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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 243444950525148414133203143446760876748707061592Ft. Worth Northwest C13/AH302
Keller C17242414549525050394033203138376553775348666954562Keller C17
Frisco C31/C680148404953595762444243213345405659745052706456551Frisco C31/C680
Midlothian OFW C52/A1371353549445049523635351828NANA5355555845595952501Midlothian OFW C52/A137
Denton Airport South C56/A163/X157151464656606064484340193738415659724755698068641Denton Airport South C56/A163/X157
Arlington Municipal Airport C61134384644514446393333172942407051766544606354501Arlington Municipal Airport C61
Rockwall Heath C69146395250545552454342193545406267775449696359561Rockwall Heath C69
Grapevine Fairway C70/A301/X182146384950575154433839193138416249855557727156481Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071146385246525247464237212943415562585448525957501Kaufman C71/A304/X071
Granbury C73/C681148505050495152473832192845435351736949575954531Granbury C73/C681
Eagle Mountain Lake C75 141424349504948403931183035395446765045636559351Eagle Mountain Lake C75
Parker County C76145535154504860433729142644476051815743566548491Parker County C76
Cleburne Airport C77/C682140465350545352414236162945435959787249636257601Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3NANA5150565052413635203237405755906154656451543Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402130324844494654403134142741345951595139545242461Dallas Executive Airport C402
Greenville C1006/A198144335450525450413840173027404764634546575651531Greenville C1006/A198
Pilot Point C1032157464954646573544546223746415368704748696857611Pilot Point C1032
Italy C1044/A323134365248495052383441182542426660595346526050511Italy C1044/A323
Corsicana Airport C1051140405151525448444033161643426563545441525951561Corsicana Airport C1051
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644229374357545434354430292242414862484345705959502Longview C19/A127/C644
Tyler Airport Relocated C82129354549515146343832282244415468574854556461641Tyler Airport Relocated C82
Karnack C85/AFHP30313231394662604240453427264341NA685839384344NA381Karnack C85/AFHP303
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151249555675504247513141615251506242445653384449562El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159142535377463845543036494544456038425646354144661Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 151565382494448533341545249466044425346374446621Chamizal C41/AH126
Socorro Hueco C49/F312146565369495349723245495051495856636149384145741Socorro Hueco C49/F312
Skyline Park C72153525363494549593841575247536648435845384551581Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N37535449495047484840384747474546445147373840353BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414144454569414244533140444742404339405342283341541Ivanhoe C414
Cd Juarez Delphi C6631 N32NANANANANANANANANANANANANANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Waco
Waco Mazanec C1037139395851535754393540192246405067595450606150611Waco Mazanec C1037
Temple Georgia C1045143476148565659393543222448425377645148656153641Temple Georgia C1045
Killeen Skylark Field C1047159415653635770484641212847455469745351656457641Killeen Skylark Field C1047
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 226174434544340443323292940405169475755575755472Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412262046365544483831253127363748NA385149555755472West Orange C9/A141
Port Arthur West C28/A128/A228127154736524538383322292438375558446564736568541Port Arthur West C28/A128/A228
Hamshire C64/C654125173742534338333521262537396360477270765969561Hamshire C64/C654
SETRPC Port Arthur C6281 N20173731433832302618252129324947386047635955501SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654127NA4836484128353122322638396754455148695653571SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N20194832564251453326303039395079494844515547421SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643132NANANA414541393324292940435365486469686069551SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12815453353NA37403323292639405167476060635865531Nederland High School C1035
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Austin
Austin Northwest C3/A322244405654534952383431222139435566574649585453752Austin Northwest C3/A322
Audubon C38152435458575155423934232039425371685349625857661Audubon C38
Fayette County C6012 N41375252535338333529333239425661484949586154542Fayette County C601
Dripping Springs School C6141 N53394953554755383633192537405169645151646054671Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N37254442414139302824202031334655413438444541451CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N53435554585159434037212443425271694847585453711CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N1NA54676074NANANANANANANANA4452454041494444621Gorzycki Middle School C1603
Lockhart C16041 N44285051504845373631224038436762554453585654621Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N42324950504338333229183235386561474047535150651CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N18182824242422181616121324233138312930353633371CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G316235203840494242374324293527375959485669585960422Houston East C1/G316
Houston Aldine C8/AF108/X150 2403537425193941452130353438546048494741452532Houston Aldine C8/AF108/X150
Channelview C15/AH115 328183934493838323422283630436256485060545453453Channelview C15/AH115
Northwest Harris Co. C26/A110/X154238394450535144455226353838415460515350565352562Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239131173941464637313820293128406154465455656466491Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45127144140504835333620273229466858484858647566561Seabrook Friendship Park C45
Houston Bayland Park C53/A146 133214954504735304220343134426056436790677465561Houston Bayland Park C53/A146
Conroe Relocated C78/A321160394544785070616832343342466069654545525050371Conroe Relocated C78/A321
Manvel Croix Park C84134155660484637264020362833445757477157827275571Manvel Croix Park C84
Clinton C403/C304/AH113 323143937454133263019282926344538305365596258463Clinton C403/C304/AH113
Houston North Wayside C405133263739484640344321343827385253425055534950481Houston North Wayside C405
Houston Monroe C406126153841434233253320282628375046375348685760401Houston Monroe C406
Lang C408236334250504440344723373432395358475753605755482Lang C408
Houston Croquet C409233185251504538294322423031425756447775747376552Houston Croquet C409
Houston Westhollow C410134284255474738314023393333385453416470686562551Houston Westhollow C410
Houston Texas Avenue C411129213943464137303820373227345249395672595858491Houston Texas Avenue C411
Park Place C416133174144484541314222353129385953426671656865451Park Place C416
Sheldon C5511 N35203434473646363722293733395555464448504847421Sheldon C551
Baytown Wetlands Center C5521 N26123236453934283114242827385750455155555760471Baytown Wetlands Center C552
Crosby Library C5531 N40203233504154354422294233405659514340484647401Crosby Library C553
West Houston C5541 N16192034303620192313231620162624NANANANANANANA1West Houston C554
La Porte Sylvan Beach C5561 N2614343945413530301824262339584329NANANANANANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N43253642544551484825304531364960504339504445451Mercer Arboretum C557
Tom Bass C5581 N25103944383930213213241824334443325746715559401Tom Bass C558
Katy Park C5591 N3032395445503432392236323439505342606NA5956521Katy Park C559
Atascocita C5601 N42233133514251434723264229334656464140424343431Atascocita C560
Meyer Park C5611 N42354044524747445426324136395060494848534950531Meyer Park C561
Bunker Hill Village C5621 N33214250454334304221353129374952415660655856521Bunker Hill Village C562
Huffman Wolf Road C5631 N33152222403048274021243926344756493634363739371Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N35204041495344394724343529426362526070646864491HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N38204340595058354424363942507267576265675867551Wallisville Road C617
Danciger C618 1 N31155365474728223419322534425351424854626761581Danciger C618
Mustang Bayou C619 1 N29166049484736323622402433435153465052645660751Mustang Bayou C619
Texas City 34th St. C620 1 N2211413243NA303231812913323338435157736066591Texas City 34th St. C620
UH Moody Tower C6951 N39205048545348364926383537466664496795757570591UH Moody Tower C695
U of H-Sugarland C6961 N32174258434634293320343031375051407576737178541U of H-Sugarland C696
UH Coastal Center C6971 N28156441504535373421322327465554435550675559611UH Coastal Center C697
UH WG Jones Forest C6981 N52264443684960526232343041425867584645535051521UH WG Jones Forest C698
UH West Liberty C6991 N47283938574768425228343940436378654943485052481UH West Liberty C699
Lynchburg Ferry C1015/A165 127193538484135323421283335395955454853635861431Lynchburg Ferry C1015/A165
Lake Jackson C1016 132176949494832323822292234436251434554636261621Lake Jackson C1016
Baytown Garth C1017136183837544653354122343638446361535759615962501Baytown Garth C1017
Galveston 99th St. C1034/A320/X183131NA4751575344434525372839536356545157635758511Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23251434864545648373433214141415058614953626867932San Antonio Northwest C23
Camp Bullis C58161475571596559423937203243465862735155656868851Camp Bullis C58
Calaveras Lake C59143335865514440323229233742455962484352546265651Calaveras Lake C59
Elm Creek Elementary C5011 N43375463463938323130214238415555504349556062831Elm Creek Elementary C501
Fair Oaks Ranch C5021 N53424562546452413635183240424961714653565962661Fair Oaks Ranch C502
Bulverde Elementary C5031 N55404857565558383833173139425565714452585860621Bulverde Elementary C503
New Braunfels Airport C5041 N44325256514841363630194139426664534152545657661New Braunfels Airport C504
City of Garden Ridge C5051 N53404962554749343431213741446868544453565860761City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N45375557545143353830193238406062554354596059631Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N45355466514938313328223543465966514454566265691Heritage Middle School C622
CPS Pecan Valley C6781 N51324764494043323429204337405562544049525759761CPS Pecan Valley C678
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4233215662533926293126282853565751473955546765672Corpus Christi West C4
Corpus Christi Tuloso C2113320556251312524NA22283249515449433446436261621Corpus Christi Tuloso C21
Victoria C87139225662523930283026383542475955464350697160581Victoria C87
Inez C6091 N30184650453625212721343538384244384347706362531Inez C609
Coleto C6241 N37194354453029212522342440395151413648606556511Coleto C624
Aransas Pass C6591 N23145155513922242722242351505647443654546863621Aransas Pass C659
Holly Road C6601 N25154957463420242521232044434643403148516360591Holly Road C660
Violet C6641 N30185359472621212720252544484945402945476161631Violet C664
Ingleside C6851 N25164652483522242723272543465046423350475859571Ingleside C685
Odem C6861 N33215253483327263024293148515749433047475858581Odem C686
Taft C6871 N38226060554133283127313048546352473651526565661Taft C687
Cuero C16021 N45285454534843333430333344497263524458637276611Cuero C1602
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143122224545402932222118282331355139363037433644491Mission C43/AP143
Brownsville C80/AGP180123246162462722262421212140435843352640405148501Brownsville C80/AGP180
Harlingen Teege C10231NANA4949493441293224282644485352393145465056561Harlingen Teege C1023
AreaMonitoring SitePOCOctober 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244133265352413432293026283340454746422737414548561Laredo 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.