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Peak Daily One-Hour Ozone Averages for August 2014

The table below lists the peak daily one-hour ozone concentrations measured in August 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 SitePOCAugust 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 243505476725449484554525570906046393550392Ft. Worth Northwest C13/AH302
Keller C17238445165745554474451605059946445403352372Keller C17
Frisco C31/C680135445864786968615956584750877551525963441Frisco C31/C680
Midlothian OFW C52/A137138495357464751503736705474595241282850381Midlothian OFW C52/A137
Denton Airport South C56/A163/X157138455564946468545449595050937656494961431Denton Airport South C56/A163/X157
Arlington Municipal Airport C61136505366595148443644645273685141332646351Arlington Municipal Airport C61
Dallas North No.2 C63/C679134445659625859514749574756776355373954421Dallas North No.2 C63/C679
Rockwall Heath C69134475659535345504754595051655858304150451Rockwall Heath C69
Grapevine Fairway C70/A301/X182138445865866058514755594954946651414154411Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X071133485662485446454938584650505841273346431Kaufman C71/A304/X071
Granbury C73/C681146586174545045473644685686675142394045401Granbury C73/C681
Eagle Mountain Lake C75 135445063755044414043584752925942343440341Eagle Mountain Lake C75
Parker County C76142495671685744433942615769865844373140331Parker County C76
Cleburne Airport C77/C682151636166575255503839756387685342313147371Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 33647586363545348435264515977554919NANANA3Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C402136465361494847504045665471675041293149431Dallas Executive Airport C402
Greenville C1006/A198132455559414945454348554544575855324248391Greenville C1006/A198
Pilot Point C1032140465666857475626048585052938556536564471Pilot Point C1032
Italy C1044/A323138465348484649534238796155544645303649391Italy C1044/A323
Corsicana Airport C1051135485548505543443646565249515444294143471Corsicana Airport C1051
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C644235404152874131383132605257565234292936302Longview C19/A127/C644
Tyler Airport Relocated C82138514251393637364137544647725636284145341Tyler Airport Relocated C82
Karnack C85/AFHP303133363639445856526038504246535646284651371Karnack C85/AFHP303
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151249585958737561705552474562495460807952462El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15914752504879626368NANA403747544955756448411Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 14752535180716865535038NANANA5357797753471Chamizal C41/AH126
Socorro Hueco C49/F312151555456706163875248433947506168636154521Socorro Hueco C49/F312
Skyline Park C72153565658817972665246454251545760816055461Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N49525557615550464347403855585147474847453BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C414142494445766362654637363437524951625249421Ivanhoe C414
Cd Juarez Delphi C6631 N33464541625049665336NANANANANANANANANANA1Cd Juarez Delphi C663
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Waco
Waco Mazanec C1037145475352555047534240576556534745285149341Waco Mazanec C1037
Temple Georgia C104515052565360545156493935NA70696050344843371Temple Georgia C1045
Killeen Skylark Field C1047149515554575460564940376463656255364247431Killeen Skylark Field C1047
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 240344057533329242730415070676634232423272Beaumont-Downtown C2/A112/C2002
West Orange C9/A141232303758423632293140504567626834232826252West Orange C9/A141
Port Arthur West C28/A128/A228139415350413224222324445477625239232525241Port Arthur West C28/A128/A228
Hamshire C64/C654140324747383129262628565579685236262523261Hamshire C64/C654
SETRPC Port Arthur C6281 N3335533936292119212233455750422920NANA231SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654143475642383422232523335547504426252722291SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N3431NA2554629243233424337496236252626291SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643141404551423226242628455577NANANANANA25271SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 139374160443326232527455170855536232523271Nederland High School C1035
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32224749504456514344374244615765524435NANA332Austin Northwest C3/A322
Audubon C38147515347645951484146356567695349394040361Audubon C38
Fayette County C6012 N5348535755493834113113254964035293029302Fayette County C601
Dripping Springs School C6141 N46525452565550484140386664715447383939361Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N43394438434336312627385652673935272931291CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N46495250546455564344326466596352434345391CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N45505449475043413737446257654442323233311Gorzycki Middle School C1603
Lockhart C16041 N594646332515155NANA78NA5766717770NA34321Lockhart C1604
CAPCOG San Marcos Staples Road C16751 N46515050454638342628396056584035272829281CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N28283128302926252123234140393731272626241CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162563638594352313227NANANANANA3732213124302Houston East C1/G316
Houston Aldine C8/AF108/X150 246323941495533363241504545606631233622332Houston Aldine C8/AF108/X150
Channelview C15/AH115 355353445385132323045686055615735223223303Channelview C15/AH115
Northwest Harris Co. C26/A110/X154244343947675336352828365151775532253332342Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239157363951424324262627526166504525202522261Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C45162405551384728252229486961524524233221251Seabrook Friendship Park C45
Houston Bayland Park C53/A146 148444872384326282330436874744327203017281Houston Bayland Park C53/A146
Conroe Relocated C78/A321144373943398363664537425645579141274533451Conroe Relocated C78/A321
Manvel Croix Park C841515156753742242423294079107543426202421271Manvel Croix Park C84
Clinton C403/C304/AH113 346373760373520212229515464523923181713203Clinton C403/C304/AH113
Houston North Wayside C405143364047505121312743685753656233202918301Houston North Wayside C405
Houston Monroe C406149374361354122231927406879533624192520261Houston Monroe C406
Lang C408246384358605533382739536363775729233326312Lang C408
Houston Croquet C409249455175404224262426437184634026212820282Houston Croquet C409
Houston Westhollow C410147364471465027292231385870874226203222271Houston Westhollow C410
Houston Texas Avenue C411148384567434324262532566671694627202819261Houston Texas Avenue C411
Park Place C41615135426440462627252953659755NANANA2621NA1Park Place C416
Sheldon C5511 N41262932324627272632434037484822152116221Sheldon C551
Baytown Wetlands Center C5521 N54323743354527272628595461474429212824241Baytown Wetlands Center C552
Crosby Library C5531 N47313241436643433742575046657236274429341Crosby Library C553
West Houston C5541 N37303455413924241824334251683321192117151West Houston C554
La Porte Sylvan Beach C5561 N703943514247303126346069585647312432NANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N40323440516142473540504847667936253629381Mercer Arboretum C557
Tom Bass C5581 N46404359293420201721345777442616121713181Tom Bass C558
Katy Park C5591 N44344180514427272425415456953829212822271Katy Park C559
Atascocita C5601 N40303340496239453738484838627836264025351Atascocita C560
Meyer Park C5611 N40323743586337402733405452737133263831381Meyer Park C561
Bunker Hill Village C5621 N43374374405227312332436066835125193023271Bunker Hill Village C562
Huffman Wolf Road C5631 NNA282935366541453849464436566837243828291Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N56384161455330312641826066645433233225311HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N58363951446437393953846168686137273931331Wallisville Road C617
Danciger C618 1 N40436161323921222221356492672326192119261Danciger C618
Mustang Bayou C619 1 N45475655353625242425387866543625233020251Mustang Bayou C619
Texas City 34th St. C620 1 N57494651403821222228428855543824202819271Texas City 34th St. C620
UH Moody Tower C6951 N58485576515232313136618181745124243724321UH Moody Tower C695
U of H-Sugarland C6961 N45384881354423241922377082693423192319251U of H-Sugarland C696
UH Coastal Center C6971 N50494552373524222327408355533724213118261UH Coastal Center C697
UH WG Jones Forest C6981 N45363845627649594736385747599436284030451UH WG Jones Forest C698
UH West Liberty C6991 N46343642397353515055535545708344324736371UH West Liberty C699
Lynchburg Ferry C1015/A165 154333247374427282641655257495228202723261Lynchburg Ferry C1015/A165
Lake Jackson C1016 128485554333320192120285563612822202018221Lake Jackson C1016
Baytown Garth C1017155343645396235363650755563655834263829301Baytown Garth C1017
Galveston 99th St. C1034/A320/X183156546062433521262628439660604525242223301Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C23245524963736148494542665963825045353940332San Antonio Northwest C23
Camp Bullis C581455253627167535448456556647559513842NANA1Camp Bullis C58
Calaveras Lake C59159635961594738354032405560664139293232321Calaveras Lake C59
Elm Creek Elementary C5011 N63565580585740374431365179864041273133311Elm Creek Elementary C501
Fair Oaks Ranch C5021 N40464554656352544446394956635548373944361Fair Oaks Ranch C502
Bulverde Elementary C5031 N42494856586553524447525660605750344142341Bulverde Elementary C503
New Braunfels Airport C5041 N54636163575042393033446860644340293332351New Braunfels Airport C504
City of Garden Ridge C5051 N43494855505236363433475157604338242731261City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N57565352545042383036406959694140313332341Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N58645963594739354231485759724344293131331Heritage Middle School C622
CPS Pecan Valley C6781 N56575767585341404437495978815149313638341CPS Pecan Valley C678
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4222556062593329282218224465342527243735272Corpus Christi West C4
Corpus Christi Tuloso C21123575659612826272219223856452625223230221Corpus Christi Tuloso C21
Victoria C87145494959533624282223314353514528232724251Victoria C87
Inez C6091 N50494958442921232023344047412524212220241Inez C609
Coleto C6241 N17333245362114171213192834281918142220211Coleto C624
Aransas Pass C6591 N16515270493628261815194852262327243431271Aransas Pass C659
Holly Road C6601 N16515661493027221813153755251922193230211Holly Road C660
Violet C6641 N20595961722525262216174558382423192723211Violet C664
Ingleside C6851 N19505362533428292018184444272427243430251Ingleside C685
Odem C6861 N26595727NANANANANANANANANANANANANANANANA1Odem C686
Taft C6871 N26606274643732302221344154442530243735291Taft C687
Cuero C16021 N57515761534235323131355958514236282925271Cuero C1602
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143130365153532827263227273439362824203627221Mission C43/AP143
Brownsville C80/AGP180120275053382227233020193730252524224031231Brownsville C80/AGP180
Harlingen Teege C1023128355353492733294328323430342924234535241Harlingen Teege C1023
AreaMonitoring SitePOCAugust 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244125315465514235345327243250463734252930321Laredo 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.