Four Highest Eight-Hour Ozone Concentrations in 2012 - Texas Commission on Environmental Quality

Four Highest Eight-Hour Ozone Concentrations in 2012
as of February 9

The table below lists the four highest daily maximum eight-hour ozone concentrations measured in 2012 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.) The fourth-highest average is in bold black (unless it is highlighted). All ozone measurements are in parts per billion. Times are shown in 24-hour format and correspond to the beginning of the eight hour average.

Use the selection boxes below to customize this report. You may select a different year or a different report format. If you want to cut and paste data from this web page into another application, such as a spreadsheet, select the comma-delimited format. Click on the Generate Report button once you have made your selections.

Year	Report Format

Highlight with AQI colors

Area	Monitoring Site	POC	Highest	Second Highest	Third Highest	Fourth Highest
Date	Time	Value	Date	Time	Value	Date	Time	Value	Date	Time	Value
Dallas-Fort Worth
	Ft. Worth Northwest C13/AH302	2	01/30/2012	1100	37	01/15/2012	1100	36	01/22/2012	1200	33	01/12/2012	0900	32
	Keller C17	2	01/15/2012	1200	43	01/30/2012	1100	42	02/01/2012	1200	37	01/14/2012	1000	37
	Frisco C31/C680	1	01/15/2012	1200	46	01/30/2012	1200	42	01/31/2012	1200	37	01/27/2012	1100	36
	Midlothian OFW C52/A137	1	01/30/2012	1100	42	01/15/2012	1100	42	01/27/2012	1200	41	01/06/2012	1200	39
	Denton Airport South C56/A163/X157	1	01/15/2012	1200	41	01/30/2012	1200	40	01/31/2012	1000	34	01/27/2012	1200	34
	Arlington Municipal Airport C61	1	01/15/2012	1200	43	01/30/2012	1100	42	01/27/2012	1200	38	01/22/2012	1200	37
	Dallas North No.2 C63/C679	1	01/15/2012	1100	45	01/30/2012	1200	44	01/27/2012	1100	39	01/06/2012	1100	38
	Rockwall Heath C69	1	01/15/2012	1200	46	01/30/2012	1100	43	01/06/2012	1200	41	01/31/2012	1100	38
	Grapevine Fairway C70/A301/X182	1	01/15/2012	1100	41	01/30/2012	1300	38	01/27/2012	1200	36	01/31/2012	1000	35
	Kaufman C71/A304/X071	1	01/15/2012	1100	44	01/30/2012	1200	43	01/27/2012	1300	42	01/06/2012	1200	42
	Granbury C73/C681	1	01/30/2012	1000	44	01/22/2012	1200	40	02/01/2012	1100	39	01/15/2012	1100	39
	Eagle Mountain Lake C75	1	01/30/2012	1000	40	01/15/2012	1200	40	01/20/2012	1000	38	02/01/2012	1100	36
	Parker County C76	1	01/30/2012	1000	47	01/06/2012	1200	43	02/01/2012	1200	42	01/20/2012	1000	42
	Cleburne Airport C77/C682	1	01/30/2012	1100	40	01/15/2012	1100	40	02/01/2012	1100	37	01/27/2012	1200	37
	Dallas Hinton St. C401/C60/AH161	3	01/15/2012	1100	43	01/22/2012	1200	34	01/06/2012	1300	33	01/20/2012	1100	32
	Dallas Executive Airport C402	1	01/15/2012	1000	43	01/30/2012	1000	41	01/27/2012	1100	37	01/06/2012	1200	37
	Greenville C1006/A198	1	01/15/2012	1100	44	01/30/2012	1100	43	01/06/2012	1200	41	01/27/2012	1100	39
	Pilot Point C1032	1	01/15/2012	1100	43	01/30/2012	1300	41	01/31/2012	1000	37	01/20/2012	1100	37
	Italy C1044/A323	1	01/15/2012	1100	44	01/30/2012	1000	42	01/27/2012	1300	42	01/06/2012	1200	41
	Corsicana Airport C1051	1	01/15/2012	1000	44	01/30/2012	1000	43	01/06/2012	1100	43	01/27/2012	1200	42
Tyler-Longview-Marshall
	Longview C19/A127/C644	2	01/15/2012	1000	46	01/30/2012	1100	45	01/04/2012	1000	42	01/27/2012	1100	39
	Tyler Airport Relocated C82	1	01/30/2012	1100	48	01/15/2012	1200	48	01/06/2012	1100	44	01/05/2012	1400	44
	Karnack C85/AFHP303	1	01/30/2012	1100	47	01/15/2012	1100	47	01/04/2012	1000	40	01/27/2012	1100	38
El Paso-Juarez
	El Paso UTEP C12/A125/X151	2	02/03/2012	1100	45	01/22/2012	0800	40	02/05/2012	1000	39	02/01/2012	1100	39
	Ascarate Park SE C37/A332/A172/X159	1	02/05/2012	1000	39	02/03/2012	1100	39	02/01/2012	1000	39	01/22/2012	0700	39
	Chamizal C41/AH126	1	01/22/2012	0800	38	02/01/2012	1000	35	01/21/2012	2000	33	01/08/2012	1200	33
	Socorro C49/F312	1	02/03/2012	1000	42	01/22/2012	0900	38	02/05/2012	1000	37	02/07/2012	1000	36
	Skyline Park C72	1	02/03/2012	1000	49	02/02/2012	2100	46	02/01/2012	1000	41	01/22/2012	1100	41
	BRAVO Big Bend C67/C316/C656/C691	3 ^N	02/02/2012	1000	49	01/22/2012	1200	47	01/29/2012	1200	44	01/23/2012	1000	44
	Ivanhoe C414	1	02/03/2012	1000	37	02/05/2012	1400	36	02/02/2012	2000	36	01/22/2012	0800	36
	Cd Juarez Advance C661	1 ^N	01/21/2012	1900	32	01/29/2012	1000	30	01/22/2012	0100	30	01/01/2012	0800	28
	Cd Juarez 20-30 Club C662	1 ^N	02/03/2012	0900	37	01/22/2012	0700	34	01/21/2012	2000	33	02/02/2012	2200	29
	Cd Juarez Delphi C663	1 ^N	02/03/2012	0900	39	01/22/2012	0700	38	02/05/2012	0900	36	01/21/2012	2100	36
Waco
	Waco Mazanec C1037	1	01/27/2012	1200	44	01/15/2012	1100	43	01/06/2012	1200	42	01/31/2012	1200	40
	Killeen Skylark Field C1047	1	01/27/2012	1200	46	01/15/2012	1000	43	01/22/2012	1300	42	01/06/2012	1000	42
Beaumont-Port Arthur
	Beaumont-Downtown C2/A112/C2002	2	01/15/2012	1400	48	01/14/2012	1000	47	01/04/2012	1000	42	01/11/2012	1100	41
	West Orange C9/A141	2	01/15/2012	1200	47	01/14/2012	1100	45	01/27/2012	1100	42	01/11/2012	1200	42
	Port Arthur West C28/A128/A228	1	01/01/2012	1100	43	01/14/2012	1100	41	01/27/2012	1100	39	01/15/2012	1100	37
	Hamshire C64/C654	1	01/14/2012	1100	50	01/15/2012	1100	49	02/08/2012	1100	43	01/11/2012	1100	43
	SETRPC Port Arthur C628	1 ^N	02/08/2012	1000	50	01/31/2012	1200	49	01/27/2012	1000	49	01/15/2012	1300	47
	SETRPC 40 Sabine Pass C640/C1654	1	01/15/2012	1100	49	01/14/2012	1200	47	01/31/2012	1200	44	01/05/2012	1100	44
	SETRPC Mauriceville 42 C642/C311/C665	1 ^N	01/14/2012	1100	48	01/15/2012	1100	47	01/11/2012	1200	41	01/31/2012	1300	40
	SETRPC 43 Jefferson Co Airport C643	1	01/15/2012	1200	45	01/14/2012	1100	44	01/11/2012	1200	41	01/27/2012	1100	40
	Nederland High School C1035	1	01/15/2012	1200	44	01/14/2012	1100	44	01/27/2012	1000	39	01/11/2012	1200	39
Austin
	Austin Northwest C3/A322	2	01/27/2012	1100	44	01/15/2012	1000	40	01/06/2012	1000	40	01/19/2012	1000	39
	Audubon C38	1	01/27/2012	1200	49	01/15/2012	1000	45	01/19/2012	1200	43	01/14/2012	1000	42
Houston-Galveston-Brazoria
	Houston East C1/G316	2	01/29/2012	1000	39	01/27/2012	1000	38	01/11/2012	1200	38	01/15/2012	1100	37
	Houston Aldine C8/AF108/X150	2	01/29/2012	1000	42	01/14/2012	1000	39	01/15/2012	1000	37	01/11/2012	1100	37
	Channelview C15/AH115	3	01/07/2012	1000	43	02/08/2012	1300	39	01/02/2012	1000	39	01/29/2012	0900	37
	Northwest Harris Co. C26/A110/X154	2	01/15/2012	1200	44	01/14/2012	1000	43	01/11/2012	1200	42	01/29/2012	1000	41
	Hou.DeerPrk2 C35/235/1001/AFH139FP239	1	01/03/2012	1000	41	01/27/2012	1000	39	01/14/2012	1000	38	01/30/2012	1100	37
	Seabrook Friendship Park C45	1	01/14/2012	1000	43	01/03/2012	1000	43	01/27/2012	1100	42	01/29/2012	1400	41
	Houston Bayland Park C53/A146	1	01/15/2012	1100	41	01/14/2012	1000	40	01/27/2012	1000	39	01/30/2012	1100	38
	Conroe Relocated C78/A321	1	01/15/2012	1100	45	01/30/2012	1000	40	01/29/2012	1200	40	01/27/2012	1000	40
	Houston Regional Office C81	1	01/29/2012	1000	40	01/27/2012	1100	38	01/15/2012	1100	38	01/14/2012	1000	37
	Manvel Croix Park C84	1	01/14/2012	1000	47	01/15/2012	1000	44	01/11/2012	1100	44	01/03/2012	0900	43
	Clinton C403/C304/AH113	3	01/15/2012	1100	38	02/08/2012	1000	37	01/29/2012	1000	35	01/03/2012	1000	35
	Houston North Wayside C405	1	01/29/2012	1000	41	01/15/2012	1100	37	01/27/2012	1000	36	01/03/2012	1000	35
	Houston Monroe C406	1	01/15/2012	1000	41	01/11/2012	1100	40	01/14/2012	1000	39	01/03/2012	0900	39
	Lang C408	2	01/14/2012	1000	40	01/15/2012	1100	39	01/11/2012	1000	37	01/29/2012	1000	36
	Houston Croquet C409	2	01/14/2012	1000	43	01/15/2012	1000	42	01/11/2012	1200	41	01/27/2012	1000	40
	Houston Westhollow C410	1	01/14/2012	1000	45	01/15/2012	1100	43	01/11/2012	1100	42	01/29/2012	1100	41
	Houston Texas Avenue C411	1	01/15/2012	1000	41	01/29/2012	1000	37	01/27/2012	1100	34	02/08/2012	1000	32
	Park Place C416	1	01/15/2012	1100	41	01/03/2012	1000	38	01/29/2012	1000	37	01/14/2012	1000	37
	Sheldon C551	1 ^N	02/08/2012	1300	40	01/29/2012	1000	39	01/28/2012	1200	37	01/15/2012	1100	37
	Baytown Wetlands Center C552	1 ^N	01/27/2012	1000	41	01/15/2012	1000	40	01/14/2012	1000	40	01/03/2012	1000	40
	Crosby Library C553	1 ^N	01/27/2012	1100	42	01/15/2012	1100	42	01/30/2012	1100	40	01/29/2012	1000	39
	West Houston C554	1 ^N	01/11/2012	1200	42	01/29/2012	1000	41	01/15/2012	1100	41	01/14/2012	1000	40
	La Porte Sylvan Beach C556	1 ^N	01/27/2012	1100	40	01/03/2012	1000	40	01/29/2012	1500	39	01/14/2012	1100	37
	Mercer Arboretum C557	1 ^N	01/29/2012	1000	40	01/14/2012	1000	40	01/15/2012	1100	39	02/08/2012	1100	38
	Tom Bass C558	1 ^N	01/15/2012	1100	44	01/27/2012	1100	42	01/11/2012	1200	42	01/14/2012	1000	41
	Katy Park C559	1 ^N	01/14/2012	0900	40	01/15/2012	1000	39	01/29/2012	1000	38	01/11/2012	1100	38
	Atascocita C560	1 ^N	01/15/2012	1000	40	01/14/2012	1100	40	01/30/2012	1100	39	01/29/2012	1000	39
	Meyer Park C561	1 ^N	01/15/2012	1200	42	01/14/2012	1000	42	01/11/2012	1200	39	01/29/2012	1000	38
	Bunker Hill Village C562	1 ^N	01/14/2012	1000	43	01/15/2012	1100	42	01/29/2012	1000	40	01/27/2012	1100	40
	Huffman Wolf Road C563	1 ^N	01/15/2012	1100	44	01/27/2012	1000	43	01/30/2012	1100	41	01/29/2012	1000	41
	Clear Brook High School C570	1 ^N	01/14/2012	1000	50	01/15/2012	1000	49	01/27/2012	1100	47	01/03/2012	1000	44
	Clear Creek High School C571	1 ^N	01/14/2012	1000	50	01/03/2012	1000	49	01/15/2012	1000	48	01/27/2012	1000	46
	Clear Lake High School C572	1 ^N	01/03/2012	1000	49	01/14/2012	1000	47	01/27/2012	1100	44	01/30/2012	1200	43
	HRM-3 Haden Road C603/A114	1 ^N	01/14/2012	1000	35	01/07/2012	1000	34	01/03/2012	1000	33	01/15/2012	1000	32
	Wallisville Road C617	1 ^N	01/15/2012	1100	45	01/27/2012	1000	43	02/08/2012	1100	41	01/29/2012	1000	41
	Danciger C618	1 ^N	01/27/2012	1100	49	01/14/2012	1000	46	01/11/2012	1300	46	01/15/2012	1100	44
	Mustang Bayou C619	1 ^N	01/14/2012	1000	49	01/15/2012	1000	48	01/03/2012	1100	48	01/27/2012	1000	45
	Texas City 34th St. C620	1 ^N	01/14/2012	1000	50	01/27/2012	1100	47	01/03/2012	1000	47	01/15/2012	1000	46
	UH Moody Tower C695	1 ^N	01/15/2012	1100	49	01/14/2012	1100	49	01/27/2012	1100	45	01/11/2012	1200	45
	U of H-Sugarland C696	1 ^N	01/27/2012	1100	47	01/14/2012	1200	46	01/30/2012	1100	43	01/15/2012	1000	43
	UH Coastal Center C697	1 ^N	01/14/2012	1000	49	01/15/2012	1000	48	01/27/2012	1100	46	01/03/2012	1000	43
	UH WG Jones Forest C698	1 ^N	01/14/2012	1100	47	01/15/2012	1100	44	01/11/2012	1300	44	01/04/2012	1100	44
	UH West Liberty C699	1 ^N	01/15/2012	1100	42	01/27/2012	1100	41	01/29/2012	1000	40	01/14/2012	1000	40
	Lynchburg Ferry C1015/A165	1	01/27/2012	1000	38	01/30/2012	1100	37	01/03/2012	1000	37	01/29/2012	1000	36
	Lake Jackson C1016	1	01/14/2012	1000	46	01/11/2012	1200	45	01/27/2012	1000	44	01/15/2012	1000	44
	Galveston 99th St. C1034/A320/X183	1	01/14/2012	1200	46	01/27/2012	1500	45	01/11/2012	1400	44	01/29/2012	1700	42
San Antonio
	San Antonio Northwest C23	2	01/27/2012	1000	43	01/14/2012	1000	42	01/29/2012	1100	41	01/06/2012	1000	40
	Camp Bullis C58	1	01/14/2012	1000	38	01/06/2012	1000	38	01/10/2012	1000	35	01/04/2012	1100	35
	Calaveras Lake C59	1	01/27/2012	1100	44	01/04/2012	1100	43	01/29/2012	1100	41	01/14/2012	1100	41
	Heritage Middle School C622	1 ^N	01/27/2012	1100	47	01/14/2012	1200	44	01/29/2012	1200	43	01/04/2012	1100	42
	CPS Pecan Valley C678	1 ^N	01/27/2012	1000	39	01/29/2012	1100	36	01/14/2012	1000	34	01/19/2012	1000	33
Corpus Christi-Victoria
	Corpus Christi West C4	2	01/27/2012	1100	48	01/11/2012	1100	44	01/03/2012	1000	44	01/29/2012	1200	43
	Corpus Christi Tuloso C21	1	01/27/2012	1000	45	01/29/2012	1200	42	01/14/2012	1100	42	01/11/2012	1100	41
	Victoria C87	1	01/27/2012	1000	41	01/14/2012	1000	41	01/29/2012	1100	40	01/11/2012	1200	40
	Aransas Pass C659	1 ^N	01/27/2012	1100	49	01/14/2012	1200	49	01/11/2012	1100	49	01/03/2012	1100	48
	Holly Road C660	1 ^N	01/11/2012	1100	48	01/27/2012	1100	47	01/03/2012	1100	42	01/29/2012	1200	41
	Violet C664	1 ^N	01/14/2012	1000	46	01/27/2012	1000	45	01/29/2012	1200	43	01/11/2012	1000	42
	Ingleside C685	1 ^N	01/27/2012	1200	44	01/03/2012	1000	44	01/30/2012	0900	42	01/11/2012	1100	42
	Odem C686	1 ^N	01/14/2012	1100	43	01/29/2012	1200	41	01/27/2012	1000	41	01/03/2012	1100	41
	Taft C687	1 ^N	01/27/2012	1000	46	01/03/2012	1100	46	01/14/2012	1000	45	01/11/2012	1100	44
Lower Rio Grande Valley
	Mission C43/AP143	1	01/28/2012	1600	44	01/14/2012	1100	39	01/07/2012	1100	37	01/27/2012	1100	36
	Brownsville C80/AGP180	1	01/28/2012	1100	48	01/27/2012	1000	45	01/29/2012	1200	43	01/14/2012	1000	42
	Mercedes C1048/A310	1	01/28/2012	1300	42	01/27/2012	1100	40	01/03/2012	1100	37	01/14/2012	1100	36
POC (Parameter Occurrence Code): a code used to correctly separate data from multiple instruments at one site.
^N - Data from this instrument does not meet EPA quality assurance criteria and cannot be used for regulatory purposes.

Area

Monitoring Site

POC

Highest

Second Highest

Third Highest

Fourth Highest

Date

Time

Value

Date

Time

Value

Date

Time

Value

Date

Time

Value

Dallas-Fort Worth

Ft. Worth Northwest C13/AH302

01/30/2012

1100

01/15/2012

1100

01/22/2012

1200

01/12/2012

0900

Keller C17

01/15/2012

1200

01/30/2012

1100

02/01/2012

1200

01/14/2012

1000

Frisco C31/C680

01/15/2012

1200

01/30/2012

1200

01/31/2012

1200

01/27/2012

1100

Midlothian OFW C52/A137

01/30/2012

1100

01/15/2012

1100

01/27/2012

1200

01/06/2012

1200

Denton Airport South C56/A163/X157

01/15/2012

1200

01/30/2012

1200

01/31/2012

1000

01/27/2012

1200

Arlington Municipal Airport C61

01/15/2012

1200

01/30/2012

1100

01/27/2012

1200

01/22/2012

1200

Dallas North No.2 C63/C679

01/15/2012

1100

01/30/2012

1200

01/27/2012

1100

01/06/2012

1100

Rockwall Heath C69

01/15/2012

1200

01/30/2012

1100

01/06/2012

1200

01/31/2012

1100

Grapevine Fairway C70/A301/X182

01/15/2012

1100

01/30/2012

1300

01/27/2012

1200

01/31/2012

1000

Kaufman C71/A304/X071

01/15/2012

1100

01/30/2012

1200

01/27/2012

1300

01/06/2012

1200

Granbury C73/C681

01/30/2012

1000

01/22/2012

1200

02/01/2012

1100

01/15/2012

1100

Eagle Mountain Lake C75

01/30/2012

1000

01/15/2012

1200

01/20/2012

1000

02/01/2012

1100

Parker County C76

01/30/2012

1000

01/06/2012

1200

02/01/2012

1200

01/20/2012

1000

Cleburne Airport C77/C682

01/30/2012

1100

01/15/2012

1100

02/01/2012

1100

01/27/2012

1200

Dallas Hinton St. C401/C60/AH161

01/15/2012

1100

01/22/2012

1200

01/06/2012

1300

01/20/2012

1100

Dallas Executive Airport C402

01/15/2012

1000

01/30/2012

1000

01/27/2012

1100

01/06/2012

1200

Greenville C1006/A198

01/15/2012

1100

01/30/2012

1100

01/06/2012

1200

01/27/2012

1100

Pilot Point C1032

01/15/2012

1100

01/30/2012

1300

01/31/2012

1000

01/20/2012

1100

Italy C1044/A323

01/15/2012

1100

01/30/2012

1000

01/27/2012

1300

01/06/2012

1200

Corsicana Airport C1051

01/15/2012

1000

01/30/2012

1000

01/06/2012

1100

01/27/2012

1200

Tyler-Longview-Marshall

Longview C19/A127/C644

01/15/2012

1000

01/30/2012

1100

01/04/2012

1000

01/27/2012

1100

Tyler Airport Relocated C82

01/30/2012

1100

01/15/2012

1200

01/06/2012

1100

01/05/2012

1400

Karnack C85/AFHP303

01/30/2012

1100

01/15/2012

1100

01/04/2012

1000

01/27/2012

1100

El Paso-Juarez

El Paso UTEP C12/A125/X151

02/03/2012

1100

01/22/2012

0800

02/05/2012

1000

02/01/2012

1100

Ascarate Park SE C37/A332/A172/X159

02/05/2012

1000

02/03/2012

1100

02/01/2012

1000

01/22/2012

0700

Chamizal C41/AH126

01/22/2012

0800

02/01/2012

1000

01/21/2012

2000

01/08/2012

1200

Socorro C49/F312

02/03/2012

1000

01/22/2012

0900

02/05/2012

1000

02/07/2012

1000

Skyline Park C72

02/03/2012

1000

02/02/2012

2100

02/01/2012

1000

01/22/2012

1100

BRAVO Big Bend C67/C316/C656/C691

3 ^N

02/02/2012

1000

01/22/2012

1200

01/29/2012

1200

01/23/2012

1000

Ivanhoe C414

02/03/2012

1000

02/05/2012

1400

02/02/2012

2000

01/22/2012

0800

Cd Juarez Advance C661

1 ^N

01/21/2012

1900

01/29/2012

1000

01/22/2012

0100

01/01/2012

0800

Cd Juarez 20-30 Club C662

1 ^N

02/03/2012

0900

01/22/2012

0700

01/21/2012

2000

02/02/2012

2200

Cd Juarez Delphi C663

1 ^N

02/03/2012

0900

01/22/2012

0700

02/05/2012

0900

01/21/2012

2100

Waco

Waco Mazanec C1037

01/27/2012

1200

01/15/2012

1100

01/06/2012

1200

01/31/2012

1200

Killeen Skylark Field C1047

01/27/2012

1200

01/15/2012

1000

01/22/2012

1300

01/06/2012

1000

Beaumont-Port Arthur

Beaumont-Downtown C2/A112/C2002

01/15/2012

1400

01/14/2012

1000

01/04/2012

1000

01/11/2012

1100

West Orange C9/A141

01/15/2012

1200

01/14/2012

1100

01/27/2012

1100

01/11/2012

1200

Port Arthur West C28/A128/A228

01/01/2012

1100

01/14/2012

1100

01/27/2012

1100

01/15/2012

1100

Hamshire C64/C654

01/14/2012

1100

01/15/2012

1100

02/08/2012

1100

01/11/2012

1100

SETRPC Port Arthur C628

1 ^N

02/08/2012

1000

01/31/2012

1200

01/27/2012

1000

01/15/2012

1300

SETRPC 40 Sabine Pass C640/C1654

01/15/2012

1100

01/14/2012

1200

01/31/2012

1200

01/05/2012

1100

SETRPC Mauriceville 42 C642/C311/C665

1 ^N

01/14/2012

1100

01/15/2012

1100

01/11/2012

1200

01/31/2012

1300

SETRPC 43 Jefferson Co Airport C643

01/15/2012

1200

01/14/2012

1100

01/11/2012

1200

01/27/2012

1100

Nederland High School C1035

01/15/2012

1200

01/14/2012

1100

01/27/2012

1000

01/11/2012

1200

Austin

Austin Northwest C3/A322

01/27/2012

1100

01/15/2012

1000

01/06/2012

1000

01/19/2012

1000

Audubon C38

01/27/2012

1200

01/15/2012

1000

01/19/2012

1200

01/14/2012

1000

Houston-Galveston-Brazoria

Houston East C1/G316

01/29/2012

1000

01/27/2012

1000

01/11/2012

1200

01/15/2012

1100

Houston Aldine C8/AF108/X150

01/29/2012

1000

01/14/2012

1000

01/15/2012

1000

01/11/2012

1100

Channelview C15/AH115

01/07/2012

1000

02/08/2012

1300

01/02/2012

1000

01/29/2012

0900

Northwest Harris Co. C26/A110/X154

01/15/2012

1200

01/14/2012

1000

01/11/2012

1200

01/29/2012

1000

Hou.DeerPrk2 C35/235/1001/AFH139FP239

01/03/2012

1000

01/27/2012

1000

01/14/2012

1000

01/30/2012

1100

Seabrook Friendship Park C45

01/14/2012

1000

01/03/2012

1000

01/27/2012

1100

01/29/2012

1400

Houston Bayland Park C53/A146

01/15/2012

1100

01/14/2012

1000

01/27/2012

1000

01/30/2012

1100

Conroe Relocated C78/A321

01/15/2012

1100

01/30/2012

1000

01/29/2012

1200

01/27/2012

1000

Houston Regional Office C81

01/29/2012

1000

01/27/2012

1100

01/15/2012

1100

01/14/2012

1000

Manvel Croix Park C84

01/14/2012

1000

01/15/2012

1000

01/11/2012

1100

01/03/2012

0900

Clinton C403/C304/AH113

01/15/2012

1100

02/08/2012

1000

01/29/2012

1000

01/03/2012

1000

Houston North Wayside C405

01/29/2012

1000

01/15/2012

1100

01/27/2012

1000

01/03/2012

1000

Houston Monroe C406

01/15/2012

1000

01/11/2012

1100

01/14/2012

1000

01/03/2012

0900

Lang C408

01/14/2012

1000

01/15/2012

1100

01/11/2012

1000

01/29/2012

1000

Houston Croquet C409

01/14/2012

1000

01/15/2012

1000

01/11/2012

1200

01/27/2012

1000

Houston Westhollow C410

01/14/2012

1000

01/15/2012

1100

01/11/2012

1100

01/29/2012

1100

Houston Texas Avenue C411

01/15/2012

1000

01/29/2012

1000

01/27/2012

1100

02/08/2012

1000

Park Place C416

01/15/2012

1100

01/03/2012

1000

01/29/2012

1000

01/14/2012

1000

Sheldon C551

1 ^N

02/08/2012

1300

01/29/2012

1000

01/28/2012

1200

01/15/2012

1100

Baytown Wetlands Center C552

1 ^N

01/27/2012

1000

01/15/2012

1000

01/14/2012

1000

01/03/2012

1000

Crosby Library C553

1 ^N

01/27/2012

1100

01/15/2012

1100

01/30/2012

1100

01/29/2012

1000

West Houston C554

1 ^N

01/11/2012

1200

01/29/2012

1000

01/15/2012

1100

01/14/2012

1000

La Porte Sylvan Beach C556

1 ^N

01/27/2012

1100

01/03/2012

1000

01/29/2012

1500

01/14/2012

1100

Mercer Arboretum C557

1 ^N

01/29/2012

1000

01/14/2012

1000

01/15/2012

1100

02/08/2012

1100

Tom Bass C558

1 ^N

01/15/2012

1100

01/27/2012

1100

01/11/2012

1200

01/14/2012

1000

Katy Park C559

1 ^N

01/14/2012

0900

01/15/2012

1000

01/29/2012

1000

01/11/2012

1100

Atascocita C560

1 ^N

01/15/2012

1000

01/14/2012

1100

01/30/2012

1100

01/29/2012

1000

Meyer Park C561

1 ^N

01/15/2012

1200

01/14/2012

1000

01/11/2012

1200

01/29/2012

1000

Bunker Hill Village C562

1 ^N

01/14/2012

1000

01/15/2012

1100

01/29/2012

1000

01/27/2012

1100

Huffman Wolf Road C563

1 ^N

01/15/2012

1100

01/27/2012

1000

01/30/2012

1100

01/29/2012

1000

Clear Brook High School C570

1 ^N

01/14/2012

1000

01/15/2012

1000

01/27/2012

1100

01/03/2012

1000

Clear Creek High School C571

1 ^N

01/14/2012

1000

01/03/2012

1000

01/15/2012

1000

01/27/2012

1000

Clear Lake High School C572

1 ^N

01/03/2012

1000

01/14/2012

1000

01/27/2012

1100

01/30/2012

1200

HRM-3 Haden Road C603/A114

1 ^N

01/14/2012

1000

01/07/2012

1000

01/03/2012

1000

01/15/2012

1000

Wallisville Road C617

1 ^N

01/15/2012

1100

01/27/2012

1000

02/08/2012

1100

01/29/2012

1000

Danciger C618

1 ^N

01/27/2012

1100

01/14/2012

1000

01/11/2012

1300

01/15/2012

1100

Mustang Bayou C619

1 ^N

01/14/2012

1000

01/15/2012

1000

01/03/2012

1100

01/27/2012

1000

Texas City 34th St. C620

1 ^N

01/14/2012

1000

01/27/2012

1100

01/03/2012

1000

01/15/2012

1000

UH Moody Tower C695

1 ^N

01/15/2012

1100

01/14/2012

1100

01/27/2012

1100

01/11/2012

1200

U of H-Sugarland C696

1 ^N

01/27/2012

1100

01/14/2012

1200

01/30/2012

1100

01/15/2012

1000

UH Coastal Center C697

1 ^N

01/14/2012

1000

01/15/2012

1000

01/27/2012

1100

01/03/2012

1000

UH WG Jones Forest C698

1 ^N

01/14/2012

1100

01/15/2012

1100

01/11/2012

1300

01/04/2012

1100

UH West Liberty C699

1 ^N

01/15/2012

1100

01/27/2012

1100

01/29/2012

1000

01/14/2012

1000

Lynchburg Ferry C1015/A165

01/27/2012

1000

01/30/2012

1100

01/03/2012

1000

01/29/2012

1000

Lake Jackson C1016

01/14/2012

1000

01/11/2012

1200

01/27/2012

1000

01/15/2012

1000

Galveston 99th St. C1034/A320/X183

01/14/2012

1200

01/27/2012

1500

01/11/2012

1400

01/29/2012

1700

San Antonio

San Antonio Northwest C23

01/27/2012

1000

01/14/2012

1000

01/29/2012

1100

01/06/2012

1000

Camp Bullis C58

01/14/2012

1000

01/06/2012

1000

01/10/2012

1000

01/04/2012

1100

Calaveras Lake C59

01/27/2012

1100

01/04/2012

1100

01/29/2012

1100

01/14/2012

1100

Heritage Middle School C622

1 ^N

01/27/2012

1100

01/14/2012

1200

01/29/2012

1200

01/04/2012

1100

CPS Pecan Valley C678

1 ^N

01/27/2012

1000

01/29/2012

1100

01/14/2012

1000

01/19/2012

1000

Corpus Christi-Victoria

Corpus Christi West C4

01/27/2012

1100

01/11/2012

1100

01/03/2012

1000

01/29/2012

1200

Corpus Christi Tuloso C21

01/27/2012

1000

01/29/2012

1200

01/14/2012

1100

01/11/2012

1100

Victoria C87

01/27/2012

1000

01/14/2012

1000

01/29/2012

1100

01/11/2012

1200

Aransas Pass C659

1 ^N

01/27/2012

1100

01/14/2012

1200

01/11/2012

1100

01/03/2012

1100

Holly Road C660

1 ^N

01/11/2012

1100

01/27/2012

1100

01/03/2012

1100

01/29/2012

1200

Violet C664

1 ^N

01/14/2012

1000

01/27/2012

1000

01/29/2012

1200

01/11/2012

1000

Ingleside C685

1 ^N

01/27/2012

1200

01/03/2012

1000

01/30/2012

0900

01/11/2012

1100

Odem C686

1 ^N

01/14/2012

1100

01/29/2012

1200

01/27/2012

1000

01/03/2012

1100

Taft C687

1 ^N

01/27/2012

1000

01/03/2012

1100

01/14/2012

1000

01/11/2012

1100

Lower Rio Grande Valley

Mission C43/AP143

01/28/2012

1600

01/14/2012

1100

01/07/2012

1100

01/27/2012

1100

Brownsville C80/AGP180

01/28/2012

1100

01/27/2012

1000

01/29/2012

1200

01/14/2012

1000

Mercedes C1048/A310

01/28/2012

1300

01/27/2012

1100

01/03/2012

1100

01/14/2012

1100

POC (Parameter Occurrence Code): a code used to correctly separate data from multiple instruments at one site.

^N - Data from this instrument does not meet EPA quality assurance criteria and cannot be used for regulatory purposes.

Interpreting the AQI

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

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

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.