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Daily Maximum Eight-Hour Ozone Averages for December 2014

The table below lists the peak daily maximum eight-hour ozone concentrations measured in December 2014 in each community where the TCEQ measures ozone. Concentrations that are rated Moderate or higher are color-highlighted based on the EPA-defined Air Quality Index colors. (See Interpreting the AQI.) All ozone measurements are in parts per billion.

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 with AQI colors
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 218169152731132161324303832252466882Ft. Worth Northwest C13/AH302
Keller C1721715111824301318710212837302122871092Keller C17
Frisco C31/C68011817101723291819141720214032232312610111Frisco C31/C680
Midlothian OFW C52/A137117171819253018191224293238302522128761Midlothian OFW C52/A137
Denton Airport South C56/A163/X15711920111829311719101118264233252512101191Denton Airport South C56/A163/X157
Arlington Municipal Airport C6111713131722271518519272837292221115561Arlington Municipal Airport C61
Dallas North No.2 C63/C6791NANANANANVNV1718711232839312221105NV61Dallas North No.2 C63/C679
Rockwall Heath C691181712202531212122182531403524NANV71351Rockwall Heath C69
Grapevine Fairway C70/A301/X1821181781327301621672527393123NV10711111Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X0711181817202832222021202031363323211251081Kaufman C71/A304/X071
Granbury C73/C681120231619303413221529252836302626161115161Granbury C73/C681
Eagle Mountain Lake C75 118201319283012171192029363022237912111Eagle Mountain Lake C75
Parker County C76122271825353816221837283440342630111416161Parker County C76
Cleburne Airport C77/C6821182118212734162617372931383128251779101Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 316NVNV1221311816510202538302121NV6553Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40211513714202917174142627362921208NANANA1Dallas Executive Airport C402
Greenville C1006/A198118211219252919202623101037312321961251Greenville C1006/A198
Pilot Point C103211920111625271820171913163930232414713131Pilot Point C1032
Italy C1044/A3231151718NVNV3222211834283237292520128641Italy C1044/A323
Corsicana Airport C1051115NANV253034252219332739363629211381181Corsicana Airport C1051
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C64422017212422231926271861831383319NV614142Longview C19/A127/C644
Tyler Airport Relocated C8211926252523292229322321343940312210510121Tyler Airport Relocated C82
Karnack C85/AFHP303112161018212019222419893238331811813131Karnack C85/AFHP303
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X1512NV23282025414228NV2529303840273137322632El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X15912424161729393933292829213837213231202311Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 11924241922354127232423304041242538242701Chamizal C41/AH126
Socorro Hueco C49/F31212827272130413832322830NV3840243537322401Socorro Hueco C49/F312
Skyline Park C7213230273034414139322836324444243942363551Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N38NV3128334032292724303442404137364142353BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141NANANV19273632262323NV253840223036222931Ivanhoe C414
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Waco
Waco Mazanec C10371182017192433202629383237383231221613941Waco Mazanec C1037
Temple Georgia C1045120231319253419272940323638333516151617131Temple Georgia C1045
Killeen Skylark Field C1047122251319293423313345343741363730161621211Killeen Skylark Field C1047
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 22651921291926263223393939493425221315132Beaumont-Downtown C2/A112/C2002
West Orange C9/A14122631522272024222924313840453022211213142West Orange C9/A141
Port Arthur West C28/A128/A22813062125272027263234424244463124271719151Port Arthur West C28/A128/A228
Hamshire C64/C65412972525301925273633444641473326312424151Hamshire C64/C654
SETRPC Port Arthur C6281 N288222224202625263135393942302430NANV151SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C165413282229282330273331394341443225262419161SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N2851522302125253024293940473723221214151SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643124416202416232228273334333926202214NANA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 12961825302026273332404341473224261816131Nederland High School C1035
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Austin
Austin Northwest C3/A32221920617232721282532323036323624141324212Austin Northwest C3/A322
Audubon C3812121817253121282835273037333727151325191Audubon C38
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G3162116121320121618272740423538282121161182Houston East C1/G316
Houston Aldine C8/AF108/X150 21091717211419232831384441393224252012112Houston Aldine C8/AF108/X150
Channelview C15/AH115 3991715191418273225293035322828222219123Channelview C15/AH115
Northwest Harris Co. C26/A110/X154213121724261519283517364640383426202212122Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP239116NV1520221519NV3929404137372724281619121Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4512542026251518263539414338373027322026141Seabrook Friendship Park C45
Houston Bayland Park C53/A146 11081521231316242331394641392824231912NA1Houston Bayland Park C53/A146
Conroe Relocated C78/A32111414202725192330353732474142NV26262312151Conroe Relocated C78/A321
Manvel Croix Park C841NV7222625141722373542464240322629161891Manvel Croix Park C84
Clinton C403/C304/AH113 31481514131418223124263135341622202115103Clinton C403/C304/AH113
Houston North Wayside C4051881613141217202925303633342020212114101Houston North Wayside C405
Houston Monroe C4061144162022111315232931363434261724141471Houston Monroe C406
Lang C40829712141912162028243440343627201615782Lang C408
Houston Croquet C4092107202323141522233040454139302424171382Houston Croquet C409
Houston Westhollow C41011111152222141725NANANANANANANANANANANANA1Houston Westhollow C410
Houston Texas Avenue C4111106121615111720263028363736241921181171Houston Texas Avenue C411
Park Place C4161164152020111318203239433839261923131371Park Place C416
Sheldon C5511 N10111919161518263127303435302727232220121Sheldon C551
Baytown Wetlands Center C5521 N1781618161217232726313632312221231519111Baytown Wetlands Center C552
Crosby Library C5531 N1791719151417253031354137372825252018111Crosby Library C553
La Porte Sylvan Beach C5561 N2181923221520243037294238322725281724141La Porte Sylvan Beach C556
Mercer Arboretum C5571 N1111172318131724313029393834242224189111Mercer Arboretum C557
Tom Bass C5581 N175172121111417232837403635242025151471Tom Bass C558
Katy Park C5591 N1011131819131723292731383632272118181191Katy Park C559
Atascocita C5601 N1081720161216212929303735322323241819101Atascocita C560
Meyer Park C5611 N13131722221518263126344137362924212111121Meyer Park C561
Bunker Hill Village C5621 N9810181911162225263642363526232117881Bunker Hill Village C562
Huffman Wolf Road C5631 N169181918131722NANV323731342722221613101Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N1891918211419243227404140352826262118111HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N24122126241822324236424844443131302528161Wallisville Road C617
Danciger C618 1 N21112227261823314148485045423532402314111Danciger C618
Mustang Bayou C619 1 N30111827281923294543434644413227351924111Mustang Bayou C619
Texas City 34th St. C620 1 N3010213030202329NVNANANVNANANANANANANANA1Texas City 34th St. C620
UH Moody Tower C6951 N2081722231619263439465043443425272215101UH Moody Tower C695
U of H-Sugarland C6961 N158222424121522263843454137262328NV971U of H-Sugarland C696
UH Coastal Center C6971 N2971828281822314137434643413230NV1121101UH Coastal Center C697
UH WG Jones Forest C6981 N141318272518223141313345413838252523NV131UH WG Jones Forest C698
UH West Liberty C6991 N25102123231621293835404637423434292017131UH West Liberty C699
Lynchburg Ferry C1015/A165 11481419231417242729313636312223NV121771Lynchburg Ferry C1015/A165
Lake Jackson C1016 12892826292021264446474743423330402624101Lake Jackson C1016
Baytown Garth C1017123122024221720NV3332374338392725272225141Baytown Garth C1017
Galveston 99th St. C1034/A320/X183130103430302219294445444543413534363232181Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2321918422252728303341294240333631171733262San Antonio Northwest C23
Camp Bullis C5811920220232525303336233939323932171934261Camp Bullis C58
Calaveras Lake C59115161027262827323725334243333527191430251Calaveras Lake C59
Heritage Middle School C6221 N17171226262526333843394242343626181231261Heritage Middle School C622
CPS Pecan Valley C6781 N121162221212125323830383830292414925211CPS Pecan Valley C678
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4223162830262616194441474643372826323224222Corpus Christi West C4
Corpus Christi Tuloso C21122162727262815183941464544363026363322231Corpus Christi Tuloso C21
Victoria C8711514303026171933404143464338312828NVNV181Victoria C87
Aransas Pass C6591 N18102526192015274638424238332225NVNANANA1Aransas Pass C659
Holly Road C6601 N22132526232316164242444440342625342924191Holly Road C660
Violet C6641 N23132630232613153839444341332722343019191Violet C664
Ingleside C6851 N12NVNANANA2618254042444441372825343124201Ingleside C685
Odem C6861 N23142830232513223738424340343022322920201Odem C686
Taft C6871 N17193334273118264345495046393127373321221Taft C687
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP14312610142319201313343030332926272927818191Mission C43/AP143
Brownsville C80/AGP180128111927232222214240394136302933322815151Brownsville C80/AGP180
Harlingen Teege C1023133192732272926274942414540363339383122221Harlingen Teege C1023
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P244116111024NV291582421NV302723202416112161Laredo Vidaurri C44/AFGP144/P244
POC (Parameter Occurrence Code): a code used to correctly separate data from multiple instruments at one site.
NV - There are not enough valid eight-hour averages for this day (there must be eighteen valid eight-hour averages).
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.