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Peak Daily One-Hour Ozone Averages for December 2014

The table below lists the peak daily one-hour ozone concentrations measured in December 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 SitePOCDecember 2014POCMonitoring Site
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Dallas-Fort Worth
Ft. Worth Northwest C13/AH302 220191619323715239232834423629289910182Ft. Worth Northwest C13/AH302
Keller C17219171521293515221215243140332526111011162Keller C17
Frisco C31/C680120181219283420242522312943352725161112191Frisco C31/C680
Midlothian OFW C52/A13711921222328362224163232364032302617138121Midlothian OFW C52/A137
Denton Airport South C56/A163/X157121241522363619231516283445372930141913221Denton Airport South C56/A163/X157
Arlington Municipal Airport C6111916152127321925132532334033262515107111Arlington Municipal Airport C61
Dallas North No.2 C63/C6791NANANANA2733202413153031413526271577161Dallas North No.2 C63/C679
Rockwall Heath C691242014242836242837222937453828NA1371791Rockwall Heath C69
Grapevine Fairway C70/A301/X182121191317313518241110323342342925171112161Grapevine Fairway C70/A301/X182
Kaufman C71/A304/X07112319182529372523262624374135272414712111Kaufman C71/A304/X071
Granbury C73/C681119251923333816263236283140333030191617241Granbury C73/C681
Eagle Mountain Lake C75 11922172332351321152125333934262791114221Eagle Mountain Lake C75
Parker County C76124312228404417253040333944373134161519271Parker County C76
Cleburne Airport C77/C682120232124314021322845313642343029201113261Cleburne Airport C77/C682
Dallas Hinton St. C401/C60/AH161 3191671826362023101528294233242417117133Dallas Hinton St. C401/C60/AH161
Dallas Executive Airport C40212216121823342023112029313832252511NANA71Dallas Executive Airport C402
Greenville C1006/A19812526162329362123402915164234262413614111Greenville C1006/A198
Pilot Point C103212022141930312121292220194333272816914231Pilot Point C1032
Italy C1044/A323121192315283625282443323740323023151110101Italy C1044/A323
Corsicana Airport C1051119NA1828333928292838364241403324161115201Corsicana Airport C1051
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Tyler-Longview-Marshall
Longview C19/A127/C6442272124292528223444228213840382211816272Longview C19/A127/C644
Tyler Airport Relocated C8212831292725322634393126434341362413715311Tyler Airport Relocated C82
Karnack C85/AFHP30312619132625282131372210114342382213914201Karnack C85/AFHP303
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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El Paso-Juarez
El Paso UTEP C12/A125/X151213303321324445373832454040433639383637392El Paso UTEP C12/A125/X151
Ascarate Park SE C37/A332/A172/X159131312417364041393435363541423438362933341Ascarate Park SE C37/A332/A172/X159
Chamizal C41/AH126 128323421323645323231364042443934413438391Chamizal C41/AH126
Socorro Hueco C49/F312134333519374442423637414341433140413934391Socorro Hueco C49/F312
Skyline Park C72140373430384343453836454345463643433839441Skyline Park C72
BRAVO Big Bend C67/C316/C656/C6913 N41373535364239313028363946414343374345393BRAVO Big Bend C67/C316/C656/C691
Ivanhoe C4141NANA2418324038312632343740433033382834371Ivanhoe C414
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Waco
Waco Mazanec C1037119212024293624293846374044343425191412111Waco Mazanec C1037
Temple Georgia C1045120251923314020313750384143353730172219271Temple Georgia C1045
Killeen Skylark Field C1047124271722334025364151394248384134192023351Killeen Skylark Field C1047
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Beaumont-Port Arthur
Beaumont-Downtown C2/A112/C2002 23263225312430304336474245523928261825272Beaumont-Downtown C2/A112/C2002
West Orange C9/A14123352724292127273734384344474025251719272West Orange C9/A141
Port Arthur West C28/A128/A22813383428292531334340464447493327312226271Port Arthur West C28/A128/A228
Hamshire C64/C65413283627312331334638494944493730363233271Hamshire C64/C654
SETRPC Port Arthur C6281 N3111332527253131353640424448352634NA17291SETRPC Port Arthur C628
SETRPC 40 Sabine Pass C640/C1654137103132313035323740424646463629343027291SETRPC 40 Sabine Pass C640/C1654
SETRPC Mauriceville 42 C642/C311/C6651 N3762425332428323934384745494228251518281SETRPC Mauriceville 42 C642/C311/C665
SETRPC 43 Jefferson Co Airport C643128723242620262836363736384027242519NANA1SETRPC 43 Jefferson Co Airport C643
Nederland High School C1035 13582629322430344441444546493628292423271Nederland High School C1035
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Austin
Austin Northwest C3/A322222211318283424333441373742364129181527292Austin Northwest C3/A322
Audubon C38125231418313623343643313744364232191629341Audubon C38
Fayette County C6012 NNANANANANANANANANANANANANANANANANANANANA2Fayette County C601
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Houston-Galveston-Brazoria
Houston East C1/G316219102217251718253836475038403124242421162Houston East C1/G316
Houston Aldine C8/AF108/X150 217112523261823304242475145413827283129212Houston Aldine C8/AF108/X150
Channelview C15/AH115 320112319231820324237453738383033242626233Channelview C15/AH115
Northwest Harris Co. C26/A110/X154214142330281821354325455246413728282718232Northwest Harris Co. C26/A110/X154
Hou.DeerPrk2 C35/235/1001/AFH139FP23912382023241974264834454540393129332525201Hou.DeerPrk2 C35/235/1001/AFH139FP239
Seabrook Friendship Park C4512972928271921335242474642413436412931201Seabrook Friendship Park C45
Houston Bayland Park C53/A146 121112728251718333442465043413328282422NA1Houston Bayland Park C53/A146
Conroe Relocated C78/A321120162431311826384346455547463930292917251Conroe Relocated C78/A321
Manvel Croix Park C84130102629282420295247505046423431342130201Manvel Croix Park C84
Clinton C403/C304/AH113 32392021201819304032333639362926242624213Clinton C403/C304/AH113
Houston North Wayside C40511392321181418273834374237362523252525181Houston North Wayside C405
Houston Monroe C40612172325241814233732414136352821282024151Houston Monroe C406
Lang C408221101624211621283736414540393027211816182Lang C408
Houston Croquet C409227103128262016323443464945403228302025222Houston Croquet C409
Houston Westhollow C41012013252925201934NANANANANANANANANANANANA1Houston Westhollow C410
Houston Texas Avenue C41112092023201518283634353941373025252321181Houston Texas Avenue C411
Park Place C41612482426261914273338464741403022291722161Park Place C416
Sheldon C5511 N22132619231920313838423738363032262628211Sheldon C551
Baytown Wetlands Center C5521 N21102420191418283631343934342627272023181Baytown Wetlands Center C552
Crosby Library C5531 N24102423201619313738424439393029302725211Crosby Library C553
La Porte Sylvan Beach C5561 N26112526261821324140454741403035322430221La Porte Sylvan Beach C556
Mercer Arboretum C5571 N12122429231420324041374542372725272612201Mercer Arboretum C557
Tom Bass C5581 N2382326221915253734414339362726291925151Tom Bass C558
Katy Park C5591 N14131723221519303837374340343025232129211Katy Park C559
Atascocita C5601 N17102325211420273640394137372726282262181Atascocita C560
Meyer Park C5611 N14152031261620334137414742383426242516211Meyer Park C561
Bunker Hill Village C5621 N17111526221519313738404640373027262022191Bunker Hill Village C562
Huffman Wolf Road C5631 N2410232223152029338394234352924262325181Huffman Wolf Road C563
HRM-3 Haden Road C603/A114 1 N23122623242121324637494744383332302926211HRM-3 Haden Road C603/A114
Wallisville Road C617 1 N30143226302124394944485246473635353536251Wallisville Road C617
Danciger C618 1 N34122729282125394955515249433835423033281Danciger C618
Mustang Bayou C619 1 N32142331302227346150465046433530373132281Mustang Bayou C619
Texas City 34th St. C620 1 N321337333226253615NANA50NANANANANANANANA1Texas City 34th St. C620
UH Moody Tower C6951 N29122829272221344449525547453631352525221UH Moody Tower C695
U of H-Sugarland C6961 N24113430252017323247454844393028342318221U of H-Sugarland C696
UH Coastal Center C6971 N3192729292326425243474944433536332024201UH Coastal Center C697
UH WG Jones Forest C6981 N14152333291925374537445447434229272718251UH WG Jones Forest C698
UH West Liberty C6991 N33112726281824344246485141443753352831251UH West Liberty C699
Lynchburg Ferry C1015/A165 121102123261719313933444039383029201825161Lynchburg Ferry C1015/A165
Lake Jackson C1016 132114729302323315258515147453537433334291Lake Jackson C1016
Baytown Garth C1017127133024262022274138424640413230313132221Baytown Garth C1017
Galveston 99th St. C1034/A320/X183134137027322722374950484845463943383737271Galveston 99th St. C1034/A320/X183
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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San Antonio
San Antonio Northwest C2322320726293131354149374647364336252038382San Antonio Northwest C23
Camp Bullis C5812221424293128353947364346354636232337371Camp Bullis C58
Calaveras Lake C59118191532303433374443374548364229221733331Calaveras Lake C59
Heritage Middle School C6221 N21191732313032384648414548374228221634341Heritage Middle School C622
CPS Pecan Valley C6781 N14141425262524304043364243333727171430281CPS Pecan Valley C678
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Corpus Christi-Victoria
Corpus Christi West C4232183336283518254948494845393332383431282Corpus Christi West C4
Corpus Christi Tuloso C21132193031273719244548484745393330393626311Corpus Christi Tuloso C21
Victoria C87122163736282020414645495047404132341326291Victoria C87
Aransas Pass C6591 N2813282821331932534244444235292931NANANA1Aransas Pass C659
Holly Road C6601 N30143231243219214746464542362929363229251Holly Road C660
Violet C6641 N31153435253716204547454542363025383321291Violet C664
Ingleside C6851 N1813NANANA3620324746474743393229373531281Ingleside C685
Odem C6861 N34163235263317304445454543363326353324311Odem C686
Taft C6871 N27213641304021395352515149413430393730311Taft C687
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Lower Rio Grande Valley
Mission C43/AP143130111832212517164032343531273331302215241Mission C43/AP143
Brownsville C80/AGP180130122235242726264842414337323134343126201Brownsville C80/AGP180
Harlingen Teege C1023139203139303326295546454744383541423423301Harlingen Teege C1023
AreaMonitoring SitePOCDecember 2014POCMonitoring Site
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Laredo
Laredo Vidaurri C44/AFGP144/P24412614133119402112332830343026182724617241Laredo 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.