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Daily Maximum Eight-Hour Ozone Averages for July 2014

The table below lists the peak daily maximum eight-hour ozone concentrations measured in July 2014 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 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 236625055NVNANV364437313840415763213649545179NA2Ft. Worth Northwest C13/AH302
Keller C17238574455494737404639323843395263223246565270NA2Keller C17
Frisco C31/C680148504559555349526248414755455266273339665856NA1Frisco C31/C680
Midlothian OFW C52/A137131454846444035353533333339375053223743444651NA1Midlothian OFW C52/A137
Denton Airport South C56/A163/X157145504066545242486248404448405278253243686667NA1Denton Airport South C56/A163/X157
Arlington Municipal Airport C61131515148433832313431293235345254183242464460NA1Arlington Municipal Airport C61
Dallas North No.2 C63/C679139474552494940435838334049464963223339605357NA1Dallas North No.2 C63/C679
Rockwall Heath C691NANV4353474439394835334048504957283239534853NA1Rockwall Heath C69
Grapevine Fairway C70/A301/X182141554759514838435740354048415166233445646070NA1Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711344744454541333338343541434347542631374946NVNA1Kaufman C71/A304/X071
Granbury C73/C681134395344493833323236313235356652283853444661NA1Granbury C73/C681
Eagle Mountain Lake C75 132503753453833324232273435324964203046484965NA1Eagle Mountain Lake C75
Parker County C76129334142443432303533283235305654263052424371NA1Parker County C76
Cleburne Airport C77/C682135505450503736333639293437356454223848444653NA1Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 336494851484537374936293843435259233540564962NA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402131454845443936343030273538NVNV53213240484256NA1Dallas Executive Airport C402
Greenville C1006/A198137434249424434374033333945524650232731454350NA1Greenville C1006/A198
Pilot Point C1032149494458575652536755465053405167283337656060NA1Pilot Point C1032
Italy C1044/A32313135464846353833363128353939465523353841NV48NA1Italy C1044/A323
Corsicana Airport C1051131334845474031313533354450424952212934464744NA1Corsicana Airport C1051
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644220414249664727244125314641434264242532475760NA2Longview C19/A127/C644
Tyler Airport Relocated C82123314759404534343628293236NANV49263035485059NA1Tyler Airport Relocated C82
Karnack C85/AFHP3031353638364957384249424943425540522724312935NVNA1Karnack C85/AFHP303
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151242484644504360555051424244467549495548485372NA2El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159139433934423649514241373537416244465743455459NA1Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 139413838474153484444353439457149506049505566NA1Chamizal C41/AH126
Socorro Hueco C49/F312142444239423750494543383638435753585750526858NA1Socorro Hueco C49/F312
Skyline Park C721424843415140575148474040384762535173NVNANV62NA1Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N4134353136393433344035393436384352NVNANV4845NA3BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141404339384435413736NV313031375545505744455453NA1Ivanhoe C414
Cd Juarez Delphi C6631 N303331273431393733322728293758384046374047NVNA1Cd Juarez Delphi C663
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Waco
Waco Mazanec C10371303441525034393738323029414847561938444444NVNA1Waco Mazanec C1037
Temple Georgia C1045134393943553540414236282939483850274149423845NA1Temple Georgia C1045
Killeen Skylark Field C1047141384143544040434442303039483651313746453947NA1Killeen Skylark Field C1047
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 221393550675531192525295050393059262328433235NA2Beaumont-Downtown C2/A112/C2002
West Orange C9/A141227363848555637223025284647472754222526392938NA2West Orange C9/A141
Port Arthur West C28/A128/A228119284247625129182225204140302947292138452331NA1Port Arthur West C28/A128/A228
Hamshire C64/C6541223032NVNANANANV2524193445363253272234392831NA1Hamshire C64/C654
SETRPC Port Arthur C6281 N17303543554728151922203642292438272033372430NA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C16541182245425754NV1319NVNANANV354046322445332236NA1SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N36394035636839213825404444502452232320352836NA1SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643121313744625431192426254647NANV49262337482634NA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 123364055655833202626285152363255292335432634NA1Nederland High School C1035
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Austin
Austin Northwest C3/A3222313545345133333333NV262733474243243246443741NA2Austin Northwest C3/A322
Audubon C38135384537523434363538293135463347222445444341NA1Audubon C38
Fayette County C6012 N29283637473029293135263137433637263546413136NA2Fayette County C601
Dripping Springs School C6141 N33333635473433353538283138493643282853454240NA1Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N24212926392723272729212329343233232636352928NA1CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N36374139513836394040313240503652293344453643NA1CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N34354335523533363640303037504844273053454141NA1Gorzycki Middle School C1603
Lockhart C16041 N25252729432826272931232431363632233147413433NA1Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N26272830452926282932232529364031232345383429NA1CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N18212320271818191920161519262123152124231921NA1CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162284346515350NV213233305848453851NANV38413654NA2Houston East C1/G316
Houston Aldine C8/AF108/X150 236513942555144253834376653483858123233374853NA2Houston Aldine C8/AF108/X150
Channelview C15/AH115 326453844455029162530264555463760112328323254NA3Channelview C15/AH115
Northwest Harris Co. C26/A110/X154223262929423726213027323332322637112128272429NA2Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239121344246464124212525244436344041142341442640NA1Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4511831374847NV26192225244039314447162131342334NA1Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1NANV5659413624212225223837394343132752572946NA1Houston Bayland Park C53/A146
Conroe Relocated C78/A321148252936535945345542655043504459272728335843NA1Conroe Relocated C78/A321
Manvel Croix Park C84121234953413622192728213233324339162353402331NA1Manvel Croix Park C84
Clinton C403/C304/AH113 3NV354451404121142222194837312830102141422441NA3Clinton C403/C304/AH113
Houston North Wayside C40512944404749473418323032615145NANV102430353653NA1Houston North Wayside C405
Houston Monroe C40612128NV44383622142425183932313235132144502235NA1Houston Monroe C406
Lang C408232474947504133203231305144393948122746493650NA2Lang C408
Houston Croquet C409222345465423525212326213535364041142657472644NA2Houston Croquet C409
Houston Westhollow C410125365556443826212825263539364239162853492640NA1Houston Westhollow C410
Houston Texas Avenue C411123404751NV392717292723493937374012253747NV49NA1Houston Texas Avenue C411
Park Place C4161NANV50NANANANV212928225139393637142452612844NA1Park Place C416
Sheldon C5511 N37544349NVNANANV11NVNANANANANANANANANANANV36NA1Sheldon C551
Baytown Wetlands Center C5521 N21433642434727202526243544343644162028332647NA1Baytown Wetlands Center C552
Crosby Library C5531 N37483140475237254038324454453558162823304444NA1Crosby Library C553
West Houston C5541 N23283843373120152321223132273333102137372233NA1West Houston C554
La Porte Sylvan Beach C5561 NNV384149495229232729284143365053182432363144NA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N41443636484843314538476150443160142428295242NA1Mercer Arboretum C557
Tom Bass C5581 N17224347353118162423183128283333132146411931NA1Tom Bass C558
Katy Park C5591 N22283950453525192326303335333135162541392438NA1Katy Park C559
Atascocita C5601 N35473138454940274036455050473153142425304643NA1Atascocita C560
Meyer Park C5611 N38383836504034253832396240394255132835354241NA1Meyer Park C561
Bunker Hill Village C5621 N24364948373328172526233536353737122544483040NA1Bunker Hill Village C562
Huffman Wolf Road C5631 N37362633454839NVNANANANANANANANANANANANANA33NA1Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N2544475147483219323329544944NV54112239393250NA1HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N34534453535938253737304967544261202734394758NA1Wallisville Road C617
Danciger C618 1 N17212649432421171828182527272828161840201724NA1Danciger C618
Mustang Bayou C619 1 N18214155423723171827192734313533172445371923NA1Mustang Bayou C619
Texas City 34th St. C620 1 N19254254524522161925233936295147152846372027NA1Texas City 34th St. C620
UH Moody Tower C6951 N284560NVNVNV312434322659444346NV16NVNV613453NA1UH Moody Tower C695
U of H-Sugarland C6961 N182748644033221820NVNV27313439NV14NVNV371935NA1U of H-Sugarland C696
UH Coastal Center C6971 N172048524037211618261938332739NV17NVNV361923NA1UH Coastal Center C697
UH WG Jones Forest C6981 N4733NV3654544333533963584647467621NVNV365838NA1UH WG Jones Forest C698
UH West Liberty C6991 N5046314057584538523836NV485636NV19NVNV3256NVNA1UH West Liberty C699
Lynchburg Ferry C1015/A165 121534043424725162426244145403550142028383057NA1Lynchburg Ferry C1015/A165
Lake Jackson C1016 118192855472819161725192528232724162244231717NA1Lake Jackson C1016
Baytown Garth C1017135514351525434233534284561513958202632374453NA1Baytown Garth C1017
Galveston 99th St. C1034/A320/X183119196362575628192028234035274259202658401925NA1Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23232364245543431323238283032464139332764464745NA2San Antonio Northwest C23
Camp Bullis C58136424441603835373943313637553341342561504749NA1Camp Bullis C58
Calaveras Lake C59127303340492926282935262730374030273154393331NA1Calaveras Lake C59
Elm Creek Elementary C5011 N28323038473029303035282629384234313152393334NA1Elm Creek Elementary C501
Fair Oaks Ranch C5021 N34414238553433353640293535472740382257474646NA1Fair Oaks Ranch C502
Bulverde Elementary C5031 N33393634483434343637263036473537352152443939NA1Bulverde Elementary C503
New Braunfels Airport C5041 N28313132472827303134252830373332242850393732NA1New Braunfels Airport C504
City of Garden Ridge C5051 N22222426372422242427202226353426221843312927NA1City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N29323335503129303236263033363733272851403733NA1Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N3332414556332931323829313442NV32283153423833NA1Heritage Middle School C622
CPS Pecan Valley C6781 N2629303646NV26272933252630404132292652403431NA1CPS Pecan Valley C678
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4220NV224336211418172818151516201718253220NVNVNA2Corpus Christi West C4
Corpus Christi Tuloso C21122242441392316191827201919192219191637241820NA1Corpus Christi Tuloso C21
Victoria C871NV222936452218181827161728272924203845282427NA1Victoria C87
Inez C6091 N17182632362016171728151721212523182938212019NA1Inez C609
Coleto C6241 N121318233215101312199913141713122124151216NA1Coleto C624
Aransas Pass C6591 N22192349402112181629181714131616182933181815NA1Aransas Pass C659
Holly Road C6601 N242424NVNANANANANA23141211101314152229181513NA1Holly Road C660
Violet C6641 N20232336382113171625181516162017171938231818NA1Violet C664
Ingleside C6851 N22212345412415191729191817151919202733211918NA1Ingleside C685
Odem C6861 N22293040382216191827191718182120192337242118NA1Odem C686
Taft C6871 N25242845412617202033212019182321222540252321NA1Taft C687
Cuero C16021 N22272936462717242534232631333428233841302631NA1Cuero C1602
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143124292526282018192222171818202620194129211718NA1Mission C43/AP143
Brownsville C80/AGP180127292133272116202622171313152016182219172018NA1Brownsville C80/AGP180
Harlingen Teege C10231NV312234292422232823211619242421223030262724NA1Harlingen Teege C1023
AreaMonitoring SitePOCJuly 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244127292527312426222624211919283331283536392727NA1Laredo 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 - 0.059
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.