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Daily Maximum Eight-Hour Ozone Averages for August 2014

The table below lists the peak daily maximum eight-hour ozone concentrations measured in August 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 SitePOCAugust 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 24047NVNV665146434149NV5364795636333144353634202Ft. Worth Northwest C13/AH302
Keller C17236425063685248434343574755805840353147343836192Keller C17
Frisco C31/C680133425559676261555449554647746646414857394146231Frisco C31/C680
Midlothian OFW C52/A1371344751524343424334346352NV535035252643323234171Midlothian OFW C52/A137
Denton Airport South C56/A163/X157136435359836257464741544647827146424358404343221Denton Airport South C56/A163/X157
Arlington Municipal Airport C61131465160514441383338604864604931272341293030151Arlington Municipal Airport C61
Dallas North No.2 C63/C679130425355565151454343544449675542323350363538201Dallas North No.2 C63/C679
Rockwall Heath C69132425355484643454249554648595643263545393137221Rockwall Heath C69
Grapevine Fairway C70/A301/X182136435463765453484545584752826243333650363740221Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071131455254424539414033554546485337172943393236181Kaufman C71/A304/X071
Granbury C73/C681144555867524643413439645474624939323140323331191Granbury C73/C681
Eagle Mountain Lake C75 132414758694641373738554650785636303035292729161Eagle Mountain Lake C75
Parker County C76138475167615242393837575365725540302737282931161Parker County C76
Cleburne Airport C77/C682146596060524846453537716076615040282741353535171Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 333455559584848434047594954695036NVNANANANANANA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402132445155464442423638615058604836252541333233181Dallas Executive Airport C402
Greenville C1006/A1981NV435253394338414044524342545442243743323235241Greenville C1006/A198
Pilot Point C1032137445459726461525540544747797350455358414449251Pilot Point C1032
Italy C1044/A323134455046454344443635665649524340232942322935161Italy C1044/A323
Corsicana Airport C1051131465246454639393235404746NV5039253138373236151Corsicana Airport C1051
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644230353742533726302830534951525030272334272929132Longview C19/A127/C644
Tyler Airport Relocated C82135454046383428323634474445575333233239313533201Tyler Airport Relocated C82
Karnack C85/AFHP303131333437394736374534414043475036233244292640151Karnack C85/AFHP303
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151249535553666455615045434148425255646948434150302El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159145464743625652NVNANANV3438374749625843334142181Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 145445048676357604742NVNANANANV53666348454041301Chamizal C41/AH126
Socorro Hueco C49/F312149505151625657734643423640415761575849464648211Socorro Hueco C49/F312
Skyline Park C72151515255707059584943433945485454655751454358231Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N42495157595448444246373652554943444546435043283BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414144444243615554554234352833394748514944394144201Ivanhoe C414
Cd Juarez Delphi C6631 NNV384137514542554132332128293740494937323336141Cd Juarez Delphi C663
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Waco
Waco Mazanec C1037140465049534745463737456151514442204241322935161Waco Mazanec C1037
Temple Georgia C104514450534851504848433429NANV605545304139333340181Temple Georgia C1045
Killeen Skylark Field C1047146495350515253493933326158615447313640383641181Killeen Skylark Field C1047
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 235313543452924222326374749605329222118231925152Beaumont-Downtown C2/A112/C2002
West Orange C9/A141229273444393022222727364148545630212421211936142West Orange C9/A141
Port Arthur West C28/A128/A228134364244392921202223395156564828212220211721121Port Arthur West C28/A128/A228
Hamshire C64/C654135304440362924222325444957634726222320232216111Hamshire C64/C654
SETRPC Port Arthur C6281 N3031403533261817191929424245392318NANANV1619201SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654136424737363120202322305044473524232420252024191SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N30NVNANV473725NV2625303934425627222120232235151SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643135353943392722212225405154NANANANANANV242026171SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 134333646412922212325394750714929212219231824131Nederland High School C1035
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224345474149484038333330605257463930NANANV2633152Austin Northwest C3/A322
Audubon C3814346494559554645363528636161504334363433293651Audubon C38
Fayette County C6012 N48445151464833284186NVNV683631262825282228152Fayette County C601
Dripping Springs School C6141 N42475048515245433633296060634841323533322934171Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N40364134384032302323285047523632252627262328111CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N43454844506050483835285958555345343735353240181CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N41454844444739383331315955574139303029282531151Gorzycki Middle School C1603
Lockhart C16041 N54424430239NVNV044NVNANV594248NVNANV302530131Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N41454743434134312426345352543632252727252328141CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N272629252728242319201936NV353227232323212023111CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G31624631344639432627NVNANANANANANV26202317212333142Houston East C1/G316
Houston Aldine C8/AF108/X150 242283537434428312530324240544923182418202134102Houston Aldine C8/AF108/X150
Channelview C15/AH115 347323237323725262331435046524326202118232330123Channelview C15/AH115
Northwest Harris Co. C26/A110/X154240313744525031322424325049714629222827282541132Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239147323441383521232125365258463622192117212027121Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45147334039353420201921345750483621192416211825111Seabrook Friendship Park C45
Houston Bayland Park C53/A146 144394553353922232123366468653522182316201826121Houston Bayland Park C53/A146
Conroe Relocated C78/A321140343737377347493332355244557335243729343763151Conroe Relocated C78/A321
Manvel Croix Park C84148445154343721232024327182523023182119201926111Manvel Croix Park C84
Clinton C403/C304/AH113 342NV34452628171817223248494729NV171211131421113Clinton C403/C304/AH113
Houston North Wayside C4051NV3228403541NV252227445248584626182015161933101Houston North Wayside C405
Houston Monroe C406143323744303320211722325663493021172016191823111Houston Monroe C406
Lang C408243354050444629312027425961694425212521212433132Lang C408
Houston Croquet C409246404753353422242223366674583324192318221927112Houston Croquet C409
Houston Westhollow C410143344256394325251622345667763424192319242030151Houston Westhollow C410
Houston Texas Avenue C411142324048333721232125385754593523182117171727131Houston Texas Avenue C411
Park Place C41614727394634392325192538576653372319NV18NVNV29121Park Place C416
Sheldon C5511 N3424262927322121192129353444361713141214132171Sheldon C551
Baytown Wetlands Center C5521 N45303337313221222223384951443625191915201727121Baytown Wetlands Center C552
Crosby Library C5531 N41293037394833333032414741575429252823232843181Crosby Library C553
West Houston C5541 N332633443333202016202740476129191617161291641West Houston C554
La Porte Sylvan Beach C5561 N5436384238372425242639565451392623NVNANANANANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N37293236415134392830334442626029232820262948121Mercer Arboretum C557
Tom Bass C5581 N3934394326301618151926516341221410141111121751Tom Bass C558
Katy Park C5591 N40313959414124242020325052813425202420242128121Katy Park C559
Atascocita C5601 N38283135404833333034394436556029212621252541111Atascocita C560
Meyer Park C5611 N37303540465232342526345149695330242924252846151Meyer Park C561
Bunker Hill Village C5621 N40343954354224261820355462723723172118202228111Bunker Hill Village C562
Huffman Wolf Road C5631 NNA26283231483533323635423352562921262123193491Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N48343546404126262229475355554526212318232231141HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N51343743384629323340525758595230252724272541161Wallisville Road C617
Danciger C618 1 N35404956293418201718214678562022181518221821101Danciger C618
Mustang Bayou C619 1 N41425148322721212220276356532923222217221922121Mustang Bayou C619
Texas City 34th St. C620 1 N42434046382817201821286449503122192018231922171Texas City 34th St. C620
UH Moody Tower C6951 N45414958434627292730446869664324242822242333201UH Moody Tower C695
U of H-Sugarland C6961 N42334357313820211719295973602721172017211822131U of H-Sugarland C696
UH Coastal Center C6971 N45434145352720201920286350502821192117231821141UH Coastal Center C697
UH WG Jones Forest C6981 N40343739456541453130335445567032253327323258121UH WG Jones Forest C698
UH West Liberty C6991 N4132343833534240404242NVNV636835293526293351241UH West Liberty C699
Lynchburg Ferry C1015/A165 144293038323422242228394349454123192218202127171Lynchburg Ferry C1015/A165
Lake Jackson C1016 122424750292717181717194159552220181817211719101Lake Jackson C1016
Baytown Garth C1017147323440364528293038475253575029242723262439151Baytown Garth C1017
Galveston 99th St. C1034/A320/X183139475454412818232023397658573824222121261922201Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23242464754635844413537434761704542313234302733172San Antonio Northwest C23
Camp Bullis C581434849536063434739394350616452473337NANANV39181Camp Bullis C58
Calaveras Lake C59154555455574435343129373856603636262930282530141Calaveras Lake C59
Elm Creek Elementary C5011 N54525169544937343228334070723536262830282429141Elm Creek Elementary C501
Fair Oaks Ranch C5021 N38424446555948453535294353544943323435332936161Fair Oaks Ranch C502
Bulverde Elementary C5031 N40444648546148463835304857545044313534312936161Bulverde Elementary C503
New Braunfels Airport C5041 N49555552514838352830395958584037283030302631141New Braunfels Airport C504
City of Garden Ridge C5051 N39414545444733322927374352563633232525222125111City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N50485147514838352730365854623637283130312632141Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N54565458564435333129384657633739272928272431171Heritage Middle School C622
CPS Pecan Valley C6781 N5150526256483835343142NV65694442283434322732181CPS Pecan Valley C678
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4220515357532026231916183347262425223526231923162Corpus Christi West C4
Corpus Christi Tuloso C21121505155562123221816183143352523213023NV1823131Corpus Christi Tuloso C21
Victoria C871324445494725222521182134NV443125212120231924121Victoria C87
Inez C6091 N36434449412620211818223441372221191818211820101Inez C609
Coleto C6241 N1429303333171312111014233125161512171819161981Coleto C624
Aransas Pass C6591 N17485162452124211614143842212123213022211618131Aransas Pass C659
Holly Road C6601 N14474956471723191512132537181720173022181516101Holly Road C660
Violet C6641 N1851535562192120171415294330212017241818151881Violet C664
Ingleside C6851 N19474956462026221816163632222124223023211819151Ingleside C685
Odem C6861 N215051NANANANANANANANANANANANANANANANANANANANA1Odem C686
Taft C6871 N23545761552328252118233444302326223427242022171Taft C687
Cuero C16021 N53475351503829282626335254483632252420252227141Cuero C1602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143126304649432425212923232831302720192722201820131Mission C43/AP143
Brownsville C80/AGP180119204848261926202518172420192420193122202020171Brownsville C80/AGP180
Harlingen Teege C1023125285050362529263325232623262821223525212023171Harlingen Teege C1023
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244124255056483732304124212747423331222628271923101Laredo 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.