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Peak Daily One-Hour Ozone Averages for August 2016

The table below lists the peak daily one-hour ozone concentrations measured in August 2016 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 2016POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 2374351526352414857524848514137402528264449323538422Ft. Worth Northwest C13/AH302
Keller C172404852506254415054535249473737452525284141323337422Keller C17
Frisco C31/C6801496463739169536478677372493537362439254340443646551Frisco C31/C680
Midlothian OFW C52/A1371393451504544314238413544524428272325294742243134321Midlothian OFW C52/A137
Denton Airport South C56/A163/X1571486158658276506879686254514544543228284845383846601Denton Airport South C56/A163/X157
Arlington Municipal Airport C611393548475047324046453843494033272126244647242933311Arlington Municipal Airport C61
Dallas North No.2 C63/C6791435055667961475772566174503831342032284840383138441Dallas North No.2 C63/C679
Rockwall Heath C69139395563565945495944417747342822NA28254440332829321Rockwall Heath C69
Grapevine Fairway C70/A301/X1821395057627671465767596559503835422432294341383439491Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711363954595646465549503847543431252524253633283132301Kaufman C71/A304/X071
Granbury C73/C6811433944475240343438443939534742353228274361233641311Granbury C73/C681
Eagle Mountain Lake C75 1425050557364435663545555544442462519213545293538491Eagle Mountain Lake C75
Parker County C761353540435143374046404240504346523225274143253234341Parker County C76
Cleburne Airport C77/C6821474854545852414752544647655647363732NANANANA4347401Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3434354596956455162515065514033382033274947383035373Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C4021413754545248354147463651494028292022254544252732301Dallas Executive Airport C402
Greenville C1006/A1981363550625752384957434253483026292130243439263138331Greenville C1006/A198
Pilot Point C10321576970789273567177776862483840392829294644403952571Pilot Point C1032
Italy C1044/A3231403559444848334040443844545333242825313735312825251Italy C1044/A323
Corsicana Airport C10511385161NANANANANA52553745584234242425264031343030351Corsicana Airport C1051
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C6442274164495650475653765354513235332421243323282522402Longview C19/A127/C644
Tyler Airport Relocated C821364255535746464850495051622835272523263731232223391Tyler Airport Relocated C82
Karnack C85/AFHP3031446453684539444540434443442127272422382425282628441Karnack C85/AFHP303
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X15126165756993886910755555465515537645665734651735449692El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15915865606990746797505432NANANANANANANANANANA316047651Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 15775707310340NA11356525554475255584959794246675748661Chamizal C41/AH126
Socorro Hueco C49/F3121515762687274546156586174485059584865754444486155531Socorro Hueco C49/F312
Skyline Park C721657784738464647756705349495057585155754543786849661Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 NNANANANANANANANANANANANANANANANANANANANANA344043603BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141566366706755487548554643394251503947754241626249621Ivanhoe C414
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Waco
Waco Mazanec C10371373640434337323941404253595837232531283921282627261Waco Mazanec C1037
Temple Georgia C10451413642474539374042404752545236232628393430303234351Temple Georgia C1045
Killeen Skylark Field C10471484649535347444344435051535639252534383231323946451Killeen Skylark Field C1047
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 2305576732730323845505631393528232928211825251825452Beaumont-Downtown C2/A112/C2002
West Orange C9/A1412424156674436455953485326363626232522191823221720412West Orange C9/A141
Port Arthur West C28/A128/A2281275466582431314243423223423330262924221931232024381Port Arthur West C28/A128/A228
Hamshire C64/C654130313542263834364653572848333126NANANANANANANA17531Hamshire C64/C654
SETRPC 40 Sabine Pass C640/C16541202742402923253842332317423427253021181721171521261SETRPC 40 Sabine Pass C640/C1654
SETRPC 43 Jefferson Co Airport C6431306169582634354345494130433026242522211828201923371SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 1266262632734334143484726433628253224222028232028421Nederland High School C1035
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Austin
Austin Northwest C3/A3222323839444337444241374769744529292732353231272930332Austin Northwest C3/A322
Audubon C381353840444336394442404452623319232228303025273133391Audubon C38
Fayette County C6012 N292929433128273338292937473025272125262324222223242Fayette County C601
Dripping Springs School C6141 N343844424137393739384752574930343336353934333332371Dripping Springs School C614
CAPCOG McKinney Roughs C6841 N273029383029262831273235473522242021252321212625281CAPCOG McKinney Roughs C684
CAPCOG Lake Georgetown C6901 N3947464748394150444751595746212350NANANANANA3337491CAPCOG Lake Georgetown C690
Gorzycki Middle School C16031 N323836393534383732333759604522292524242828252827321Gorzycki Middle School C1603
Lockhart C16041 N323532373131293035303336483824242226272322242928251Lockhart C1604
St. Edwards University C16051 N252728332925322629252945473821211921222023202424211St. Edwards University C1605
CAPCOG San Marcos Staples Road C16751 N303334383331283132353442403926252628292126262931261CAPCOG San Marcos Staples Road C1675
CAPCOG Hutto College Street C66021 N293233383731363236294051553723252325283125262324291CAPCOG Hutto College Street C6602
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162416084654637456473323234403427332315222435212323332Houston East C1/G316
Houston Aldine C8/AF108/X150 25381112877652558188693948465035332731332939263637472Houston Aldine C8/AF108/X150
Channelview C15/AH115 3479699725647537378644637454030252526262437212225463Channelview C15/AH115
Northwest Harris Co. C26/A110/X1542446673714929316272383433462729252727223631272831422Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP2391274156513127284138303425363236272720242128222022351Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C451353648483430344035313125403330303427231926242425301Seabrook Friendship Park C45
Houston Bayland Park C53/A146 1343743503839404549434030443639393325252454432125321Houston Bayland Park C53/A146
Conroe Relocated C78/A3211767175867133507870634646573329333232383123284750451Conroe Relocated C78/A321
Manvel Croix Park C841282836433028283537312926382949312922212139342328361Manvel Croix Park C84
Clinton C403/C304/AH113 3314756453330324356373726403536372217182436212321313Clinton C403/C304/AH113
Houston North Wayside C4051396777614737425975523733373127331918192136212423291Houston North Wayside C405
Houston Monroe C4061272838382425263234313623NANA31312318181734202020271Houston Monroe C406
Lang C4082455762615439456364523833414238282623263243322226352Lang C408
Houston Croquet C40922734NA423029313539343427373035312719221943321822302Houston Croquet C409
Houston Westhollow C4101444343474334355047373431483841282827222348362528451Houston Westhollow C410
Houston Texas Avenue C4111333958623139344354444135403638342617242744242528371Houston Texas Avenue C411
Park Place C4161323548483331324348424127393536432618222245252523331Park Place C416
Sheldon C5511 N43667253493943706052363639242312NANANANANANANANANA1Sheldon C551
Baytown Wetlands Center C5521 N3729NANA34323346181819122112896633534471Baytown Wetlands Center C552
Crosby Library C5531 N656583646656639469715051524226222923323130253236491Crosby Library C553
West Houston C5541 N424550232020202429204321202020212021222324222222221West Houston C554
La Porte Sylvan Beach C5561 N3237464432323237313532274328302530272211NANANANANA1La Porte Sylvan Beach C556
Mercer Arboretum C5571 N173041342812193436311920211712101110141514111716201Mercer Arboretum C557
Tom Bass C5581 N241926312222222529262319302935292116151531221619291Tom Bass C558
Katy Park C5591 N243333472922214040272725352733232025171738242617371Katy Park C559
Atascocita C5601 N526591736545497565613344423926252922252528203132331Atascocita C560
Meyer Park C5611 N435572695128325965453231362224172017202624192228301Meyer Park C561
Bunker Hill Village C5621 N404043464133365049373427392831232113162238281723381Bunker Hill Village C562
Huffman Wolf Road C5631 N715672636651527765554756513520172522353120203440371Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N38717961434053973494732454134362419242342232324351HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N506750535560691769766239514236263126282631242828561Wallisville Road C617
Danciger C618 1 N181723282320211423202020282225222416141625161316321Danciger C618
Texas City 34th St. C620 1 N243548493534321854272725433741353328232130272526341Texas City 34th St. C620
UH Moody Tower C6951 N313748523531334351444134443840392819252448302727431UH Moody Tower C695
U of H-Sugarland C6961 N323031422928363738313125463339302728211950322122351U of H-Sugarland C696
UH Coastal Center C6971 N212932442129243022212220293037302622181726241919301UH Coastal Center C697
UH WG Jones Forest C6981 N748591917435468475724544563736323134333626304244421UH WG Jones Forest C698
UH West Liberty C6991 N57305052554943166347405321NA26192822343120203127391UH West Liberty C699
Lynchburg Ferry C1015/A165 1437387704839477264594230434630232619232133211923541Lynchburg Ferry C1015/A165
Lake Jackson C1016 1202130422021192024221919213026362920191822151617331Lake Jackson C1016
Baytown Garth C10171506867535658657972776541493832232823262429232527521Baytown Garth C1017
Galveston 99th St. C1034/A320/X1831212541483725272523222419413438313327232132242527381Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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San Antonio
San Antonio Northwest C232323945394233313841354049504219312929322632252932332San Antonio Northwest C23
Camp Bullis C58 1424550494841415148474962504023202733333526263236411Camp Bullis C58
Calaveras Lake C591302832342929263132313437464231302425262625232635251Calaveras Lake C59
Elm Creek Elementary C5011 N323031312929283032283639514018342327272534242830261Elm Creek Elementary C501
Fair Oaks Ranch C5021 N424550504739394948444852463928212732351815263136391Fair Oaks Ranch C502
Bulverde Elementary C5031 N364349444242414344445462473920252534332861283236411Bulverde Elementary C503
New Braunfels Airport C5041 N313135363432283130343438413925252529272420252832251New Braunfels Airport C504
City of Garden Ridge C5051 N323132353330333032334657464118252228272724232833291City of Garden Ridge C505
Seguin Outdoor Learning Center C5061 N293032363031262928353634363727272226262221252629271Seguin Outdoor Learning Center C506
Heritage Middle School C6221 N282629312626232728272933363523261920222219NANANANA1Heritage Middle School C622
CPS Pecan Valley C6781 N252728303031262830273646383218232325251925222430271CPS Pecan Valley C678
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C42202023242023212422232520232527272425202125202323202Corpus Christi West C4
Corpus Christi Tuloso C211222327282324222725242832252628272526212128202437221Corpus Christi Tuloso C21
Victoria C871232533352727283028233538353332252127222227192421251Victoria C87
Inez C6091 N181926302021192122182246303029302425222324202322271Inez C609
Holly Road C6601 N232227272326242724262624262832302928232431232626221Holly Road C660
Violet C6641 N2432282623252226242631272831373026NANANANANANANANA1Violet C664
Ingleside C6851 N191822221921202524212221212622232323202027182122181Ingleside C685
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP1431212226232123232423222324333443333128232324212228261Mission C43/AP143
Brownsville C80/AGP18012018201719191822191817NANANANANANANANANANANANANANA1Brownsville C80/AGP180
Harlingen Teege C10231262230242623232924202921273730322624202019222526261Harlingen Teege C1023
AreaMonitoring SitePOCAugust 2016POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P2441262123272624222625251029343645301920213322212223261Laredo 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 - 0.054
51 - 100 Not Defined 0.055 - 0.070
101 - 150 0.125 - 0.164 0.071 - 0.085
151 - 200 0.165 - 0.204 0.086 - 0.105
201 - 300 0.205 - 0.404 0.106 - 0.200
301 - 400 0.405 - 0.504 Not Defined
401 - 500 Not Defined 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.