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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 2434449505251484141332031434467608767487070612Ft. Worth Northwest C13/AH302
Keller C172424145495250503940332031383765537753486669542Keller C17
Frisco C31/C6801484049535957624442432133454056597450527064561Frisco C31/C680
Midlothian OFW C52/A1371353549445049523635351828NANA53555558455959521Midlothian OFW C52/A137
Denton Airport South C56/A163/X1571514646566060644843401937384156597247556980681Denton Airport South C56/A163/X157
Arlington Municipal Airport C611343846445144463933331729424070517665446063541Arlington Municipal Airport C61
Rockwall Heath C691463952505455524543421935454062677754496963591Rockwall Heath C69
Grapevine Fairway C70/A301/X1821463849505751544338391931384162498555577271561Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711463852465252474642372129434155625854485259571Kaufman C71/A304/X071
Granbury C73/C6811485050504951524738321928454353517369495759541Granbury C73/C681
Eagle Mountain Lake C75 1414243495049484039311830353954467650456365591Eagle Mountain Lake C75
Parker County C761455351545048604337291426444760518157435665481Parker County C76
Cleburne Airport C77/C6821404653505453524142361629454359597872496362571Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3NANA51505650524136352032374057559061546564513Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C4021303248444946544031341427413459515951395452421Dallas Executive Airport C402
Greenville C1006/A1981443354505254504138401730274047646345465756511Greenville C1006/A198
Pilot Point C10321574649546465735445462237464153687047486968571Pilot Point C1032
Italy C1044/A3231343652484950523834411825424266605953465260501Italy C1044/A323
Corsicana Airport C10511404051515254484440331616434265635454415259511Corsicana Airport C1051
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C6442293743575454343544302922424148624843457059592Longview C19/A127/C644
Tyler Airport Relocated C821293545495151463438322822444154685748545564611Tyler Airport Relocated C82
Karnack C85/AFHP30313231394662604240453427264341NA685839384344NA1Karnack C85/AFHP303
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X1512495556755042475131416152515062424456533844492El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X1591425353774638455430364945444560384256463541441Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 1515653824944485333415452494660444253463744461Chamizal C41/AH126
Socorro Hueco C49/F3121465653694953497232454950514958566361493841451Socorro Hueco C49/F312
Skyline Park C721535253634945495938415752475366484358453845511Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N375354494950474848403847474745464451473738403BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141444545694142445331404447424043394053422833411Ivanhoe C414
Cd Juarez Delphi C6631 N32NANANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Waco
Waco Mazanec C10371393958515357543935401922464050675954506061501Waco Mazanec C1037
Temple Georgia C10451434761485656593935432224484253776451486561531Temple Georgia C1045
Killeen Skylark Field C10471594156536357704846412128474554697453516564571Killeen Skylark Field C1047
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
12345678910111213141516171819202122
Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 2261744345443404433232929404051694757555757552Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412262046365544483831253127363748NA3851495557552West Orange C9/A141
Port Arthur West C28/A128/A2281271547365245383833222924383755584465647365681Port Arthur West C28/A128/A228
Hamshire C64/C6541251737425343383335212625373963604772707659691Hamshire C64/C654
SETRPC Port Arthur C6281 N201737314338323026182521293249473860476359551SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654127NA48364841283531223226383967544551486956531SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N201948325642514533263030393950794948445155471SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643132NANANA4145413933242929404353654864696860691SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12815453353NA374033232926394051674760606358651Nederland High School C1035
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Austin
Austin Northwest C3/A3222444056545349523834312221394355665746495854532Austin Northwest C3/A322
Audubon C381524354585751554239342320394253716853496258571Audubon C38
Fayette County C6012 N413752525353383335293332394256614849495861542Fayette County C601
Dripping Springs School C6141 N533949535547553836331925374051696451516460541Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N372544424141393028242020313346554134384445411CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N534355545851594340372124434252716948475854531CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N1NA54676074NANANANANANANANA44524540414944441Gorzycki Middle School C1603
Lockhart C16041 N442850515048453736312240384367625544535856541Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N423249505043383332291832353865614740475351501CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N181828242424221816161213242331383129303536331CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162352038404942423743242935273759594856695859602Houston East C1/G316
Houston Aldine C8/AF108/X150 24035374251939414521303534385460484947414522Houston Aldine C8/AF108/X150
Channelview C15/AH115 3281839344938383234222836304362564850605454533Channelview C15/AH115
Northwest Harris Co. C26/A110/X1542383944505351444552263538384154605153505653522Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391311739414646373138202931284061544654556564661Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C451271441405048353336202732294668584848586475661Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1332149545047353042203431344260564367906774651Houston Bayland Park C53/A146
Conroe Relocated C78/A3211603945447850706168323433424660696545455250501Conroe Relocated C78/A321
Manvel Croix Park C841341556604846372640203628334457574771578272751Manvel Croix Park C84
Clinton C403/C304/AH113 3231439374541332630192829263445383053655962583Clinton C403/C304/AH113
Houston North Wayside C4051332637394846403443213438273852534250555349501Houston North Wayside C405
Houston Monroe C4061261538414342332533202826283750463753486857601Houston Monroe C406
Lang C4082363342505044403447233734323953584757536057552Lang C408
Houston Croquet C4092331852515045382943224230314257564477757473762Houston Croquet C409
Houston Westhollow C4101342842554747383140233933333854534164706865621Houston Westhollow C410
Houston Texas Avenue C4111292139434641373038203732273452493956725958581Houston Texas Avenue C411
Park Place C4161331741444845413142223531293859534266716568651Park Place C416
Sheldon C5511 N352034344736463637222937333955554644485048471Sheldon C551
Baytown Wetlands Center C5521 N261232364539342831142428273857504551555557601Baytown Wetlands Center C552
Crosby Library C5531 N402032335041543544222942334056595143404846471Crosby Library C553
West Houston C5541 N16192034303620192313231620162624NANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N2614343945413530301824262339584329NANANANANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N432536425445514848253045313649605043395044451Mercer Arboretum C557
Tom Bass C5581 N251039443839302132132418243344433257467155591Tom Bass C558
Katy Park C5591 N3032395445503432392236323439505342606NA59561Katy Park C559
Atascocita C5601 N422331335142514347232642293346564641404243431Atascocita C560
Meyer Park C5611 N423540445247474454263241363950604948485349501Meyer Park C561
Bunker Hill Village C5621 N332142504543343042213531293749524156606558561Bunker Hill Village C562
Huffman Wolf Road C5631 N331522224030482740212439263447564936343637391Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N352040414953443947243435294263625260706468641HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N382043405950583544243639425072675762656758671Wallisville Road C617
Danciger C618 1 N311553654747282234193225344253514248546267611Danciger C618
Mustang Bayou C619 1 N291660494847363236224024334351534650526456561Mustang Bayou C619
Texas City 34th St. C620 1 N2211413243NA3032318129133233384351577360661Texas City 34th St. C620
UH Moody Tower C6951 N392050485453483649263835374666644967957575701UH Moody Tower C695
U of H-Sugarland C6961 N321742584346342933203430313750514075767371781U of H-Sugarland C696
UH Coastal Center C6971 N281564415045353734213223274655544355506755591UH Coastal Center C697
UH WG Jones Forest C6981 N522644436849605262323430414258675846455350511UH WG Jones Forest C698
UH West Liberty C6991 N472839385747684252283439404363786549434850521UH West Liberty C699
Lynchburg Ferry C1015/A165 1271935384841353234212833353959554548536358611Lynchburg Ferry C1015/A165
Lake Jackson C1016 1321769494948323238222922344362514345546362611Lake Jackson C1016
Baytown Garth C10171361838375446533541223436384463615357596159621Baytown Garth C1017
Galveston 99th St. C1034/A320/X183131NA47515753444345253728395363565451576357581Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C232514348645456483734332141414150586149536268672San Antonio Northwest C23
Camp Bullis C581614755715965594239372032434658627351556568681Camp Bullis C58
Calaveras Lake C591433358655144403232292337424559624843525462651Calaveras Lake C59
Elm Creek Elementary C5011 N433754634639383231302142384155555043495560621Elm Creek Elementary C501
Fair Oaks Ranch C5021 N534245625464524136351832404249617146535659621Fair Oaks Ranch C502
Bulverde Elementary C5031 N554048575655583838331731394255657144525858601Bulverde Elementary C503
New Braunfels Airport C5041 N443252565148413636301941394266645341525456571New Braunfels Airport C504
City of Garden Ridge C5051 N534049625547493434312137414468685444535658601City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N453755575451433538301932384060625543545960591Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N453554665149383133282235434659665144545662651Heritage Middle School C622
CPS Pecan Valley C6781 N513247644940433234292043374055625440495257591CPS Pecan Valley C678
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
12345678910111213141516171819202122
Corpus Christi-Victoria
Corpus Christi West C42332156625339262931262828535657514739555467652Corpus Christi West C4
Corpus Christi Tuloso C2113320556251312524NA222832495154494334464362611Corpus Christi Tuloso C21
Victoria C871392256625239302830263835424759554643506971601Victoria C87
Inez C6091 N301846504536252127213435383842443843477063621Inez C609
Coleto C6241 N371943544530292125223424403951514136486065561Coleto C624
Aransas Pass C6591 N231451555139222427222423515056474436545468631Aransas Pass C659
Holly Road C6601 N251549574634202425212320444346434031485163601Holly Road C660
Violet C6641 N301853594726212127202525444849454029454761611Violet C664
Ingleside C6851 N251646524835222427232725434650464233504758591Ingleside C685
Odem C6861 N332152534833272630242931485157494330474758581Odem C686
Taft C6871 N382260605541332831273130485463524736515265651Taft C687
Cuero C16021 N452854545348433334303333444972635244586372761Cuero C1602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431222245454029322221182823313551393630374336441Mission C43/AP143
Brownsville C80/AGP1801232461624627222624212121404358433526404051481Brownsville C80/AGP180
Harlingen Teege C10231NANA49494934412932242826444853523931454650561Harlingen Teege C1023
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P2441332653524134322930262833404547464227374145481Laredo 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.