45
Houston Bayland Park C53/A146 16122212524212426232019242221264432403847635533303634NA1Houston Bayland Park C53/A146
Conroe Relocated C78/A32115235263343364343372434424044355944443441486854433250111Conroe Relocated C78/A321
Manvel Croix Park C8414719202322232424251919282519214433323436474729232936111Manvel Croix Park C84
Clinton C403/C304/AH113 3501919232020202123171619211820423031263849582927292533Clinton C403/C304/AH113
Houston North Wayside C4051542116192018202122151620201827453230223953613130282521Houston North Wayside C405
Houston Monroe C4061441617202019192020161518201818362627253239422421273161Houston Monroe C406
Lang C4082662624272822242828211925232628453438314974683934373032Lang C408
Houston Croquet C4092502119222119212320171823201721392933323951462724303282Houston Croquet C409
Houston Westhollow C41016021212424222426251918252522224132404047605236313433121Houston Westhollow C410
Houston Texas Avenue C4111542218222321212424181724242028443135284457623129343041Houston Texas Avenue C411
Park Place C4161541919222221212323171722231922423035274049572925343341Park Place C416
Sheldon C5511 N382218202220202218151518202020382928132943513533262631Sheldon C551
Baytown Wetlands Center C5521 N361918202017161918181517161718342828232434432925272871Baytown Wetlands Center C552
Crosby Library C5531 N4831293133323133343127273431355038372935506745453331111Crosby Library C553
West Houston C5541 NNVNANANANANANANANANANANANANANANANANANANANANANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N4420202323201820201816181919193930292828394628243032121La Porte Sylvan Beach C556
Mercer Arboretum C5571 NNANANANANANANANANANANANANANV31583930153758794434253311Mercer Arboretum C557
Tom Bass C5581 N381414161716161516111218171415322225243040382318252861Tom Bass C558
Katy Park C5591 N541618211915171917171419181618312734333839372520282881Katy Park C559
Atascocita C5601 N492724232825262927192227282534513639243951654238283051Atascocita C560
Meyer Park C5611 N551918222623252624161823232025412933214360603429323041Meyer Park C561
Bunker Hill Village C5621 N542120242418202222161621192122392836314564533229302551Bunker Hill Village C562
Huffman Wolf Road C5631 N422924263424243131222122292831443429233041634636233541Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N50212023232223242518NV21232226473637253950633536312921HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N4225232627242326272221182424294237353232446242453036101Wallisville Road C617
Danciger C618 1 N40171922252120191918172117NV1734272428NV36412216332191Danciger C618
Texas City 34th St. C620 1 N471821243125242423222022222118503534NV3843552825NV35161Texas City 34th St. C620
UH Moody Tower C6951 N562119202120212223161623231825433036314354592926333471UH Moody Tower C695
U of H-Sugarland C6961 N501819232221212122181520211918382831353446442924NV32131U of H-Sugarland C696
UH Coastal Center C6971 N421719222722191918171518181717412626293442452520NVNVNA1UH Coastal Center C697
UH WG Jones Forest C6981 N57322632413640403724323838413665485133NV6178524335NVNA1UH WG Jones Forest C698
UH West Liberty C6991 N37302224NVNANANANANANANANA2730413027252537544234233581UH West Liberty C699
Lynchburg Ferry C1015/A165 1432222242424242622201821232422423333243142563336292981Lynchburg Ferry C1015/A165
Lake Jackson C1016 14617202428222120191817202118174127262932354724182025181Lake Jackson C1016
Baytown Garth C1017141242124242122242520NV222116294034NV293139624243303391Baytown Garth C1017
Galveston 99th St. C1034/A320/X18314919242532252222201918202020274735303538435328213635221Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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San Antonio
San Antonio Northwest C2324924263235292926292525283030283035343236424735334029142San Antonio Northwest C23
Camp Bullis C58 1522920364235343335302932343635354142354448564637423491Camp Bullis C58
Calaveras Lake C5913923253032262825262423262726252732303133383930273523121Calaveras Lake C59
Elm Creek Elementary C5011 N3922253235303027272624282927252831302934353732273625111Elm Creek Elementary C501
Fair Oaks Ranch C5021 N522728344135353433293033353234343839344348574738343591Fair Oaks Ranch C502
Bulverde Elementary C5031 N493131394436363335302932343435333837344044484232433421Bulverde Elementary C503
New Braunfels Airport C5041 N412223293127272525222126262423263330293135373025302291New Braunfels Airport C504
City of Garden Ridge C5051 N422526313427272628242326272724263330313438403227381861City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N3823232931272725252322262724242734303232364031253121101Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N351923272823242223201923252222252927263035362725301991Heritage Middle School C622
CPS Pecan Valley C6781 N392324303327262526232125262624253128293135372925332061CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C421918202423212120171919222317192623212626293324202523192Corpus Christi West C4
Corpus Christi Tuloso C2112218202322212221181919232217202323222329323727202623181Corpus Christi Tuloso C21
Victoria C87130202124242021211918161820161726282427273541282125NVNA1Victoria C87
Inez C6091 N241819222320201917191620211717272622252230342115222281Inez C609
Holly Road C6601 N123236403638NVNANANANANV2519223126242830343827222826211Holly Road C660
Violet C6641 NNANANANANA242623212322262520222526253130363927NVNANANA1Violet C664
Ingleside C6851 N911131615121520151716192215172521182223273121192324181Ingleside C685
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP14312017212121181816151917171716142218212429222827182218141Mission C43/AP143
Brownsville C80/AGP18011816172223192018141817201915171719222025202319162018141Brownsville C80/AGP180
Harlingen Teege C102312118182322202021171917211816NV2222252427222324212219131Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P2441261825252621232224191920222020222128202522182221232351Laredo 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 - 0.054
51 - 100 Not Defined 0.055 - 0.070
101 - 150 0.125 - 0.164 0.071 - 0.085
151 - 200 0.165 - 0.204 0.086 - 0.105
201 - 300 0.205 - 0.404 0.106 - 0.200
301 - 400 0.405 - 0.504 Not Defined
401 - 500 Not Defined 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.