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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 2613435383135343730323334363836443435404047535047557359NA2Ft. Worth Northwest C13/AH302
Keller C172683729NANANV353734323233374140483539444250575149547256NA2Keller C17
Frisco C31/C6801764333384542384237353334404647533846495156685953445155NA1Frisco C31/C680
Midlothian OFW C52/A1371523133373331293132302729343430273534343538534938454543NA1Midlothian OFW C52/A137
Denton Airport South C56/A163/X157179453234354039443738363640494962395157535763565851NANVNA1Denton Airport South C56/A163/X157
Arlington Municipal Airport C611532833393029293028282527313228343332353340524640465249NA1Arlington Municipal Airport C61
Dallas North No.2 C63/C6791653531383835343533313031363839423640424547605547475556NA1Dallas North No.2 C63/C679
Rockwall Heath C6915731283733313231322827313034433237363842435451443950NVNA1Rockwall Heath C69
Grapevine Fairway C70/A301/X18217139313735363739NV343233374245493743NV4651605553476259NA1Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711523025333132333230272732293429263735344039525040354645NA1Kaufman C71/A304/X071
Granbury C73/C6811583530353538363737333337373832393435373744495743556052NA1Granbury C73/C681
Eagle Mountain Lake C75 16231263026NV30NV213716NV374047473641504651555552506754NA1Eagle Mountain Lake C75
Parker County C761563534333335343532333134333432433235403641465242496954NA1Parker County C76
Cleburne Airport C77/C6821633842453841394137384041444441374242454654615952616357NA1Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3623432393834333534332931363738403839424246575548526261NA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C4021543032383431303028312627323328324039434346595540475244NA1Dallas Executive Airport C402
Greenville C1006/A1981533526353535343526302834313549323535384142505141405147NA1Greenville C1006/A198
Pilot Point C10321754835354343434637413637404947644049565762675949454646NA1Pilot Point C1032
Italy C1044/A3231572832413529293033322630NVNV29273636343742565140404649NA1Italy C1044/A323
Corsicana Airport C10511603126363331313029272631303227273839354342605443334845NA1Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C6442483423252735362622223027342732273446453944515343504742NA2Longview C19/A127/C644
Tyler Airport Relocated C821523023302933352830223136342738243333363640515345385743NA1Tyler Airport Relocated C82
Karnack C85/AFHP3031494921342834342938252224283331293737394545515246383942NA1Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151245565556504949525549434249NV56715559675350566663NVNANANA2El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914154546157474650605041425149517258NV594643495456505653NA1Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 142575658555152535550444353NVNANANANANANANANANANANANANANA1Chamizal C41/AH126
Socorro Hueco C49/F3121434147596250505564524142514846555657NV4139444748474752NA1Socorro Hueco C49/F312
Skyline Park C721445251534847485153454540424346675360564941445149464752NA1Skyline Park C72
Ivanhoe C41414354525851504952594943NV484346615862554642445152464851NA1Ivanhoe C414
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Waco
Waco Mazanec C10371602827333830303031282629303137283735383743484633374946NA1Waco Mazanec C1037
Temple Georgia C10451583129324132323336262731333340313735373444484331415242NA1Temple Georgia C1045
Killeen Skylark Field C10471573331364340383635323236384037353736NV3742464430395240NA1Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 2602419222121192021181620201820323630323756442932204820NA2Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412483018212421192123201619201922293223284543463035214021NA2West Orange C9/A141
Port Arthur West C28/A128/A2281482219222422182020181720201919343424302850402834254621NA1Port Arthur West C28/A128/A228
Hamshire C64/C6541472021242322222223211923232123353427333346402730NV4721NA1Hamshire C64/C654
SETRPC Port Arthur C6281 N60352528404136232322NVNANANANANANANANANANANANANANANANANA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C16541452918202420161819171518222022353525332845422928324523NA1SETRPC 40 Sabine Pass C640/C1654
SETRPC 43 Jefferson Co Airport C643151231921242218202019162021201933332933NV60433034264922NA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 1552520222323192121191720202020333527323353442932234620NA1Nederland High School C1035
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Austin
Austin Northwest C3/A3222563126323629292830262630313233303736433745473831483636NA2Austin Northwest C3/A322
Audubon C381592927323733323131262631313331303637393643483831463831NA1Audubon C38
Fayette County C6012 N482121242321242222191825242121303232443239422924273026NA2Fayette County C601
Dripping Springs School C6141 N583436404336353334302632333531313835343542483829424131NA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N432221272724262424212025252522273128402933372824352828NA1CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N543128334034343233312630333634343538373843474131413933NA1CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N47272631353127282925138899101211363441443629423228NA1Gorzycki Middle School C1603
Lockhart C16041 N442324293224272425232226262624263331333238403125312924NA1Lockhart C1604
St. Edwards University C16051 N412222272924252324202024242422222926332833342721352627NA1St. Edwards University C1605
CAPCOG San Marcos Staples Road C16751 N462425293228282627242227282826273431313236403126332925NA1CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N502523283127272527222126272626253230342838403125393434NA1CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162572221242524252627191924262427493838263852673635333214NA2Houston East C1/G316
Houston Aldine C8/AF108/X150 26530232832272833332323NV31294059444728547283484424NANVNA2Houston Aldine C8/AF108/X150
Channelview C15/AH115 3462422252626252725211923262727483634273343543738293214NA3Channelview C15/AH115
Northwest Harris Co. C26/A110/X15426720192125212527241820NV242324453446325479653730293721NA2Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391381920232222212223181620212121443534263344543027293215NA1Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C451492220222521202120191619191921443230303039523025313420NA1Seabrook Friendship Park C45
Houston Bayland Park C53/A146 16122212524212426232019242221264432403847635533303634NVNA1Houston Bayland Park C53/A146
Conroe Relocated C78/A3211523526334336434337243442404435594444344148685443325024NA1Conroe Relocated C78/A321
Manvel Croix Park C841471920232223242425191928251921443332343647472923293625NA1Manvel Croix Park C84
Clinton C403/C304/AH113 3501919232020202123171619211820423031263849582927292514NA3Clinton C403/C304/AH113
Houston North Wayside C405154211619201820212215162020182745323022395361313028259NA1Houston North Wayside C405
Houston Monroe C4061441617202019192020161518201818362627253239422421273116NA1Houston Monroe C406
Lang C4082662624272822242828211925232628453438314974683934373017NA2Lang C408
Houston Croquet C4092502119222119212320171823201721392933323951462724303221NA2Houston Croquet C409
Houston Westhollow C4101602121242422242625191825252222413240404760523631343331NA1Houston Westhollow C410
Houston Texas Avenue C4111542218222321212424181724242028443135284457623129343016NA1Houston Texas Avenue C411
Park Place C4161541919222221212323171722231922423035274049572925343317NA1Park Place C416
Sheldon C5511 N382218202220202218151518202020382928132943513533262610NA1Sheldon C551
Baytown Wetlands Center C5521 N361918202017161918181517161718342828232434432925272816NA1Baytown Wetlands Center C552
Crosby Library C5531 N483129313332313334312727343135503837293550674545333118NA1Crosby Library C553
West Houston C5541 NNVNANANANANANANANANANANANANANANANANANANANANANANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N442020232320182020181618191919393029282839462824303218NA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 NNANANANANANANANANANANANANANV31583930153758794434253313NA1Mercer Arboretum C557
Tom Bass C5581 N381414161716161516111218171415322225243040382318252817NA1Tom Bass C558
Katy Park C5591 N541618211915171917171419181618312734333839372520282821NA1Katy Park C559
Atascocita C5601 N492724232825262927192227282534513639243951654238283017NA1Atascocita C560
Meyer Park C5611 N551918222623252624161823232025412933214360603429323016NA1Meyer Park C561
Bunker Hill Village C5621 N542120242418202222161621192122392836314564533229302520NA1Bunker Hill Village C562
Huffman Wolf Road C5631 N422924263424243131222122292831443429233041634636233515NA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N50212023232223242518NV21232226473637253950633536312913NA1HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N422523262724232627222118242429423735323244624245303621NA1Wallisville Road C617
Danciger C618 1 N40171922252120191918172117NV1734272428NV36412216332116NA1Danciger C618
Texas City 34th St. C620 1 N471821243125242423222022222118503534NV3843552825NV3523NA1Texas City 34th St. C620
UH Moody Tower C6951 N562119202120212223161623231825433036314354592926333417NA1UH Moody Tower C695
U of H-Sugarland C6961 N501819232221212122181520211918382831353446442924NV3226NA1U of H-Sugarland C696
UH Coastal Center C6971 N421719222722191918171518181717412626293442452520NVNVNVNA1UH Coastal Center C697
UH WG Jones Forest C6981 N57322632413640403724323838413665485133NV6178524335NVNANA1UH WG Jones Forest C698
UH West Liberty C6991 N37302224NVNANANANANANANANA2730413027252537544234233516NA1UH West Liberty C699
Lynchburg Ferry C1015/A165 1432222242424242622201821232422423333243142563336292916NA1Lynchburg Ferry C1015/A165
Lake Jackson C1016 1461720242822212019181720211817412726293235472418202520NA1Lake Jackson C1016
Baytown Garth C1017141242124242122242520NV222116294034NV293139624243303320NA1Baytown Garth C1017
Galveston 99th St. C1034/A320/X1831491924253225222220191820202027473530353843532821363528NA1Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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San Antonio
San Antonio Northwest C232492426323529292629252528303028303534323642473533402919NA2San Antonio Northwest C23
Camp Bullis C58 1522920364235343335302932343635354142354448564637423423NA1Camp Bullis C58
Calaveras Lake C591392325303226282526242326272625273230313338393027352325NA1Calaveras Lake C59
Elm Creek Elementary C5011 N392225323530302727262428292725283130293435373227362523NA1Elm Creek Elementary C501
Fair Oaks Ranch C5021 N522728344135353433293033353234343839344348574738343525NA1Fair Oaks Ranch C502
Bulverde Elementary C5031 N493131394436363335302932343435333837344044484232433424NA1Bulverde Elementary C503
New Braunfels Airport C5041 N412223293127272525222126262423263330293135373025302220NA1New Braunfels Airport C504
City of Garden Ridge C5051 N422526313427272628242326272724263330313438403227381810NA1City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N382323293127272525232226272424273430323236403125312119NA1Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N351923272823242223201923252222252927263035362725301918NA1Heritage Middle School C622
CPS Pecan Valley C6781 N392324303327262526232125262624253128293135372925332017NA1CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C42191820242321212017191922231719262321262629332420252323NA2Corpus Christi West C4
Corpus Christi Tuloso C211221820232221222118191923221720232322232932372720262320NA1Corpus Christi Tuloso C21
Victoria C87130202124242021211918161820161726282427273541282125NVNANA1Victoria C87
Inez C6091 N241819222320201917191620211717272622252230342115222217NA1Inez C609
Holly Road C6601 N123236403638NVNANANANANV251922312624283034382722282628NA1Holly Road C660
Violet C6641 NNANANANANA242623212322262520222526253130363927NVNANANANA1Violet C664
Ingleside C6851 N91113161512152015171619221517252118222327312119232423NA1Ingleside C685
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431201721212118181615191717171614221821242922282718221818NA1Mission C43/AP143
Brownsville C80/AGP1801181617222319201814181720191517171922202520231916201819NA1Brownsville C80/AGP180
Harlingen Teege C102312118182322202021171917211816NV222225242722232421221919NA1Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P2441261825252621232224191920222020222128202522182221232319NA1Laredo 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.