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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 24047NVNV665146434149NV5364795636333144182Ft. Worth Northwest C13/AH302
Keller C17236425063685248434343574755805840353147172Keller C17
Frisco C31/C680133425559676261555449554647746646414857191Frisco C31/C680
Midlothian OFW C52/A1371344751524343424334346352NV535035252643171Midlothian OFW C52/A137
Denton Airport South C56/A163/X157136435359836257464741544647827146424358191Denton Airport South C56/A163/X157
Arlington Municipal Airport C61131465160514441383338604864604931272341131Arlington Municipal Airport C61
Dallas North No.2 C63/C679130425355565151454343544449675542323350161Dallas North No.2 C63/C679
Rockwall Heath C69132425355484643454249554648595643263545161Rockwall Heath C69
Grapevine Fairway C70/A301/X182136435463765453484545584752826243333650171Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071131455254424539414033554546485337172943151Kaufman C71/A304/X071
Granbury C73/C681144555867524643413439645474624939323140171Granbury C73/C681
Eagle Mountain Lake C75 132414758694641373738554650785636303035121Eagle Mountain Lake C75
Parker County C7613847516761524239383757536572554030273791Parker County C76
Cleburne Airport C77/C682146596060524846453537716076615040282741191Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 333455559584848434047594954695036NVNANANA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402132445155464442423638615058604836252541141Dallas Executive Airport C402
Greenville C1006/A1981NV435253394338414044524343545442243743161Greenville C1006/A198
Pilot Point C1032137445459726461525540544747797350455358201Pilot Point C1032
Italy C1044/A323134455046454344443635665649524340232942151Italy C1044/A323
Corsicana Airport C1051131465246454639393235404746NV5039253138171Corsicana Airport C1051
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644230353742533726302830534951525030272334162Longview C19/A127/C644
Tyler Airport Relocated C82135454046383428323634474445575333233239151Tyler Airport Relocated C82
Karnack C85/AFHP303131333437394736374534414043475036233244151Karnack C85/AFHP303
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151249535553666455615045434148425255646948302El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159145464743625652NVNANANV3438374749625843241Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 145445048676357604742NVNANANANV53666348311Chamizal C41/AH126
Socorro Hueco C49/F312149505151625657734643423640415761575849291Socorro Hueco C49/F312
Skyline Park C72151515255707059584943433945485454655751371Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N42495157595448444246373652554943444546353BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414144444243615554554234352833394748514944261Ivanhoe C414
Cd Juarez Delphi C6631 NNV3841375145425541NVNANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Waco
Waco Mazanec C1037140465049534745463737456151514442204241151Waco Mazanec C1037
Temple Georgia C104514450534851504848433429NANV605545304139181Temple Georgia C1045
Killeen Skylark Field C1047146495350515253493933326158615447313640201Killeen Skylark Field C1047
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 235313543452924222326374749605329222118142Beaumont-Downtown C2/A112/C2002
West Orange C9/A141229273444393022222727364148545630212421142West Orange C9/A141
Port Arthur West C28/A128/A228134364244392921202223395156564828212220181Port Arthur West C28/A128/A228
Hamshire C64/C654135304440362924222325444957634726222320151Hamshire C64/C654
SETRPC Port Arthur C6281 N3031403533261817191929424245392318NANANA1SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654136424737363120202322305044473524232420241SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N30NVNANV473725NV2625303934425627222120131SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643135353943392722212225405154NANANANANANV201SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 134333646412922212325394750714929212219171Nederland High School C1035
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224345474149484038333330605257463930NANANA2Austin Northwest C3/A322
Audubon C38143464945595546453635286361615043343634191Audubon C38
Fayette County C6012 N48445151464833284186NVNV683631262825182Fayette County C601
Dripping Springs School C6141 N42475048515245433633296060634841323533191Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N40364134384032302323285047523632252627151CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N43454844506050483835285958555345343735201CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N41454844444739383331315955574139303029181Gorzycki Middle School C1603
Lockhart C16041 N54424430239NVNV044NVNANV594248NVNANV181Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N41454743434134312426345352543632252727141CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N272629252728242319201936NV353227232323121CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G31624631344639432627NVNANANANANANV26202317172Houston East C1/G316
Houston Aldine C8/AF108/X150 242283537434428312530324240544923182418152Houston Aldine C8/AF108/X150
Channelview C15/AH115 347323237323725262331435046524326202118183Channelview C15/AH115
Northwest Harris Co. C26/A110/X154240313744525031322424325049714629222827162Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239147323441383521232125375258463622192117171Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45147334039353420201921345750483621192416181Seabrook Friendship Park C45
Houston Bayland Park C53/A146 144394553353922232123366468653522182316151Houston Bayland Park C53/A146
Conroe Relocated C78/A321140343737377347493332355244557335243729221Conroe Relocated C78/A321
Manvel Croix Park C84148445154343721232024327182523023182119131Manvel Croix Park C84
Clinton C403/C304/AH113 342NV34452628171817223248494729NV171211103Clinton C403/C304/AH113
Houston North Wayside C4051NV3228403541NV252227445248584626182015121Houston North Wayside C405
Houston Monroe C406143323744303320211722325663493021172016141Houston Monroe C406
Lang C408243354050444629312027425961694425212521172Lang C408
Houston Croquet C409246404753353422242223366674583324192318162Houston Croquet C409
Houston Westhollow C410143344256394325251622345667763424192319161Houston Westhollow C410
Houston Texas Avenue C411142324048333721232125385754593523182117141Houston Texas Avenue C411
Park Place C41614727394634392325192538576653NANANANV18161Park Place C416
Sheldon C5511 N34242629273221211921293534443617131412111Sheldon C551
Baytown Wetlands Center C5521 N45303337313221222223384951443625191915141Baytown Wetlands Center C552
Crosby Library C5531 N41293037394833333032414741575429252823161Crosby Library C553
West Houston C5541 N3326334433332020162027404761291916171691West Houston C554
La Porte Sylvan Beach C5561 N5436384238372425242639565451392623NVNANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N37293236415134392830334442626029232820151Mercer Arboretum C557
Tom Bass C5581 N3934394326301618151926516341221410141191Tom Bass C558
Katy Park C5591 N40313959414124242020325052813425202420171Katy Park C559
Atascocita C5601 N38283135404833333034394436556029212621161Atascocita C560
Meyer Park C5611 N37303540465232342526345149695330242924181Meyer Park C561
Bunker Hill Village C5621 N40343954354224261820355462723723172118161Bunker Hill Village C562
Huffman Wolf Road C5631 NNA262832314835333236354233525629212621141Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N48343546404126262229475355554526212318191HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N51343743384629323340525758595230252724181Wallisville Road C617
Danciger C618 1 N35404956293418201718214678562022181518161Danciger C618
Mustang Bayou C619 1 N41425148322721212220276356532923222217211Mustang Bayou C619
Texas City 34th St. C620 1 N42434046382817201821286449503122192018221Texas City 34th St. C620
UH Moody Tower C6951 N45414958434627292730446869664324242822191UH Moody Tower C695
U of H-Sugarland C6961 N42334357313820211719295973602721172017161U of H-Sugarland C696
UH Coastal Center C6971 N45434145352720201920286350502821192117211UH Coastal Center C697
UH WG Jones Forest C6981 N40343739456541453130335445567032253327131UH WG Jones Forest C698
UH West Liberty C6991 N4132343833534240404242NVNV636835293526181UH West Liberty C699
Lynchburg Ferry C1015/A165 144293038323422242228394349454123192218171Lynchburg Ferry C1015/A165
Lake Jackson C1016 122424750292717181717194159552220181817181Lake Jackson C1016
Baytown Garth C1017147323440364529293038475253575029242723181Baytown Garth C1017
Galveston 99th St. C1034/A320/X183139475454412818232023397658573824222121261Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23242464754635844413537434761704542313234192San Antonio Northwest C23
Camp Bullis C581434849536063434739394350616452473337NANA1Camp Bullis C58
Calaveras Lake C59154555455574435343129373856603636262930161Calaveras Lake C59
Elm Creek Elementary C5011 N54525169544937343228334070723536262830161Elm Creek Elementary C501
Fair Oaks Ranch C5021 N38424446555948453535294353544943323435191Fair Oaks Ranch C502
Bulverde Elementary C5031 N40444648546148463835304857545044313534191Bulverde Elementary C503
New Braunfels Airport C5041 N49555552514838352830395958584037283030161New Braunfels Airport C504
City of Garden Ridge C5051 N39414545444733322927374352563633232525131City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N50485147514838352730365854623637283130181Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N54565458564435333129384657633739272928161Heritage Middle School C622
CPS Pecan Valley C6781 N5150526256483835343142NV65694442283434191CPS Pecan Valley C678
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4220515357532026231916183347262425223526212Corpus Christi West C4
Corpus Christi Tuloso C21121505155562123221816183143352523213023151Corpus Christi Tuloso C21
Victoria C871324445494725222521182134NV443125212120171Victoria C87
Inez C6091 N36434449412620211818223441372221191818161Inez C609
Coleto C6241 N14293033331713121110142331251615121718121Coleto C624
Aransas Pass C6591 N17485162452124211614143842212123213022201Aransas Pass C659
Holly Road C6601 N14474956471723191512132537181720173022161Holly Road C660
Violet C6641 N18515355621921201714152943302120172418131Violet C664
Ingleside C6851 N19474956462026221816163632222124223023191Ingleside C685
Odem C6861 N215051NANANANANANANANANANANANANANANANANA1Odem C686
Taft C6871 N23545761552328252118233444302326223427221Taft C687
Cuero C16021 N53475351503829282626335254483632252420161Cuero C1602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143126304649432425212923232831302720192722151Mission C43/AP143
Brownsville C80/AGP180119204848261926202518172420192420193122171Brownsville C80/AGP180
Harlingen Teege C1023125285050362529263325232623262821223525171Harlingen Teege C1023
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244124255056483732304124212747423331222628161Laredo 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.