1. TCEQ AMBIENT Air Monitors in Corpus christi
Texas Commission on Environmental Quality
Julie Eldredge, Ambient Monitoring Section Manager

2. Outline
Overview of TCEQ Air Monitors in Corpus Christi
Specific Site Information
Data Use and Access

3. Overview of TCEQ air monitors in corpus christi
TCEQ operates eight sites in Corpus Christi
The majority of monitoring sites are strategically sited downwind of industrial sources along the Nueces Bay.

4. Overview of TCEQ Air Monitors in corpus Christi

5. Overview of TCEQ air monitors in corpus christi
Five sites monitoring O3, SO2, PM2.5 (including PM2.5 mass and particulate speciation), and PM10 are used to evaluate compliance with the National Ambient Air Quality Standards (NAAQS).
In addition, state initiative monitoring sites monitor speciated volatile organic compounds (VOCs) by canister and automated gas chromatography and H2S.

6. Overview of TCEQ air monitors in corpus christi
Meteorological data, such as wind, temperature, relative humidity, and solar radiation, are also monitored to help inform and characterize monitoring results at a site.

7. Overview of tceq air monitors in corpus christi
Monitoring networks are implemented based on federal regulations found in 40 CFR Part 58.
These regulations outline the rules and requirements for monitoring criteria pollutants, including quality assurance, monitoring methodology, and siting requirements. 

8. Overview of tceq air monitors in corpus christi
Per the 2017 TCEQ Annual Monitoring Network Plan, the table below shows the number of current monitors and the monitoring requirements, based on population (454,726), for the Corpus Christi Metropolitan Statistical Area :
NO/NO2/NOx/NOy
SO2 Pb
Required
Current 3 O3 CO
PM10 2
0 - 1 1
PM2.5 4
TCEQ is meeting or exceeding monitoring requirements

9. Specific Site information
National Seashore
Located: Park Road, Corpus Christi
Deployed: December
Monitors: PM2.5 (gravimetric)
Provides information about background PM2.5 levels coming into Corpus Christi off the Gulf of Mexico. The site measures PM2.5, gravimetric, continuous. Met is wind and temperature
Met monitored is wind and temperature

10. Specific site information
Corpus Christi West
Located: Airport Blvd, Corpus Christi
Deployed: March 1998
Monitors: O3 and SO2
Monitors ozone and sulfur dioxide (both continuous). Met is temperature, solar radiation, and wind.

11. Specific site information
Corpus Christi Tuloso
Located: La Branch, Corpus Christi
Deployed: Between July and October 1987
Monitors: O3 and SO2
Monitors ozone and sulfur dioxide (both continuous). Met is Wind and Temperature

12. Specific site information
Corpus Christi Huisache
Located: Huisache Street, Corpus Christi
Deployed: Between August and January 2000
Monitors: PM2.5 (gravimetric), SO2, Speciated VOCs, and H2S
Monitors PM2.5 (gravimetric), SO2, Speciated VOCs, and H2S. Speciated VOCs and H2S are state initiative monitors.
PM2.5 (gravimetric, 24 hours; 1/3 days). Collocated is collected on 1/6 days. 24 hour sampling is collected 24 +/- 1 hour.
SO2 (continuous).
Speciated VOC (canister); collected 24 hours; 1/6 days.
H2S; continuous.
Met is Wind and Temperature

13. Specific site information
Dona Park
Located: Up River Road, Corpus Christi
Deployed: Between January and June 2013
Monitors: PM2.5 (gravimetric and speciation), PM10 (gravimetric), Speciated VOCs
Monitors PM2.5 (speciation and gravimetric), PM10, and Speciated VOCs. Speciated VOCs is state initiative monitor.
PM2.5 gravimetric, 24 hours; 1/6 days and continuous. Speciation is collected 24 hours; 1/6 days. Continuous PM2.5 monitor that allows the 1/6 day frequency.
PM10 is gravimetric, 24 hours; 1/6 days.
Speciated VOC (canister); collected 24 hours; 1/6 days.
Met is wind and temperature

14. Specific site information
Corpus Christi Hillcrest
Located: Nueces Bay Boulevard, Corpus Christi
Deployed: November 1998
Monitors: Speciated VOCs
Monitors Speciated VOCs. State initiative monitors.
Speciated VOC (canister); collected 24 hours; 1/6 days.
Met is temperature and wind

15. Specific site information
Corpus Christi Palm
Located: Palm Drive, Corpus Christi
Deployed: June 2010
Monitors: Speciated VOCs and total non-methane organic compounds (TNMOC)
Monitors Speciated VOCs and TNMOC. State initiative monitors.
Speciated VOC and TNMOC (autoGC); continuous
Met is Wind, Relative Humidity and Temperature

16. Specific site information
Williams Park
Located: Dempsey Road, Corpus Christi
Deployed: August 2005
Monitors: Speciated VOCs and TNMOC
Monitors Speciated VOCs and TNMOC. State initiative monitors.
TNMOC ; continuous. If TNMOC data reaches a certain threshold, the speciated VOC canister is triggered.
Speciated VOC (canister); 1 hour, episodic
Met is temperature and wind

17. Data USE and Access
Ambient air monitoring data has multiple uses, including:
Determining compliance with the NAAQS;
Evaluating measured concentrations for their potential to cause health effects and odors;
Evaluating air permit applications;
Assessing the behavior and nature of air pollution; and
Forecasting concentrations of certain pollutants, such as ozone or particulate matter

18. Data USE and Access
Data is validated and uploaded to the Texas Air Monitoring Information System (TAMIS) database.
Data from federally funded monitors are also uploaded to the EPA Air Quality System (AQS) database.

19. Data USE and Access
Data can be accessed by the public using the following link: n=home.welcome
Continuous data can be accessed in near real-time.
Non-continuous data is available approximately three – four months after the end of the quarter.

20. QUESTIONS?

21. Contact Information
Julie Eldredge
Ambient Monitoring Section Manager
Texas Commission on Environmental Quality
Office: (512)