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Peak Daily One-Hour Ozone Averages for July 2016

The table below lists the peak daily one-hour ozone concentrations measured in July 2016 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 2016POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 267394141404141443837383842454149363946445258535364847152562Ft. Worth Northwest C13/AH302
Keller C172734134NANA4039433734363542465658394450465263555669836357582Keller C17
Frisco C31/C680192493645534642494438373643545466445657636572635949576674681Frisco C31/C680
Midlothian OFW C52/A137155423341443534373735323237403535393844384161554265474637351Midlothian OFW C52/A137
Denton Airport South C56/A163/X157191513942394443514341393943585975425663585965607060NA62NA591Denton Airport South C56/A163/X157
Arlington Municipal Airport C61155373043393132384233282934383343383543374461524468595843431Arlington Municipal Airport C61
Dallas North No.2 C63/C679176423246453937413935323340445345444448535466585463587568681Dallas North No.2 C63/C679
Rockwall Heath C69163352842363537354031313632424735434042525063574845555760691Rockwall Heath C69
Grapevine Fairway C70/A301/X182182463843444140473737353743486764404652515466606060707861631Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071156342735353640353630343832453431434239494657574441494838391Kaufman C71/A304/X071
Granbury C73/C681164413341474543474437384340483547373740425158615071656041401Granbury C73/C681
Eagle Mountain Lake C75 170343336333837473040214044516858394658485562586158826257501Eagle Mountain Lake C75
Parker County C76159445040394040393934334036434047353845394651584864845852441Parker County C76
Cleburne Airport C77/C682170453850474747484242454451514847464654516268655678715849441Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 371423445453735394339323340414847434448485068595274707263663Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402157383041423331333937282936363340464347464867614369564843431Dallas Executive Airport C402
Greenville C1006/A198158402941414340443134374234395339453642464555554446575057661Greenville C1006/A198
Pilot Point C1032190523639494746544546404045575779455967646973675949535260601Pilot Point C1032
Italy C1044/A323164302946413232313838293434343531414648454767624646495334421Italy C1044/A323
Corsicana Airport C1051169332941393537363729293533373236444545495770706838515135411Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644253412532324442282325383837344132386352424657584964574728412Longview C19/A127/C644
Tyler Airport Relocated C82156322533363842353730434144304929353645384355595244624726451Tyler Airport Relocated C82
Karnack C85/AFHP303151542445314340364935242732393834444443504866654941435737451Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151250595865645151556351464454536697676982625462717651NANA64512El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159147585766725149566955434661526199647765524853606453705964511Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 14760586670535456645245455853NANANANANANANANANANANANANANANA1Chamizal C41/AH126
Socorro Hueco C49/F312152445266725554597558434563624857647259434245565150515862481Socorro Hueco C49/F312
Skyline Park C72149545258544951535748484646474984616565524448575449515557501Skyline Park C72
Ivanhoe C414148575365655351546854454455475078617563494346565849555359481Ivanhoe C414
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Waco
Waco Mazanec C1037165332938453233323732293332344331393843404552523843585236401Waco Mazanec C1037
Temple Georgia C1045165383235483435383828293436364839413840374852493849604939451Temple Georgia C1045
Killeen Skylark Field C1047163393439524643454136374043474946394044434750513441574637491Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 275302024232421232220172321202434383938437360324327662129332Beaumont-Downtown C2/A112/C2002
West Orange C9/A141254342023272722233325172023222938352832694861355027532431362West Orange C9/A141
Port Arthur West C28/A128/A228153252123272720252320182222212136382534305546314730542236271Port Arthur West C28/A128/A228
Hamshire C64/C654152222326242625252523222925222538383338385050313534602339331Hamshire C64/C654
SETRPC Port Arthur C6281 N9139263142434025282320NANANANANANANANANANANANANANANANANANA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654148332022262719212118162024222337382736315544313135642534281SETRPC 40 Sabine Pass C640/C1654
SETRPC 43 Jefferson Co Airport C643158292123292622232221182222222235363438336950355032602435291SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 165302224242622242321192222212337383136406450354332622232261Nederland High School C1035
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Austin
Austin Northwest C3/A322261352834393332313231293233343832393846385149453460424535492Austin Northwest C3/A322
Audubon C38163333036403635343330283334353736393942405151423560463836431Audubon C38
Fayette County C6012 N50232325272326262620202726242331343753354347342832342929302Fayette County C601
Dripping Springs School C6141 N60373745463838363632283635383335413739385053433149513839421Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N45242429322629272624232727282530323146323639312750393227341CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N58343035453836353754313335394143374142425255513647454137541CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N512928333733303031271699101111131242374647403148423530391Gorzycki Middle School C1603
Lockhart C16041 N48262631372729272825262728292731353440364046342836323530361Lockhart C1604
St. Edwards University C16051 N45242329332727252522232626262525302836313735292441313228311St. Edwards University C1605
CAPCOG San Marcos Staples Road C16751 N51252732363132282926243031312832373436334149342836323032361CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N52262531342929273028242828282928353340294145342945433941391CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162742623262726293032232428302638564559395081100465142462130472Houston East C1/G316
Houston Aldine C8/AF108/X150 2703625303730313839273035353455735763376887110575537NA2637722Houston Aldine C8/AF108/X150
Channelview C15/AH115 350312527302931333223232728293554465437446782496340361832573Channelview C15/AH115
Northwest Harris Co. C26/A110/X1542722222232823323326202427272628534455466311385534235493125612Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239146222125242425272622192222252352403929376768373538402056301Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45153282125262722232321172120242750363732344557353440452756351Seabrook Friendship Park C45
Houston Bayland Park C53/A146 171262429282326302724242724253451375368607964383739443433431Houston Bayland Park C53/A146
Conroe Relocated C78/A321157473440534348574626404943555272545038465892686639622934411Conroe Relocated C78/A321
Manvel Croix Park C84150212125252326292922223229212549373841425652342835413236391Manvel Croix Park C84
Clinton C403/C304/AH113 358252124222223252820192224212949355341607789353238362122353Clinton C403/C304/AH113
Houston North Wayside C405165271722242022252618202422214153414937497485393636311617521Houston North Wayside C405
Houston Monroe C406149191922202323242318182123202143303234365448292440422228271Houston Monroe C406
Lang C4082823127313526273136262327263439514656526711697484544402831552Lang C408
Houston Croquet C409259222124252024292221222623202547334449436252312735403134382Houston Croquet C409
Houston Westhollow C410177232325272527312821212827252644374866597359464141424232361Houston Westhollow C410
Houston Texas Avenue C4111592519242623242826222128272236503850386510091373238372731401Houston Texas Avenue C411
Park Place C416162212023232425272719212424212951354143518166343046492530321Park Place C416
Sheldon C5511 N40272022272224262518182223243144374321385669464833331427471Sheldon C551
Baytown Wetlands Center C5521 N39282124232218212022181918222340323225275050352938311839331Baytown Wetlands Center C552
Crosby Library C5531 N50413134423739404334343135394752484634485892635837372237561Crosby Library C553
West Houston C5541 N34NANANANANANANANANANANANANANANANANANANANANANANANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N48302126252420242121172120222645333830324650323341382261361La Porte Sylvan Beach C556
Mercer Arboretum C5571 NNANANANANANANANANANANANANA3747715244224769108564733432023371Mercer Arboretum C557
Tom Bass C5581 N41151518181918181813142119151937273236335042272232362326281Tom Bass C558
Katy Park C5591 N75222932231821262221182120182034293952525042342431383023391Katy Park C559
Atascocita C5601 N53305225332830343623273130284858474730505988515732372125531Atascocita C560
Meyer Park C5611 N59232226342728343018212526263649414329607690454140362521391Meyer Park C561
Bunker Hill Village C5621 N64242428302221252918202421273142344050599665393935343224361Bunker Hill Village C562
Huffman Wolf Road C5631 N44392729412829413925262732374050413637424787594727462432461Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N57262324262527283121162426243654425435597589495039341828491HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N46312532322627303225232326303646424835405393536838452533411Wallisville Road C617
Danciger C618 1 N44202125272522212121192320181836293031304346282097252141NA1Danciger C618
Texas City 34th St. C620 1 N50342225353426262424222525232055403737425163303145452954261Texas City 34th St. C620
UH Moody Tower C6951 N67242122242323262520202725203250384644589677332941452630371UH Moody Tower C695
U of H-Sugarland C6961 N56202124252425262520172224222042333544365248322825373932321U of H-Sugarland C696
UH Coastal Center C6971 N46191924282921202019172021192346283131384949262528402735221UH Coastal Center C697
UH WG Jones Forest C6981 N663531385241475146263542425455765958394573104686543612834461UH WG Jones Forest C698
UH West Liberty C6991 N4036252935NANANANANANANANA353645353632304271504527432035431UH West Liberty C699
Lynchburg Ferry C1015/A165 147282326272627292823212424282848394627406085415741342129431Lynchburg Ferry C1015/A165
Lake Jackson C1016 153202127292923222021182223191945303331344054262026322827221Lake Jackson C1016
Baytown Garth C1017145292329292725272924222523213445383634414595546838422432611Baytown Garth C1017
Galveston 99th St. C1034/A320/X183153412428353425242221272322212054413138434658312640493343301Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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San Antonio
San Antonio Northwest C23257273037403231283328273032323132373935414852393757473135482San Antonio Northwest C23
Camp Bullis C58 156363142493837353932313436393942464538505161514258422944581Camp Bullis C58
Calaveras Lake C59145242833352731292826252928282731343434364244333249322933401Calaveras Lake C59
Elm Creek Elementary C5011 N44253037393232293130283031292930343233374040362845303432391Elm Creek Elementary C501
Fair Oaks Ranch C5021 N56313240503838363932333538413940454338505464554752393037551Fair Oaks Ranch C502
Bulverde Elementary C5031 N52353844513942384133323537424039404038445455493855392842521Bulverde Elementary C503
New Braunfels Airport C5041 N45242631352830282725232728272630383333343942322733292626381New Braunfels Airport C504
City of Garden Ridge C5051 N46272934362931303126243030302729363333354546343044251838411City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N41252531342931282925242829282732363234364248332836242527341Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N39222530322528272624232726252428323131324039292936252429261Heritage Middle School C622
CPS Pecan Valley C6781 N42262832352928272925232728272729333232344042312742312731371CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4221182226242425232020202626192129252331303235282227242126252Corpus Christi West C4
Corpus Christi Tuloso C21125192225242225232121212626192125242430333640402328252126271Corpus Christi Tuloso C21
Victoria C8713723232627232424212017222318192931282929394432233012NA31301Victoria C87
Inez C6091 N30202124242322201820192223192031302527253436231726241828201Inez C609
Holly Road C6601 N14254047394247NANANANA2728212337292533343740312430282431281Holly Road C660
Violet C6641 NNANANANANA26292625242329292223292826373141432920NANANA28301Violet C664
Ingleside C6851 N11121418181716221619172226171828232124242933241925282125221Ingleside C685
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143123182422232320181722181919181627202429332633312025212023291Mission C43/AP143
Brownsville C80/AGP180120171925262522201620182221191818212323272326231822212325271Brownsville C80/AGP180
Harlingen Teege C1023123181926242622221921182321182127252826282425372325202228311Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2016POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244132192827292424232621222224222527233125272521262224292125281Laredo 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 - 0.054
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.