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Peak Daily One-Hour Ozone Averages for October 2014

The table below lists the peak daily one-hour ozone concentrations measured in October 2014 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 SitePOCOctober 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 24344495052514841413320314344676087674870702Ft. Worth Northwest C13/AH302
Keller C1724241454952505039403320313837655377534866692Keller C17
Frisco C31/C68014840495359576244424321334540565974505270641Frisco C31/C680
Midlothian OFW C52/A1371353549445049523635351828NANA535555584559591Midlothian OFW C52/A137
Denton Airport South C56/A163/X15715146465660606448434019373841565972475569801Denton Airport South C56/A163/X157
Arlington Municipal Airport C6113438464451444639333317294240705176654460631Arlington Municipal Airport C61
Rockwall Heath C6914639525054555245434219354540626777544969631Rockwall Heath C69
Grapevine Fairway C70/A301/X18214638495057515443383919313841624985555772711Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07114638524652524746423721294341556258544852591Kaufman C71/A304/X071
Granbury C73/C68114850505049515247383219284543535173694957591Granbury C73/C681
Eagle Mountain Lake C75 14142434950494840393118303539544676504563651Eagle Mountain Lake C75
Parker County C7614553515450486043372914264447605181574356651Parker County C76
Cleburne Airport C77/C68214046535054535241423616294543595978724963621Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3NANA515056505241363520323740575590615465643Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40213032484449465440313414274134595159513954521Dallas Executive Airport C402
Greenville C1006/A19814433545052545041384017302740476463454657561Greenville C1006/A198
Pilot Point C103215746495464657354454622374641536870474869681Pilot Point C1032
Italy C1044/A32313436524849505238344118254242666059534652601Italy C1044/A323
Corsicana Airport C105114040515152544844403316164342656354544152591Corsicana Airport C1051
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64422937435754543435443029224241486248434570592Longview C19/A127/C644
Tyler Airport Relocated C8212935454951514634383228224441546857485455641Tyler Airport Relocated C82
Karnack C85/AFHP30313231394662604240453427264341NA6858393843441Karnack C85/AFHP303
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151249555675504247513141615251506242445653NA442El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914253537746384554303649454445603842564635411Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 15156538249444853334154524946604442534637441Chamizal C41/AH126
Socorro Hueco C49/F31214656536949534972324549505149585663614938411Socorro Hueco C49/F312
Skyline Park C7215352536349454959384157524753664843584538451Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N3753544949504748484038474747454644514737383BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C41414445456941424453314044474240433940534228331Ivanhoe C414
Cd Juarez Delphi C6631 N32NANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Waco
Waco Mazanec C103713939585153575439354019224640506759545060611Waco Mazanec C1037
Temple Georgia C104514347614856565939354322244842537764514865611Temple Georgia C1045
Killeen Skylark Field C104715941565363577048464121284745546974535165641Killeen Skylark Field C1047
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 22617443454434044332329294040516947575557572Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412262046365544483831253127363748NA38514955572West Orange C9/A141
Port Arthur West C28/A128/A22812715473652453838332229243837555844656473651Port Arthur West C28/A128/A228
Hamshire C64/C65412517374253433833352126253739636047727076591Hamshire C64/C654
SETRPC Port Arthur C6281 N2017373143383230261825212932494738604763591SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654127NA483648412835312232263839675445514869561SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N2019483256425145332630303939507949484451551SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643132NANANA41454139332429294043536548646968601SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12815453353NA3740332329263940516747606063581Nederland High School C1035
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224440565453495238343122213943556657464958542Austin Northwest C3/A322
Audubon C3815243545857515542393423203942537168534962581Audubon C38
Fayette County C6012 N4137525253533833352933323942566148494958612Fayette County C601
Dripping Springs School C6141 N5339495355475538363319253740516964515164601Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N3725444241413930282420203133465541343844451CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N5343555458515943403721244342527169484758541CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N1NA54676074NANANANANANANANA445245404149441Gorzycki Middle School C1603
Lockhart C16041 N4428505150484537363122403843676255445358561Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N4232495050433833322918323538656147404753511CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N1818282424242218161612132423313831293035361CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G31623520384049424237432429352737595948566958592Houston East C1/G316
Houston Aldine C8/AF108/X150 240353742519394145213035343854604849474142Houston Aldine C8/AF108/X150
Channelview C15/AH115 32818393449383832342228363043625648506054543Channelview C15/AH115
Northwest Harris Co. C26/A110/X15423839445053514445522635383841546051535056532Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP23913117394146463731382029312840615446545565641Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4512714414050483533362027322946685848485864751Seabrook Friendship Park C45
Houston Bayland Park C53/A146 13321495450473530422034313442605643679067741Houston Bayland Park C53/A146
Conroe Relocated C78/A32116039454478507061683234334246606965454552501Conroe Relocated C78/A321
Manvel Croix Park C8413415566048463726402036283344575747715782721Manvel Croix Park C84
Clinton C403/C304/AH113 32314393745413326301928292634453830536559623Clinton C403/C304/AH113
Houston North Wayside C40513326373948464034432134382738525342505553491Houston North Wayside C405
Houston Monroe C40612615384143423325332028262837504637534868571Houston Monroe C406
Lang C40823633425050444034472337343239535847575360572Lang C408
Houston Croquet C40923318525150453829432242303142575644777574732Houston Croquet C409
Houston Westhollow C41013428425547473831402339333338545341647068651Houston Westhollow C410
Houston Texas Avenue C41112921394346413730382037322734524939567259581Houston Texas Avenue C411
Park Place C41613317414448454131422235312938595342667165681Park Place C416
Sheldon C5511 N3520343447364636372229373339555546444850481Sheldon C551
Baytown Wetlands Center C5521 N2612323645393428311424282738575045515555571Baytown Wetlands Center C552
Crosby Library C5531 N4020323350415435442229423340565951434048461Crosby Library C553
West Houston C5541 N16192034303620192313231620162624NANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N2614343945413530301824262339584329NANANANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N4325364254455148482530453136496050433950441Mercer Arboretum C557
Tom Bass C5581 N2510394438393021321324182433444332574671551Tom Bass C558
Katy Park C5591 N3032395445503432392236323439505342606NA591Katy Park C559
Atascocita C5601 N4223313351425143472326422933465646414042431Atascocita C560
Meyer Park C5611 N4235404452474744542632413639506049484853491Meyer Park C561
Bunker Hill Village C5621 N3321425045433430422135312937495241566065581Bunker Hill Village C562
Huffman Wolf Road C5631 N3315222240304827402124392634475649363436371Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N3520404149534439472434352942636252607064681HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N3820434059505835442436394250726757626567581Wallisville Road C617
Danciger C618 1 N3115536547472822341932253442535142485462671Danciger C618
Mustang Bayou C619 1 N2916604948473632362240243343515346505264561Mustang Bayou C619
Texas City 34th St. C620 1 N2211413243NA30323181291332333843515773601Texas City 34th St. C620
UH Moody Tower C6951 N3920504854534836492638353746666449679575751UH Moody Tower C695
U of H-Sugarland C6961 N3217425843463429332034303137505140757673711U of H-Sugarland C696
UH Coastal Center C6971 N2815644150453537342132232746555443555067551UH Coastal Center C697
UH WG Jones Forest C6981 N5226444368496052623234304142586758464553501UH WG Jones Forest C698
UH West Liberty C6991 N4728393857476842522834394043637865494348501UH West Liberty C699
Lynchburg Ferry C1015/A165 12719353848413532342128333539595545485363581Lynchburg Ferry C1015/A165
Lake Jackson C1016 13217694949483232382229223443625143455463621Lake Jackson C1016
Baytown Garth C101713618383754465335412234363844636153575961591Baytown Garth C1017
Galveston 99th St. C1034/A320/X183131NA475157534443452537283953635654515763571Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2325143486454564837343321414141505861495362682San Antonio Northwest C23
Camp Bullis C5816147557159655942393720324346586273515565681Camp Bullis C58
Calaveras Lake C5914333586551444032322923374245596248435254621Calaveras Lake C59
Elm Creek Elementary C5011 N4337546346393832313021423841555550434955601Elm Creek Elementary C501
Fair Oaks Ranch C5021 N5342456254645241363518324042496171465356591Fair Oaks Ranch C502
Bulverde Elementary C5031 N5540485756555838383317313942556571445258581Bulverde Elementary C503
New Braunfels Airport C5041 N4432525651484136363019413942666453415254561New Braunfels Airport C504
City of Garden Ridge C5051 N5340496255474934343121374144686854445356581City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N4537555754514335383019323840606255435459601Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N4535546651493831332822354346596651445456621Heritage Middle School C622
CPS Pecan Valley C6781 N5132476449404332342920433740556254404952571CPS Pecan Valley C678
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C423321566253392629312628285356575147395554672Corpus Christi West C4
Corpus Christi Tuloso C2113320556251312524NA2228324951544943344643621Corpus Christi Tuloso C21
Victoria C8713922566252393028302638354247595546435069711Victoria C87
Inez C6091 N3018465045362521272134353838424438434770631Inez C609
Coleto C6241 N3719435445302921252234244039515141364860651Coleto C624
Aransas Pass C6591 N2314515551392224272224235150564744365454681Aransas Pass C659
Holly Road C6601 N2515495746342024252123204443464340314851631Holly Road C660
Violet C6641 N3018535947262121272025254448494540294547611Violet C664
Ingleside C6851 N2516465248352224272327254346504642335047581Ingleside C685
Odem C6861 N3321525348332726302429314851574943304747581Odem C686
Taft C6871 N3822606055413328312731304854635247365152651Taft C687
Cuero C16021 N4528545453484333343033334449726352445863721Cuero C1602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP14312222454540293222211828233135513936303743361Mission C43/AP143
Brownsville C80/AGP18012324616246272226242121214043584335264040491Brownsville C80/AGP180
Harlingen Teege C10231NANA494949344129322428264448535239314546471Harlingen Teege C1023
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P24413326535241343229302628334045474642273741451Laredo 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 - 0.059
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.