Air Monitoring
The latest forecast for air quality conditions in Texas' metropolitan areas.
Air Quality and Monitoring
Featuring the latest information regarding the Texas air monitoring network, monitoring data, and air quality forecast conditions for Texas' metropolitan areas.
Ambient Air Monitoring
Texas has one of the most robust air monitoring networks in the country consisting of over 200 monitoring stations serving over 25 million Texans statewide in areas where the presence of industry intersects with large segments of the state’s population. This network assists TCEQ in monitoring compliance with federal air quality standards, providing information in response to localized air quality concerns, evaluating air pollution trends, and studying air pollution formation and behavior. TCEQ monitoring network includes more than double the number of monitors required by federal rule, in addition to numerous state-initiative monitors.
The Federal Clean Air Act provides for establishing national ambient air quality standards (NAAQS) for six commonly occurring air pollutants, or “criteria pollutants”, that can be harmful to public health and the environment.
TCEQ monitors ambient air concentrations of these and other pollutants at stationary monitoring sites across the state. Near real-time monitoring data can be found using the links in the right and left menus.
TCEQ also maintains the Texas Air Monitoring Information System (TAMIS) that allows users to generate and download ambient air quality data collected at these monitoring stations.
- Today's Texas Air Quality Forecast
- Air Quality Index: Table of Today's Pollution Levels in Texas' Metro Areas
- Latest Texas Ozone Levels
- Latest Texas PM2.5 Levels: Soot, Dust, and Smoke in Your Metro Area
- Latest Volatile Organic Compound (VOC) monitoring stations, data, locations, and photos of monitoring sites.
The GeoTAM Dashboard presents users a geospatial way to view the current live ambient air values. These measurements are collected at ambient air monitoring sites owned by the Texas Commission on Environmental Quality (TCEQ) and hosted monitoring partners. The pollutants displayed include ozone (O3), sulfur dioxide (SO2), particulate matter of 2.5 micrometers or less in diameter (PM2.5), benzene, toluene, styrene, and 1,3-butadiene, if the pollutant is measured at the air monitoring site. Individual air monitoring sites may also collect several other pollutants.
In addition to the six criteria pollutants, TCEQ’s monitoring network also measures a variety of air toxics that include hydrogen sulfide, volatile organic compounds, metals, and carbonyls. The specific pollutants measured at each monitoring station can be identified using the GeoTAM viewer.
Placement of air monitors is determined consistent with federal air monitoring rules using population trends, reported emissions inventory data, local meteorological data, and, if available, existing air monitoring data for a given area. In addition, TCEQ may prioritize monitor placement in areas with potential air quality issues, or to address local air quality concerns. TCEQ strives to strategically balance meeting federal monitoring requirements and state and local needs with available funding and staffing resources.
Each specific monitor location must meet strict siting criteria that include minimum spacing from trees or other obstructions, free of influences from specific sources, and logistical considerations, such as available space, power, and level terrain. Final site selection is contingent on TCEQ receiving proper access authorization from property owners for properties that meet these siting criteria.
TCEQ uses a variety of measures to ensure its air monitoring data is of the utmost quality. Air monitors are assessed daily to verify their operations remain within proper specifications. TCEQ personnel physically visit each monitoring station on a weekly basis to conduct various quality control checks and preventive maintenance activities. The monitoring instruments themselves must meet rigorous sampling and analytical requirements prescribed by federal air monitoring rules and undergo daily, weekly, and quarterly quality control checks to verify the instrument’s calibration, accuracy, and precision. In addition, independently calibrated instruments are used to perform quarterly and annual audits of the air monitors and their operation.
Finally, a validation assessment is performed on all data to verify TCEQ’s data quality objectives are met. The data are reviewed for outliers, regional comparability, quality assurance/quality control requirements, and other data quality assessment indicators. Data that do not meet these objectives completely are invalidated or denoted accordingly.
TCEQ air monitoring network is designed to measure pollutant concentrations for assessing regional air quality representative of areas frequented by the public. Monitors can measure the impact on air quality from industrial sources present in an area, but do not measure the emissions from individual sources or determine a source’s compliance with permitted emission limits. Data from the ambient air monitoring network is used to determine compliance with the national ambient air quality standards (NAAQS), evaluate pollutant trends, forecast daily air quality conditions, perform air quality and human health impact studies, and inform regulatory decisions. Finally, while stationary air monitors may provide useful data during disasters or emergency events, they are not specifically intended for those purposes.
TCEQ monitors air pollution levels across the state - by Chikage Windler CBS Austin
TCEQ Air Quality Forecasting
TCEQ Ozone Action Day Forecasting
TCEQ Stationary Air Quality Monitoring
Take This Job: Testing the Air Quality in Austin | KVUE
KXAN Meteorologist Kristen Currie Interviews Cory Chism on Air
Monitoring in Texas
Kristen Currie Interviews Neal Penney on Particulate Matter
Kristen Currie Interviews Neal Penney on Air Monitoring
Instruments
Saharan Dust Q&A with TCEQ Meteorologist Weslee
Copeland
Important:
Timeline
for Near Real-time Ambient Air Quality Data: The time it takes for near real-time monitoring
data to reach our webpages. TCEQ strives to bring you the latest monitoring information data as quickly
as possible, The data that we collect is displayed in local standard time (LST) as per EPA standards.
Air Quality Forecast and Ozone Action Day Alerts (sign up to receive email or text alerts for several metropolitan areas throughout Texas)
Related Content
Modeling and Studies
For questions about the following studies, please contact the Air Quality Division.
- Air Quality Modeling: An introduction to air quality modeling, with links to data files and related research.
- Air Quality Research: Links to projects and programs designed to improve the state of air quality science and policy.
Air Pollutant Watch List and Toxicology
The APWL includes cities or counties that have elevated concentrations of air pollutants. TCEQ’s Toxicology program oversees the APWL.
Air Quality Forecast and Ozone Action Day Alerts
Sign up to receive the Today's Texas Air Quality Forecast and/or Ozone Action Day email or text alerts for several metropolitan areas throughout Texas.
- Sign up to receive Today's Texas Air Quality Forecast and/or Ozone Action Day forecasts
- Unsubscribe at any time
The Today's Texas Air Quality Forecast is based on the EPA's Air Quality Index scale for ozone, PM2.5, and PM10, made for 14 forecast regions across the state (Austin, Beaumont-Port Arthur, Brownsville-McAllen, Corpus Christi, Dallas-Fort Worth, El Paso, Houston, Laredo, Lubbock, Midland-Odessa, San Antonio, Tyler-Longview, Victoria, and Waco-Killeen). It is updated daily on normal TCEQ work days and may also be updated on weekends or holidays when air pollution levels are high. The forecast is posted on the Today's Texas Air Quality Forecast webpage and disseminated via e-mail whenever updates are made.
Each day during ozone season (roughly March through November in Texas), Ozone Action Day forecasts are made for nine participating metropolitan areas (Austin, Beaumont-Port Arthur, Corpus Christi, Dallas-Fort Worth, El Paso, Houston, San Antonio, Tyler-Longview, and Victoria). TCEQ informs the public typically a day in advance when conditions are forecast to be favorable for high ozone levels in any of the participating areas so citizens, businesses, and industry can take steps to reduce the pollutants that contribute to ozone formation. For more information on the Ozone Action Day forecast program, a list of the individual areas' official ozone season dates, and ozone in general, see Ozone: The Facts.
Auto GCs
Information about Auto GCs in the state of Texas.
TCEQ monitors near real-time volatile organic compound (VOC) concentrations using Automated Gas Chromatographs (AutoGCs). Access the VOC data, monitoring site details, maps and images. Learn how AutoGCs work and their limitations.
Information about the TCEQ's AutoGCs monitoring network in Barnett Shale area, including links to data.
AQI and Data Reports
Air quality index reports, airborne particulates, ozone, and meteorological and climatological data.
Air Quality Index (AQI)
The AQI scale is divided into the following categories:
Each National Ambient Air Quality Standards (NAAQS ) pollutant has a separate AQI scale, with an AQI rating of 100 corresponding to the concentration where health effects for each pollutant begin to affect the general public. AQI ratings below 100 indicate no appreciable health risk. Additional information about the AQI and how it can be used is available from the EPA .
The AQI for ozone is based on the either the peak eight-hour running average since midnight OR the peak one-hour measurement since midnight. The AQIs for PM-10 and PM-2.5 are based on a 24-hour average sampled from midnight to midnight. The AQI for carbon monoxide is based on the peak eight-hour running average since midnight. The AQI for sulfur dioxide is based on the either the peak one-hour measurement since midnight OR the peak 24-hour average sampled since midnight. On most days the critical pollutant is ozone. Ozone one-hour average concentrations of 125 ppb or higher exceed the old NAAQS. The new NAAQS for ozone is based on eight-hour averages; an eight-hour average of 71 ppb exceeds the new NAAQS for ozone.
Ozone Reports
Ozone: The Facts
Sound
science and targeted regulations have greatly reduced ozone concentrations in Texas cities and across
the nation.
Voluntary Steps in
Helping Prevent Ozone
These simple tips will help you save money while protecting the Texas
environment.
Texas Cities' Compliance with Eight-Hour Ozone
Standard
Report for the fourth highest daily maximum eight-hour average ozone
concentrations in Texas Metropolitan areas.
Daily Maximum Eight-Hour Ozone Averages
Maximum
eight-hour ozone averages measured daily from yesterday back to 1997.
Four Highest Eight-Hour Ozone Concentrations
Calculated
from TCEQ monitoring site data available from today back to 1997.
Eight-Hour Ozone High Value Days
Averages that meet or
exceed 85 parts per billion ozone. Data available from one hour ago back to 1997.
Ozone Hourly Averages
Click a region to get a list of hourly averages.
PLEASE NOTE: This data has not been verified by 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.
High One-Hour Ozone Values
Measurements of high one-hour
ozone concentrations.
High Ozone Summary
Table that summarizes high one-hour
averages greater than 125 ppb and eight-hour ozone averages greater than 76 ppb in Texas
metropolitan areas.
Peak Daily One-Hour Ozone Averages
Maximum one-hour
ozone averages measured daily from yesterday back to 1996.
Airborne Particulates
Airborne particulates (example: dust, smoke, respiratory droplets containing viruses or bacteria) are also referred to as particulate matter or PM. Some are large enough to be seen with the naked eye, while others are so small they can only be seen with a microscope. These can come from natural sources like pollen, dust and wildfires; or from human activity, such as vehicle emissions and some industrial processes. These particles can be classified according to their size and their chemical composition, such as PM2.5 (particles 2.5 microns or less in size or PM10 (particles 10 microns or less in size).
View Airborne Particulates
tables
Tables summarizing the measured averages of fine particulates (particles 2.5
microns or less in size) and coarse particulates (particles 10 microns or less in size) from the
air in Texas metropolitan areas.
PM2.5 (particulate matter) are fine particles and are the smallest particles that are regulated. They consist of particles that are less than or equal to 2.5 micrometers in diameter. By comparison, the average diameter of human hair is 70 micrometers.
As they are so small, PM2.5 can easily travel through your respiratory tract into your lungs and your bloodstream, where they can cause various health problems. Health effects of high concentrations can include: irregular heartbeat, aggravated asthma, decreased lung function, respiratory problems, nonfatal heart attacks, and premature death in people with heart or lung disease. With knowledge of the level of air pollutants in your area, you are able to actively take steps to protect from the negative effects by limiting outdoor activity.
Current PM2.5 Hourly Averages by Region
TCEQ’s monitoring of
particulate matter 2.5 micrometers or less in diameter, measured at each region.
Four Highest
24-Hour PM2.5 Concentrations
Retrieve the four highest 24-hour
PM2.5 (local conditions) acceptable concentration averages from data collected at
TCEQ monitoring sites beginning January 1, 1998 through today.
Daily, Monthly, and Yearly Data Reports
Daily Hourly Data:
Hourly Data
Hourly averages for all the pollutants and meteorological conditions measured by the
TCEQ at each monitoring site.
Map
Use our interactive map to find hourly averaged data.
Monthly Hourly Data:
Monthly Data
Monthly summaries of the hourly averages for all the pollutants and meteorological
conditions measured by TCEQ at each monitoring site.
Map
Use our interactive map to find monthly averaged data.
Yearly Hourly Data:
Yearly Data
Yearly summaries of the hourly averages for all the pollutants and meteorological
conditions measured by TCEQ at each monitoring site.
Map
Use our interactive map to find yearly averaged data.
Hourly Air Pollution Data by Pollutant
Search for measurements of particular air pollutants found at TCEQ monitoring sites statewide.
Daily Summary Report By Site
A daily summary of hourly data collected at TCEQ's (and other select monitoring entities)
continuous ambient monitoring stations.
Monthly Summary Report By Site
A monthly summary of hourly data collected at TCEQ's (and other select monitoring entities)
continuous ambient monitoring stations.
Meteorological and Climatological
Current measurements of winds in the lower atmosphere, which help determine the movement of air pollution across Texas. Wind measurements from these profilers are used to determine the transport of air pollution and to help validate model-generated wind fields used for air quality modeling.
These wind plots are currently unavailable due to technical issues and will be restored as soon as resolved
La Porte Current Wind Plot
Dallas-Fort Worth, Cleburne Airport Current Wind Plot
How It Works
The radar profilers transmit radio wave pulses into the atmosphere and then record the resulting backscattered radio waves to measure winds in the range from 137 meters (449 feet) to 3,601 meters (11,814 feet) above ground level.
Real-time wind data plots are generated every 30 minutes from the radar profilers and relayed to this Web site for display. The plots show the last 12 hours of wind profiles. The wind data are plotted in standard meteorological form, with a vector line indicating the wind direction and barbs indicating the wind speed. The barbs are plotted on the tail of the wind vector (the end where the wind is coming from). Each full barb indicates five meters per second of wind speed (about 10 knots or 12 miles per hour) and a half-barb indicates 2.5 meters per second (about five knots or six miles per hour). The wind plots are colorized for wind speed using the color scale shown on the right side of the plot.
National Oceanic and Atmospheric Administration (NOAA) Data
Data from TCEQ radar profilers are available from NOAA's Multi-Agency Profiler Graphical Data Displays .
Data from the EPA AIR DATA page
The AirData website gives you access to air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. The data comes primarily from the AQS (Air Quality System) database. You can choose from several ways of looking at the data:
- download data into a file (or view it on the screen)
- output the data into one of AirData’s standard reports
- create graphical displays using one of the visualization tools
- investigate monitor locations using an interactive map
AirData lets you display and download monitored hourly, daily, and annual concentration data, AQI data, and speciated particle pollution data.
Monitoring Sites
Information about TCEQ air monitoring sites.
Information about the TCEQ's air monitoring sites and the air pollution, weather and other parameters measured at each site.
Maps, tables, and photos of air quality monitoring sites, plus parameters and measurements.
Ozone: The Facts
Sound science and targeted regulations have greatly reduced ozone concentrations in Texas cities and across the nation.
What is ozone?
Ozone, sometimes referred to as smog, is a gas that is formed in the atmosphere when three atoms of oxygen combine. The chemical structure of ozone is the same wherever it is found; however, there are two categories of ozone.
Stratospheric Ozone is found naturally in the Earth’s upper atmosphere - 6 to 30 miles above the Earth’s surface - where it forms a protective layer that shields us from the sun’s harmful ultraviolet rays.
Ground-Level Ozone is found at ground level (it is also called tropospheric ozone). It is not emitted directly into the air, but created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOCs) in the presence of sunlight. Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOCs. In addition, biogenic sources (living organisms or biological processes) release VOCs that can contribute to ground-level ozone.
What are the health effects of ground-level ozone?
Ground-level ozone is of particular importance because it is a respiratory toxic agent that can cause acute respiratory health effects when people breathe high concentrations of it over several hours. These effects include decreased lung function and pain with deep breaths, and aggravated asthma symptoms.
What conditions lead to elevated ground-level ozone concentrations?
Summer days in Texas can be conducive for ozone formation as high-pressure systems dominate our local weather patterns, giving us clear skies and stagnant winds. Ozone mainly forms in the highest concentrations on warm, sunny days with light wind speeds and low relative humidity which allows more of the pollutant to form and accumulate.
What about indoor air quality?
The United States Environmental Protection Agency (EPA) has identified and characterized significant risks to public health from indoor environmental contaminants that are commonly found in homes, schools, offices, and other buildings where, on average, Texans are spending about 90 percent or more of their time. It is possible for indoor levels of air pollutants to reach up to two to five times higher, and occasionally even 1,000 times higher, than outdoor levels—according to the Texas Department of State Health Services (DSHS).
Common indoor air contaminants include radon, tobacco smoke, cleaning products, chemicals in upholstery foam, mold, combustion by-products, and VOCs. Ozone is not typically an indoor air contaminant. However, ozone generators, which are sometimes used in homes as air purifiers, may cause harmful levels of ozone.
Building systems, such as heating, ventilating, and air conditioning, also have a direct influence on the type and amount of exposure occupants may experience from indoor environmental contaminants.
For more information on indoor air quality visit:
Should I limit exercise and stay indoors when ozone concentrations are elevated?
The World Health Organization ranks physical inactivity as a major risk factor for heart disease, breast cancer, colon cancer, and diabetes. The Centers for Disease Control and Prevention found that 27.2 percent of adults and 16.6 percent of youth in Texas were inactive in 2014. For children, the risks of obesity are well-documented.
Many people engage in physical exercise to prevent disease and obesity. Individuals must consider those benefits when making choices about whether to follow the EPA’s recommendation to limit exercise outdoors and stay indoors when concentrations of ozone in ambient air are elevated.
A personal decision to limit outdoor activities should consider more than ozone levels because there are other conditions that can increase health risks, such as high heat and humidity.
For more information on obesity risks, visit:
- Childhood Obesity Facts
- Physical Activity for a Healthy Weight
- State Indicator Report on Physical Activity
What is background ozone and why is it important?
Background ozone is the amount of ozone due to distant sources. It can come from natural processes such as movement from the stratosphere or wildfires. Also, it can be transported from international pollution sources. It is important to study the locations in which background ozone is formed and where that ozone is transported. This information is used to develop successful reduction strategies.
What is the Air Quality Index?
The AQI is a numerical scale accompanied by corresponding colors created by the EPA for rating air quality. The AQI scale is based on the National Ambient Air Quality Standards (NAAQS) and is used to report current conditions and forecast future conditions.
Each NAAQS pollutant, such as ozone, has a separate AQI scale. For a given locality, a pollutant other than ozone could be in the good range while the ozone level is unhealthy. Colors indicate the amount of threat to health posed by the concentration of a pollutant. For example, an AQI for a locality anywhere from 101 to 150 due to ozone is coded Level Orange, which means “unhealthy for sensitive groups.”
For more information on the AQI visit:
What is an Ozone Action Day forecast?
Ozone Action Day (OAD) forecasts are made daily by TCEQ meteorologists during the ozone-forecast season (roughly March through November in Texas) for each of nine metropolitan areas in Texas (see below).
Metropolitan Area
Ozone Forecast Season Begins
Ozone Forecast Season Ends
Austin
Beaumont-Port Arthur
Corpus Christi
Dallas-Fort Worth
El Paso
Houston
San Antonio
Tyler-Longview
Victoria
April 1
May 1
April 1
March 1
May 1
March 1
April 1
May 1
April 1
October 31
October 31
October 31
October 31
October 31
November 30
October 31
September 30
October 31
The OAD forecast seasons are based on when each area is likely to experience warmer temperatures and weather conditions that are favorable for increased ozone formation. Each forecast predicts whether ozone levels in the area may reach or exceed the EPA's Air Quality Index (AQI) Level Orange category (Unhealthy for Sensitive Groups). Level Orange on the AQI corresponds to a level of ozone that would exceed the level of the National Ambient Air Quality Standard (NAAQS).
TCEQ meteorologists use historic meteorological data, historic ozone measurements, and ozone-prediction models to make these predictions, which are forecasts and not actual measured ozone values. TCEQ issues OAD notifications a day in advance of when conditions are forecast to be favorable for the creation of elevated ozone levels so citizens, businesses, and industry can take steps to reduce the pollutants that contribute to ozone formation. When they forecast an OAD, TCEQ meteorologists contact the National Weather Service, which then broadcasts the information across its “weather wire.” TCEQ also contacts officials in affected areas so that local community clean-air coalitions can notify media, government, business, and industry. The forecasts are made, in most cases, by 2 p.m. local time and are valid for the next day.
TCEQ maintains records of when Ozone Action Days (OAD) are issued for each metropolitan area and has this information available going back to 2008. View Historical Ozone Action Days.
What can I do to limit ozone formation?
- Limit driving and idling; instead, carpool, combine errands, use public transportation, bike, or walk.
- Refuel your vehicle in the late afternoon or evening and don’t top off the tank.
- Keep your vehicle maintained, including proper tire pressure.
- Maintain your yard equipment, including changing the oil and replacing air filters regularly. Also consider using tools without motors. Hand tools such as shears, edgers, and push reel mowers are lightweight, quiet, and easy to use, and do not generate emissions.
- Don’t burn yard waste.
- Use paint and cleaning products with less or zero VOCs.
How can I sign up to receive email and text alerts?
You can subscribe for email and text alerts about tTCEQ’s Air Quality Forecast and other topics. Don’t worry, you can unsubscribe at any time.
You can also sign up to receive e-mail alerts through the EPA EnviroFlash website
Related Web Pages
- Air Quality Successes - Criteria Pollutants
Texas’ air quality has made huge strides in the past few decades. The state has devoted significant resources for air monitoring and research to advance the science and find innovative ways to improve air quality. - Air Pollution from Ozone
General information on ozone, and TCEQ planning that addresses the ozone National Ambient Air Quality Standards (NAAQS). - Take Care of Texas encourages all Texans to help keep our air and water clean, conserve water and energy, and reduce waste: Take Care of Texas
- Sign up for Take Care of Texas News You Can Use—a free monthly enewsletter.
- Learn more about air quality at the TCEQ Web page Today's Texas Air Quality Forecast.
Exceptional Event Demonstrations for Particulate Matter
Demonstrations supporting the proposed exceptional events for particulate matter data.
About Exceptional Events
Definition
Exceptional events are unusual or naturally occurring events that affect air quality and are not reasonably controllable or preventable. Wildfires are an example.
How They Affect Monitoring Data
States can request that the United States Environmental Protection Agency (EPA) exclude air quality monitoring data affected by an exceptional event from determining if an area met an air quality health standard . The demonstration documents below were developed in support of TCEQ's proposed exceptional event flags.
EPA Regulations and Guidance
Exceptional event regulations and guidance are provided on EPA's Treatment of Air Quality Monitoring Data Influenced by Exceptional Events website.
Current Exceptional Event Demonstration Proposal
El Paso, Nueces, and Harris County PM10 Demonstration for Three Days in 2021
- Demonstration Summary (English)
- Demonstration Summary (Spanish)
- Proposed PM10 Exceptional Event Demonstration Report (English only) posted 6/27/2023
Public Comment Period: Closed
TCEQ posted this demonstration for written public comment on Jun. 27, 2023. We will submit all comments received or postmarked by 5:00 p.m. CDT on Jul. 31, 2023, to the EPA along with the final demonstration. No public hearing will be held for this action.
Previous Exceptional Event Demonstrations
El Paso Demonstrations
December 23, 2020 PM10 Exceptional Event
- Demonstration Summary (English)
- Demonstration Summary (Spanish)
- Final PM10 Exceptional Event Demonstration Report (English only) posted 1/6/2023
- Public Comments Received from October 26, 2022 to December 2, 2022 (English only)
- 1/2/2023 Letter to EPA Submitting Demonstration (English only)
2017-2018 PM10 Exceptional Events
- Final 2017-2018 Exceptional Events Demonstration (English Only)
2010-2012 PM2.5 and PM10 Exceptional Events
- Final 2010-2012 Exceptional Events Demonstration (English Only)
- Addendum (English Only)
Houston Clinton Monitor Demonstrations (English Only)
2012 Exceptional Events
2011 Exceptional Events
2010 Exceptional Events
Related Topics
- Ozone Exceptional Event Demonstrations
- Mitigation Plans for Exceptional Events in Texas
- EPA Review of TCEQ Mitigation Plans
- International transport demonstrations to Texas nonattainment areas
- TCEQ Index of Air Topics lists a wide range of programs and how the agency is working to improve air quality in Texas
TCEQ Air Monitoring Network Plans
Historical air-monitoring network plans and EPA responses.
Public Comment Invited: TCEQ Draft 2024 Annual Monitoring Network Plan
Under the requirements of 40 Code of Federal Regulations Part 58, TCEQ reviews its air monitoring network each year and creates a monitoring network plan to demonstrate how Texas is meeting or will meet federal air monitoring requirements. The monitoring plan includes proposed changes from the previous year and future proposed changes to the monitoring network. In addition, TCEQ conducts a broader analysis of the monitoring needs in Texas every five years since 2010. This five-year assessment evaluates any changes in population, emissions sources, and monitored concentrations to determine whether individual monitors within the network should be added, moved, or decommissioned to best understand and evaluate air quality.
Both the annual monitoring network plan and the five-year assessment discuss the specific air monitors that are used to meet federal air quality standards as well as other monitors that derive additional information on air quality and the weather. Because the plan and assessment are focused on federally required monitoring, they do not include a review of state-initiated monitoring that is conducted in addition to federal requirements. In the case of lead, TCEQ may also request a waiver of monitoring requirements through the plan and a renewal of any granted waivers in the assessment.
TCEQ posts the annual monitoring network plan and five-year assessments for 30 days to solicit public comment prior to their submittal to the EPA. The monitoring network plan and any comments received are sent to the EPA by July 1 of each year for review and approval. Annual monitoring network plans and the latest five-year network assessment, including TCEQ responses to public comments and the EPA response, are available below in PDF format.
IMPORTANT: Many of the AMNP files are in portfolios. These files will automatically download when clicked. You will be able to view in Adobe Reader. Get Adobe Reader
Last Five Years Monitoring Network Plans | EPA Responses |
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2022 Annual Monitoring Network
Plan When you click this link, this portfolio will automatically download so you can view it with Adobe Reader or Adobe Acrobat. |
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2021 Annual Monitoring Network
Plan When you click this link, this portfolio will automatically download so you can view it with Adobe Reader or Adobe Acrobat. |
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2020 Annual Monitoring Network
Plan When you click this link, this portfolio will automatically download so you can view it with Adobe Reader or Adobe Acrobat. |
EPA Response to the 2020 AMNP |
2019 Annual Monitoring Network Plan | EPA Response to the 2019 AMNP |
Latest Five Year Ambient Air Monitoring Network Assessment | EPA Responses |
---|---|
2020 Five Year Ambient Air
Monitoring Network Assessment
TCEQ Response to Comments Received on the 2020 Five-Year Assessment |
Today's Texas Air Quality Forecast
The latest forecast for air quality conditions in Texas' metropolitan areas.
April 19, 2024
Forecast Region (Click name for AIRNOW version) |
Fri 04/19/2024 |
Sat 04/20/2024 |
Sun 04/21/2024 |
Mon 04/22/2024 |
Tue 04/23/2024 |
---|---|---|---|---|---|
Amarillo | Good | Good | Good | Good | Good |
Austin | Good | Good | Good | Good | Good |
Beaumont-Port Arthur | PM2.5 | Good | Good | Good | Good |
Big Bend | PM2.5 | Good | Good | Good | Good |
Brownsville-McAllen | PM2.5 | PM2.5 | PM2.5 | Good | PM2.5 |
Bryan-College Station | Good | Good | Good | Good | Good |
Corpus Christi | PM2.5 | PM2.5 | PM2.5 | Good | Good |
Dallas-Fort Worth | Good | Good | Good | Ozone | Ozone |
El Paso | Ozone/PM2.5/PM10 | Ozone/PM2.5/PM10 | PM2.5 | Ozone/PM2.5 | Ozone/PM2.5 |
Houston | PM2.5 | PM2.5 | Good | Ozone | Ozone/PM2.5 |
Laredo | PM2.5 | PM2.5 | Good | Good | Good |
Lubbock | Good | Good | Good | Good | Good |
Midland-Odessa | Good | Good | Good | Good | Good |
San Antonio | PM2.5 | PM2.5 | Good | Good | Good |
Tyler-Longview | Good | Good | Good | Good | Good |
Victoria | PM2.5 | PM2.5 | Good | Good | Good |
Waco-Killeen | Good | Good | Good | Good | Good |
An asterisk (*) indicates that an Ozone Action Day is or will be in effect for the indicated region. | |||||
A caret (^) indicates that levels of PM may exceed the applicable short-term NAAQS. For more information see the following TCEQ websites:Air Pollution from Particulate Matter and Voluntary Tips for Citizens and Business to Reduce Emissions. |
Forecast Discussion
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could be enough for ozone to reach the middle to upper end of the "Moderate" range in parts of the El Paso area and the upper end of the "Good" range in parts of the Big Bend, Houston, and Midland-Odessa areas.
Light morning winds may limit atmospheric mixing and dispersion of urban fine particulate matter long enough at the surface in portions of Far West Texas to raise the overall daily PM2.5 AQI to the middle to upper end of the "Moderate" range in parts of the El Paso area. The daily PM10 AQI may also reach the lower end of the "Moderate" range in parts of the El Paso area as well.
Slightly elevated relative humidity levels from the Gulf of Mexico are lingering over South Texas, Southeast Texas, the coastal bend of Texas and portions of South Central Texas and the Big Bend region. Additionally, moderate to high density residual smoke from seasonal burning activities throughout central-southern Mexico, Central America, as well as the Yucatan Peninsula are also lingering and/or filtering over South Texas, Southeast Texas, the coastal bend of Texas and portions of South Central Texas and the Big Bend region, ahead of and along a weak cold frontal boundary extending across Central Texas. The overall daily PM2.5 AQI may reach the lower end of the "Unhealthy for Sensitive Groups" range in parts of the Brownsville-McAllen area, particularly over portions of South Padre Island; the middle to upper end of the "Moderate" range in parts of the Corpus Christi and Victoria areas; the lower end of the "Moderate" range in parts of the Beaumont-Port Arthur, Big Bend, Houston, Laredo, and San Antonio areas; and the upper end of the "Good" range for the majority of the Austin and Bryan-College Station areas. The daily PM10 AQI may also reach the lower end of the "Moderate" range in parts of the Brownsville-McAllen area and the upper end of the "Good" range in parts of the Austin, Corpus Christi, Houston, and San Antonio areas as well.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could be enough for ozone to reach the lower end of the "Moderate" range in parts of the El Paso area and the upper end of the "Good" range in parts of the Big Bend and Midland-Odessa areas.
Slightly elevated urban fine particulate levels associated with light morning winds over portions of Far West Texas could be enough to raise the daily PM2.5 AQI to the lower to middle of the "Moderate" range in parts of the El Paso area. The daily PM10 AQI may reach the lower end of the "Moderate" range in parts of the El Paso area as well.
The moderate to heavy residual smoke from seasonal burning activities throughout central-southern Mexico, Central America, and the Yucatan Peninsula as well as elevated relative humidity levels are forecast to continue lingering and/or filtering at varying intensities primarily over South Texas, Southeast Texas, the coastal bend of Texas and portions of South Central Texas and the Big Bend region. Scattered rain showers associated with the slow moving cold front may help wash-out some of the fine particulate matter. The overall daily PM2.5 AQI is forecast to reach the upper end of the "Moderate" range in parts of the Brownsville-McAllen area; the lower to middle of the "Moderate" range in parts of the Corpus Christi and Victoria areas; the lower end of the "Moderate" range in parts of the Houston, Laredo, and San Antonio areas; and the upper end of the "Good" range for the majority of the Austin, Beaumont-Port Arthur, Big Bend, and Bryan-College Station areas.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could be enough for ozone to reach the upper end of the "Good" range in parts of the Big Bend and El Paso areas.
Fine urban particulate levels owing to limited dispersion from light morning winds over portions of Far West Texas may be enough to increase the daily PM2.5 AQI to the lower end of the "Moderate" range in parts of the El Paso area.
Northerly windflow will help push the moderate to heavy density residual smoke from seasonal burning activities throughout central-southern Mexico, Central America, as well as the Yucatan Peninsula out of the state. The more moderate density residual smoke may still linger over Deep South Texas and the southern coastal bend of Texas with lighter amounts over Southeast and South Central Texas. Slightly elevated relative humidity levels may continue to contribute towards elevating PM2.5 levels over South Texas, the coastal bend of Texas, and portions of Southeast Texas as well. The overall daily PM2.5 AQI is forecast to reach the middle to upper end of the "Moderate" range in parts of the Brownsville-McAllen area; the lower end of the "Moderate" range in parts of the Corpus Christi area; and the upper end of the "Good" range for the majority of the Austin, Beaumont-Port Arthur, Bryan-College Station, Houston, Laredo, San Antonio, and Victoria areas.
Otherwise and elsewhere, moderate winds, cool to mild temperatures, lingering cloud cover, and/or lower incoming background levels should help keep air quality in the "Good" range in most spots.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could be enough for ozone to reach the middle of the "Moderate" range in parts of the Houston area; the lower end of the "Moderate" range of the Dallas-Fort Worth and El Paso areas; and the upper end of the "Good" range in parts of the Austin and San Antonio areas.
Depending on the amount of lingering residual smoke from the seasonal burning activities throughout central-southern Mexico, Central America, as well as the Yucatan Peninsula, fine particulate levels may be slightly elevated over portions of South Texas. Meanwhile, slightly elevated urban fine particulate background levels over portions of Southeast and Far West Texas associated with light morning winds could at times raise PM2.5 concentrations. The overall daily PM2.5 AQI may reach the lower end of the "Moderate" range in parts of the El Paso area and the upper end of the "Good" range in parts of the Brownsville-McAllen and Houston areas.
Otherwise and elsewhere, moderate winds, cool to mild temperatures, and/or lower incoming background levels should help keep air quality in the "Good" range in most spots.
Light winds, warm temperatures, sufficient afternoon sunshine, and/or elevated incoming background levels could be enough for ozone to reach the middle of the "Moderate" range in parts of the Houston area; the lower end of the "Moderate" range of the Dallas-Fort Worth and El Paso areas; and the upper end of the "Good" range in parts of the Austin, Lubbock, Midland-Odessa, and San Antonio areas.
Depending on the amount seasonal burning activities throughout central-southern Mexico, Central America, as well as the Yucatan Peninsula, model guidance suggests that southerly winds may begin to introduce another plume of light to moderate density residual smoke and slightly elevated fine particulate levels over portions of South Texas, Southwest Texas, and the southern coastal bend of Texas. Meanwhile, slightly elevated urban fine particulate background levels over portions of Southeast and Far West Texas associated with light morning winds could periodically raise PM2.5 concentrations. The overall daily PM2.5 AQI may reach the lower end of the "Moderate" range in parts of the Brownsville-McAllen, El Paso, and Houston areas and the upper end of the "Good" range in parts of the Corpus Christi and Laredo areas.
Otherwise and elsewhere across the state, moderate winds, mild temperatures, and/or lower incoming background levels should help keep air quality in the "Good" range for most areas.
This forecast was last updated at 10:35 AM on Friday, April 19th and is updated daily on normal TCEQ workdays and may also be updated on weekends or holidays when air pollution levels are high. Regardless of our forecast, we always recommend that each individual determine what level of activity they should conduct based on the actual local conditions. See the "Related Current Data" links below to monitor the latest actual conditions.
Related Items
Related Current Data
Site AutoCAD Drawings
A collection of CAD drawings to show equipment on the site.
Notice: Some of these are very large, please give the file a few moments to load.
Timeline for Near Real-time Ambient Air Quality Data Flows
Flows for continuous and automated gas chromatograph (AutoGC) data, depicting and describing the time it takes for near real-time ambient air quality data to be collected, retrieved, processed, and posted to the website.
Near Real-time Data Flow for Continuous Gaseous and Particulate Data
The figure above shows the total timeline of 60 minutes for TCEQ and partners to monitor continuous, near real-time ambient air quality and upload the data to our webpages. The timeline for each step is as follows:
- Sample collection - 15 minutes
- Our system calls site to pick up data - every 20 minutes
- Data processing - 10 minutes
- Data posted to TCEQ website - 15 minutes
Near Real-time Data Flow for AutoGC Data
TCEQ and our partners measure ambient air quality for volatile organic compounds using AutoGCs. The figure above shows the total timeline of 150-178 minutes to collect, analyze, and upload that data to our webpages. The timeline for each step is as follows:
- Sample collection - 40 minutes
- Sample Analysis - 48 minutes
- Our system calls site to pick up data - every 60 minutes
- Data posted to TCEQ website - 30 minutes
Historical Ozone Action Days
TCEQ maintains records of Ozone Action Days (OAD) that were forecast and the dates for which we issued an OAD alert for each metropolitan area going back to 2008.
Each day during ozone season—roughly March through November in Texas—Ozone Action Day forecasts are made for nine participating metropolitan areas. TCEQ informs the public when conditions are forecast to be favorable for high ozone levels in any of these areas. Also see Air Quality Forecast and Ozone Action Day Alerts and our video on TCEQ Ozone Action Day Forecasting.
Year | Austin | Beaumont- Port Arthur |
Corpus Christi | Dallas-Fort Worth | El Paso | Houston | San Antonio | Tyler-Longview | Victoria |
---|---|---|---|---|---|---|---|---|---|
2023 | 13 | 12 | 2 | 58 | 13 | 51 | 13 | 4 | 0 |
2022 | 25 | 11 | 0 | 61 | 29 | 55 | 19 | 14 | 0 |
2021 | 5 | 4 | 1 | 28 | 18 | 26 | 12 | 3 | 1 |
2020 | 2 | 5 | 0 | 28 | 26 | 25 | 8 | 0 | 0 |
2019 | 5 | 5 | 0 | 35 | 35 | 42 | 7 | 2 | 0 |
2018 | 8 | 10 | 0 | 23 | 30 | 33 | 10 | 1 | 0 |
2017 | 3 | 4 | 1 | 21 | 6 | 27 | 6 | 0 | 0 |
2016 | 2 | 2 | 0 | 15 | 3 | 28 | 2 | 0 | 0 |
2015 | 1 | 6 | 0 | 14 | 1 | 34 | 2 | 1 | 0 |
2014 | 1 | 0 | 0 | 7 | 0 | 15 | 3 | 0 | 0 |
2013 | 5 | 4 | 2 | 24 | 3 | 25 | 11 | 2 | 0 |
2012 | 5 | 5 | 0 | 22 | 0 | 35 | 5 | 3 | 0 |
2011 | 9 | 14 | 5 | 32 | 3 | 44 | 9 | 11 | 5 |
2010 | 5 | 4 | 5 | 27 | 6 | 42 | 5 | 1 | 5 |
2009 | 7 | 5 | 0 | 36 | 2 | 38 | 8 | 6 | 0 |
2008 | 6 | 3 | 3 | 31 | 4 | 49 | 10 | 4 | 1 |
Select the appropriate tab below to see the dates we issued an OAD notification for the following metropolitan areas.
OAD dates for the Austin Metropolitan Area
2023
05/18/23
06/07/23
06/08/23
08/15/23
08/17/23
08/31/23
09/01/23
09/02/23
09/03/23
09/18/23
09/19/23
09/28/23
10/21/23
2022
03/19/22
03/25/22
04/03/22
05/26/22
05/27/22
05/28/22
07/10/22
07/13/22
08/12/22
09/09/22
09/10/22
09/14/22
09/15/22
09/22/22
09/23/22
09/27/22
09/28/22
09/29/22
09/30/22
10/01/22
10/02/22
10/03/22
10/04/22
10/06/22
2021
06/16/21
06/18/21
06/19/21
09/25/21
2020
08/20/20
09/30/20
2019
04/09/19
06/08/19
07/25/19
07/26/19
2018
04/28/18
05/07/18
05/28/18
07/26/18
07/27/18
08/01/18
08/02/18
2017
05/06/17
09/13/17
10/01/17
2016
04/23/16
05/06/16
2015
08/27/15
2014
08/14/14
2013
07/03/13
07/04/13
08/19/13
08/30/13
09/25/13
2012
06/09/12
06/24/12
09/20/12
09/21/12
2011
08/27/11
08/28/11
08/29/11
09/07/11
09/08/11
09/09/11
09/10/11
09/11/11
2010
05/28/10
05/29/10
08/28/10
08/27/10
2009
05/30/09
06/05/09
06/25/09
06/26/09
09/01/09
09/02/09
2008
05/18/0808/14/08
08/26/08
08/31/08
09/06/08
OAD dates for the Beaumont-Port Arthur Metropolitan Area
2023
05/03/23
05/18/23
05/19/23
05/23/23
05/27/23
05/28/23
05/31/23
06/02/23
06/03/23
06/09/23
09/01/23
10/21/23
2022
05/12/22
05/27/22
05/28/22
06/18/22
06/19/22
06/20/22
06/23/22
09/15/22
09/22/22
09/23/22
10/07/22
2021
06/16/21
06/17/21
06/19/21
09/09/21
2020
06/11/20
08/17/20
08/18/20
09/30/20
10/01/20
2019
03/22/19
04/20/19
08/15/19
08/31/19
09/14/19
2018
04/28/18
05/07/18
05/15/18
05/16/18
07/26/18
07/27/18
07/28/18
08/02/18
08/03/18
08/23/18
2017
04/24/17
05/06/17
06/09/17
10/01/17
2016
06/30/16
07/01/16
2015
06/04/15
06/05/15
06/06/15
08/02/15
08/13/15
08/14/15
2014
No Issuances
2013
07/04/13
08/29/13
08/30/13
09/26/13
2012
05/22/12
06/01/12
06/27/12
09/22/12
09/23/12
2011
06/02/11
06/05/11
06/06/11
08/25/11
08/26/11
08/27/11
08/28/11
08/29/11
09/09/11
09/10/11
09/11/11
09/12/11
09/16/11
09/24/11
2010
05/27/10
05/28/10
05/29/10
10/09/10
2009
05/30/09
06/24/09
06/25/09
06/28/09
07/01/09
2008
08/26/08
08/27/08
08/30/08
OAD dates for the Corpus Christi Metropolitan Area
2023
08/30/23
08/31/23
2022
No Issuances
2021
06/18/21
2020
No Issuances
2019
No Issuances2018
No Issuances2017
09/12/172016
No Issuances
2015
No Issuances
2014
No Issuances
2013
08/18/13
09/25/13
2012
No Issuances2011
09/07/11
09/08/11
09/09/11
09/10/11
09/11/11
2010
08/26/10
08/27/10
09/30/10
10/01/10
10/02/10
2009
No Issuances2008
09/06/08
09/28/08
09/29/08
OAD dates for the Dallas-Fort Worth Metropolitan Area
2023
05/03/23
05/17/23
05/18/23
05/22/23
05/26/23
05/27/23
05/28/23
05/30/23
05/31/23
06/01/23
06/02/23
06/03/23
06/05/23
06/06/23
06/07/23
06/08/23
06/09/23
06/16/23
06/19/23
07/17/23
07/23/23
07/24/23
07/25/23
07/29/23
07/30/23
07/31/23
08/01/23
08/02/23
08/03/23
08/07/23
08/16/23
08/17/23
08/18/23
08/19/23
08/21/23
08/22/23
08/23/23
08/24/23
08/25/23
08/26/23
08/27/23
08/29/23
08/30/23
08/31/23
09/01/23
09/02/23
09/03/23
09/06/23
09/07/23
09/08/23
09/16/23
09/18/23
09/26/23
09/27/23
09/28/23
09/29/23
09/30/23
10/01/23
2022
03/26/22
03/27/22
04/03/22
04/30/22
05/06/22
05/07/22
05/12/22
05/14/22
05/16/22
05/27/22
05/28/22
06/11/22
06/17/22
06/18/22
06/19/22
06/20/22
06/21/22
06/22/22
06/23/22
06/24/22
06/25/22
06/29/22
06/30/22
07/01/22
07/02/22
07/09/22
07/10/22
07/11/22
07/12/22
07/13/22
07/14/22
07/15/22
07/16/22
08/11/22
08/12/22
08/13/22
08/14/22
08/16/22
08/19/22
08/26/22
09/05/22
09/07/22
09/08/22
09/09/22
09/10/22
09/14/22
09/15/22
09/16/22
09/21/22
09/22/22
09/23/22
09/24/22
09/26/22
09/27/22
09/28/22
09/29/22
10/01/22
10/02/22
10/03/22
10/05/22
10/06/22
2021
06/14/21
06/15/21
06/16/21
06/17/21
06/18/21
06/19/21
07/05/21
07/07/21
07/21/21
07/22/21
07/26/21
07/27/21
07/28/21
07/29/21
07/30/21
08/03/21
08/04/21
08/05/21
08/25/21
08/26/21
09/01/21
09/07/21
09/08/21
09/23/21
09/24/21
09/25/21
09/26/21
10/07/21
2020
05/19/20
06/04/20
06/06/20
06/07/20
06/11/20
06/12/20
06/13/20
06/14/20
06/15/20
06/25/20
08/02/20
08/04/20
08/06/20
08/15/20
08/16/20
08/17/20
08/18/20
08/19/20
08/20/20
08/21/20
08/22/20
08/23/20
08/24/20
08/25/20
09/30/20
10/06/20
10/07/20
10/11/20
2019
04/09/19
04/10/19
05/14/19
05/15/19
05/31/19
06/01/19
06/02/19
06/03/19
06/08/19
06/12/19
07/12/19
07/24/19
07/25/19
07/26/19
07/27/19
07/31/19
08/01/19
08/05/19
08/06/19
08/07/19
08/13/19
08/15/19
08/16/19
08/17/19
08/30/19
08/31/19
09/02/19
09/03/19
09/04/19
09/05/19
09/06/19
09/07/19
09/14/19
09/15/19
09/16/19
2018
04/28/18
05/06/18
05/07/18
05/08/18
05/17/18
05/24/18
05/28/18
05/29/18
06/03/18
07/20/18
07/21/18
07/22/18
07/24/18
07/25/18
07/26/18
07/27/18
07/28/18
08/01/18
08/02/18
08/03/18
08/21/18
08/22/18
08/23/18
2017
05/06/17
05/13/17
05/14/17
05/15/17
05/30/17
05/31/17
06/08/17
06/20/17
07/07/17
07/31/17
08/03/17
08/04/17
08/05/17
08/09/17
08/10/17
08/22/17
09/01/17
09/13/17
09/14/17
10/01/17
10/02/17
2016
04/23/16
05/06/16
06/07/16
06/08/16
06/09/16
06/18/16
06/20/16
06/29/16
06/30/16
07/01/16
07/26/16
07/27/16
08/31/16
09/21/16
09/22/16
2015
05/01/15
06/05/15
06/06/15
06/09/15
07/30/15
08/01/15
08/03/15
08/10/15
08/13/15
08/14/15
08/26/15
08/27/15
08/28/15
09/24/15
2014
07/19/14
07/22/14
07/23/14
07/24/14
07/25/14
08/13/14
08/14/14
2013
06/03/13
07/04/13
07/05/13
07/12/13
07/13/13
07/18/13
07/25/13
08/01/13
08/10/13
08/11/13
08/16/13
08/18/13
08/19/13
08/20/13
08/29/13
08/30/13
08/31/13
09/03/13
09/04/13
09/05/13
09/06/13
09/12/13
09/25/13
09/26/13
2012
05/16/12
05/17/12
05/18/12
05/22/12
06/09/12
06/22/12
06/23/12
06/24/12
06/25/12
06/26/12
06/27/12
06/28/12
08/07/12
08/08/12
08/09/12
08/11/12
08/14/12
08/20/12
09/10/12
09/21/12
09/22/12
09/23/12
2011
06/05/11
06/06/11
06/23/11
07/01/11
07/02/11
07/06/11
07/07/11
07/08/11
07/18/11
07/19/11
07/27/11
08/02/11
08/03/11
08/04/11
08/14/11
08/15/11
08/22/11
08/25/11
08/26/11
08/27/11
08/28/11
08/29/11
08/30/11
09/01/11
09/10/11
09/11/11
09/12/11
09/21/11
09/27/11
09/28/11
09/29/11
10/04/11
2010
05/26/10
05/27/10
05/28/10
05/29/10
05/30/10
06/04/10
06/24/10
07/17/10
08/02/10
08/03/10
08/05/10
08/06/10
08/11/10
08/12/10
08/13/10
08/17/10
08/18/10
08/23/10
08/24/10
08/26/10
08/27/10
08/28/10
09/05/10
09/16/10
09/17/10
09/18/10
09/19/10
2009
05/21/09
05/29/09
05/30/09
05/31/09
06/05/09
06/06/09
06/24/09
06/25/09
06/26/09
06/27/09
06/28/09
07/01/09
07/02/09
07/03/09
07/07/09
07/08/09
07/17/09
07/19/09
07/22/09
07/23/09
07/24/09
08/12/09
08/13/09
08/14/09
08/22/09
08/23/09
08/24/09
08/25/09
08/26/09
09/01/09
09/02/09
09/05/09
09/06/09
09/07/09
09/08/09
09/09/09
2008
05/18/08
05/29/08
06/22/08
06/30/08
07/01/08
07/16/08
07/17/08
07/18/08
07/20/08
08/03/08
08/04/08
08/13/08
08/14/08
08/23/08
08/24/08
08/26/08
08/27/08
08/28/08
08/29/08
08/30/08
08/31/08
09/05/08
09/06/08
09/07/08
09/20/08
09/21/08
09/25/08
09/26/08
09/27/08
09/28/08
09/29/08
OAD dates for the El Paso Metropolitan Area
2023
05/12/23
06/28/23
07/05/23
07/16/23
08/03/23
08/04/23
08/05/23
08/06/23
08/30/23
08/31/23
09/01/23
09/02/23
09/03/23
2022
04/30/22
05/14/22
05/15/22
05/26/22
05/27/22
06/01/22
06/08/22
06/10/22
06/11/22
06/30/22
07/01/22
07/02/22
07/05/22
07/06/22
07/10/22
07/11/22
07/12/22
07/15/22
07/16/22
07/21/22
07/23/22
07/26/22
08/02/22
08/05/22
08/13/22
08/14/22
08/26/22
09/09/22
09/10/22
2021
05/05/21
06/12/21
06/18/21
06/19/21
06/22/21
06/23/21
07/09/21
07/10/21
07/17/21
07/21/21
07/22/21
07/26/21
08/04/21
08/06/21
08/07/21
08/08/21
09/14/21
09/15/21
2020
06/02/20
06/03/20
06/04/20
06/25/20
07/10/20
07/17/20
07/18/20
07/21/20
07/28/20
08/02/20
08/03/20
08/04/20
08/05/20
08/07/20
08/10/20
08/11/20
08/12/20
08/13/20
08/14/20
08/19/20
08/20/20
08/21/20
08/22/20
08/27/20
08/28/20
08/29/20
2019
4/19/2019
05/14/19
05/15/19
05/24/19
05/30/19
05/31/19
06/02/19
06/06/19
06/07/19
06/11/19
07/12/19
07/14/19
07/15/19
07/16/19
07/20/19
07/21/19
07/24/19
07/25/19
07/26/19
07/27/19
07/31/19
08/01/19
08/02/19
08/06/19
08/15/19
08/23/19
08/24/19
08/26/19
08/27/19
08/28/19
08/29/19
08/30/19
08/31/19
09/02/19
09/06/19
2018
04/26/18
05/07/18
05/09/18
05/24/18
06/07/18
06/08/18
06/21/18
06/23/18
06/25/18
06/26/18
06/27/18
06/28/18
07/20/18
07/21/18
07/22/18
07/23/18
07/25/18
07/29/18
07/30/18
08/01/18
08/02/18
08/03/18
08/04/18
08/14/18
08/29/18
09/09/18
09/10/18
09/11/18
09/12/18
09/24/18
2017
06/09/17
06/14/17
06/17/17
06/20/17
06/21/17
09/12/17
2016
06/08/16
06/18/16
07/04/16
2015
07/01/15
2014
No Issuances
2013
06/11/13
06/12/13
06/27/13
2012
No Issuances
2011
06/22/11
06/26/11
08/05/11
2010
07/13/10
07/14/10
07/15/10
08/04/10
08/10/10
08/13/10
2009
07/24/09
07/25/09
2008
06/14/08
07/31/08
08/12/08
08/13/08
OAD dates for the Houston Metropolitan Area
2023
03/25/23
04/01/23
04/30/23
05/03/23
05/17/23
05/18/23
05/19/23
05/20/23
05/22/23
05/23/23
05/24/23
05/25/23
05/26/23
05/27/23
05/28/23
05/31/23
06/01/23
06/02/23
06/03/23
06/04/23
06/05/23
06/06/23
06/07/23
06/08/23
06/09/23
07/31/23
08/02/23
08/15/23
08/16/23
08/17/23
08/24/23
08/25/23
08/26/23
08/27/23
08/29/23
08/30/23
08/31/23
09/01/23
09/02/23
09/03/23
09/07/23
09/08/23
09/11/23
09/12/23
09/17/23
09/18/23
09/19/23
09/27/23
09/28/23
10/20/23
10/21/23
2022
03/10/22
03/19/22
03/25/22
03/26/22
04/03/22
04/28/22
05/06/22
05/11/22
05/12/22
05/13/22
05/14/22
05/16/22
05/26/22
05/27/22
05/28/22
06/02/22
06/03/22
06/04/22
06/09/22
06/17/22
06/18/22
06/19/22
06/20/22
06/22/22
06/23/22
06/24/22
06/25/22
06/26/22
07/13/22
08/16/22
08/18/22
08/26/22
09/01/22
09/07/22
09/09/22
09/10/22
09/11/22
09/13/22
09/14/22
09/15/22
09/16/22
09/20/22
09/21/22
09/22/22
09/23/22
09/24/22
09/25/22
09/26/22
10/01/22
10/02/22
10/03/22
10/04/22
10/05/22
10/06/22
10/07/22
2021
04/20/21
04/25/21
05/06/21
06/13/21
06/14/21
06/15/21
06/16/21
06/17/21
06/18/21
06/19/21
07/21/21
07/22/21
07/26/21
07/27/21
07/28/21
08/04/21
08/25/21
09/07/21
09/08/21
09/09/21
09/25/21
09/26/21
10/06/21
10/07/21
10/08/21
10/09/21
2020
04/24/20
05/01/20
05/11/20
05/18/20
05/19/20
05/27/20
06/11/20
06/12/20
06/13/20
06/16/20
06/17/20
08/03/20
08/04/20
08/07/20
08/17/20
08/18/20
08/19/20
08/20/20
08/21/20
08/22/20
09/06/20
09/30/20
10/01/20
10/07/20
10/14/20
2019
03/22/19
04/02/19
04/09/19
04/10/19
04/11/19
04/15/19
04/20/19
04/21/19
04/26/19
04/27/19
04/28/19
05/05/19
05/13/19
05/14/19
06/01/19
06/03/19
06/08/19
06/09/19
06/12/19
06/13/19
06/14/19
06/28/19
06/29/19
07/24/19
07/25/19
07/26/19
07/27/19
08/15/19
08/16/19
08/31/19
09/01/19
09/02/19
09/03/19
09/04/19
09/05/19
09/06/19
09/07/19
09/08/19
09/14/19
10/04/19
10/05/19
10/09/19
2018
04/16/18
04/24/18
04/25/18
04/27/18
04/28/18
04/29/18
05/06/18
05/07/18
05/08/18
05/09/18
05/15/18
05/16/18
05/17/18
05/28/18
05/29/18
06/03/18
06/07/18
07/20/18
07/21/18
07/25/18
07/26/18
07/27/18
07/28/18
07/29/18
07/30/18
08/01/18
08/02/18
08/03/18
08/23/18
08/24/18
08/26/18
09/18/18
09/19/18
2017
03/31/17
04/06/17
04/07/17
04/24/17
05/01/17
05/06/17
05/07/17
05/13/17
05/14/17
05/15/17
05/24/17
06/08/17
06/09/17
06/10/17
07/31/17
08/01/17
08/31/17
09/01/17
09/02/17
09/03/17
09/05/17
09/12/17
09/13/17
09/14/17
10/01/17
10/13/17
10/18/17
2016
03/26/16
04/03/16
04/04/16
04/05/16
04/07/16
04/22/16
04/23/16
05/04/16
05/05/16
05/06/16
05/07/16
05/13/16
05/14/16
06/06/16
06/07/16
06/08/16
06/09/16
06/18/16
06/27/16
06/30/16
07/01/16
07/22/16
09/21/16
09/28/16
09/29/16
09/30/16
10/07/16
10/10/16
2015
04/30/15
05/01/15
05/02/15
06/02/15
06/03/15
06/04/15
06/05/15
06/06/15
06/07/15
06/08/15
07/29/15
07/30/15
07/31/15
08/01/15
08/02/15
08/03/15
08/10/15
08/11/15
08/12/15
08/13/15
08/14/15
08/15/15
08/24/15
08/25/15
08/26/15
08/27/15
08/28/15
08/29/15
09/20/15
09/21/15
09/22/15
09/23/15
10/10/15
10/15/15
2014
04/09/14
04/19/14
05/02/14
05/29/14
06/11/14
07/05/14
07/06/14
07/24/14
07/25/14
08/14/14
08/25/14
09/22/14
09/24/14
10/25/14
2013
05/06/13
05/07/13
06/03/13
06/07/13
06/08/13
06/29/13
06/30/13
07/01/13
07/02/13
07/03/13
07/04/13
07/05/13
07/13/13
08/16/13
08/17/13
08/18/13
08/19/13
08/28/13
08/29/13
08/30/13
08/31/13
09/13/13
09/25/13
09/26/13
10/24/13
2012
03/24/12
03/25/12
03/26/12
04/06/12
04/07/12
04/08/12
04/09/12
04/18/12
04/19/12
04/24/12
05/14/12
05/17/12
05/18/12
05/21/12
05/22/12
06/01/12
06/02/12
06/22/12
06/23/12
06/25/12
06/26/12
06/27/12
06/28/12
07/29/12
08/07/12
08/08/12
08/20/12
08/21/12
09/10/12
09/11/12
09/20/12
09/21/12
09/22/12
09/23/12
10/03/12
2011
04/12/11
05/05/11
05/06/11
05/17/11
05/26/11
06/02/11
06/03/11
06/05/11
06/06/11
06/07/11
07/01/11
07/05/11
07/06/11
08/01/11
08/18/11
08/19/11
08/20/11
08/21/11
08/25/11
08/26/11
08/27/11
08/28/11
08/29/11
08/30/11
08/31/11
09/06/11
09/07/11
09/08/11
09/09/11
09/10/11
09/11/11
09/12/11
09/15/11
09/16/11
09/20/11
09/21/11
09/22/11
09/23/11
09/24/11
09/30/11
10/03/11
10/04/11
10/11/11
10/16/11
2010
04/03/10
04/26/10
04/28/10
05/02/10
05/03/10
05/04/10
05/05/10
05/26/10
05/27/10
05/28/10
05/29/10
05/30/10
06/22/10
07/10/10
07/16/10
07/17/10
07/31/10
08/01/10
08/02/10
08/03/10
08/11/10
08/17/10
08/23/10
08/24/10
08/25/10
08/26/10
08/27/10
08/28/10
09/05/10
09/14/10
09/15/10
09/16/10
09/29/10
09/30/10
10/01/10
10/02/10
10/06/10
10/07/10
10/08/10
10/09/10
10/15/10
10/16/10
2009
03/17/09
03/19/09
04/03/09
04/14/09
04/21/09
05/04/09
05/20/09
05/21/09
05/28/09
05/29/09
05/30/09
05/31/09
06/04/09
06/05/09
06/06/09
06/23/09
06/24/09
06/25/09
06/26/09
06/27/09
06/28/09
06/29/09
06/30/09
07/01/09
07/02/09
08/13/09
08/14/09
08/22/09
08/23/09
08/29/09
08/30/09
08/31/09
09/01/09
09/02/09
09/03/09
09/06/09
09/07/09
09/27/09
2008
04/19/08
04/29/08
05/17/08
05/18/08
05/28/08
05/29/08
06/18/08
06/19/08
06/20/08
06/21/08
06/22/08
06/23/08
07/01/08
07/02/08
07/16/08
07/17/08
07/18/08
07/19/08
07/20/08
07/21/08
08/03/08
08/04/08
08/13/08
08/14/08
08/23/08
08/24/08
08/25/08
08/26/08
08/27/08
08/28/08
08/29/08
08/30/08
08/31/08
09/05/08
09/06/08
09/07/08
09/26/08
09/27/08
09/28/08
09/29/08
10/01/08
10/02/08
10/09/08
10/10/08
10/19/08
10/20/08
10/25/08
10/26/08
11/01/08
OAD dates for the San Antonio Metropolitan Area
2023
05/18/23
06/07/23
08/17/23
08/27/23
08/30/23
08/31/23
09/01/23
09/02/23
09/03/23
09/12/23
09/18/23
09/19/23
09/28/23
2022
03/25/22
05/06/22
05/26/22
05/27/22
09/09/22
09/10/22
09/13/22
09/14/22
09/15/22
09/28/22
09/29/22
09/30/22
10/01/22
10/02/22
10/03/22
10/04/22
10/05/22
10/06/22
10/07/22
2021
04/25/21
05/03/21
05/06/21
06/16/21
06/18/21
06/19/21
09/23/21
09/24/21
09/25/21
09/26/21
10/06/21
10/07/21
2020
04/24/20
05/01/20
05/18/20
06/08/20
08/03/20
08/20/20
09/30/20
10/06/20
2019
04/09/19
04/26/19
06/08/19
07/24/19
07/25/19
07/26/19
07/27/19
2018
04/28/18
05/06/18
05/07/18
05/17/18
05/28/18
07/26/18
07/27/18
08/01/18
08/02/18
08/03/18
2017
05/06/17
08/09/17
09/12/17
09/13/17
10/01/17
10/02/17
2016
04/23/16
05/06/16
2015
08/02/15
08/27/15
2014
05/29/14
05/30/14
08/14/14
2013
06/03/13
06/29/13
06/30/13
07/03/13
07/04/13
08/16/13
08/17/13
08/18/13
08/19/13
08/30/13
09/25/13
2012
06/09/12
06/24/12
09/20/12
09/21/12
09/22/12
2011
08/27/11
08/28/11
08/29/11
09/07/11
09/08/11
09/09/11
09/10/11
09/11/11
09/12/11
2010
05/28/10
05/29/10
08/27/10
08/28/10
09/05/10
2009
05/29/09
05/30/09
06/05/09
06/25/09
06/26/09
09/01/09
09/02/09
09/07/09
2008
05/18/08
08/14/08
08/26/08
08/31/08
09/06/08
09/20/08
09/26/08
09/27/08
09/28/08
09/29/08
OAD dates for the Tyler-Longview Metropolitan Area
2023
05/31/23
06/02/23
06/07/23
06/09/23
2022
03/27/22
05/07/22
05/12/22
05/28/22
06/18/22
06/19/22
06/21/22
06/23/22
07/10/22
07/11/22
07/13/22
07/14/22
08/19/22
09/16/22
2021
06/19/21
09/25/21
09/26/21
2020
No Issuances
2019
08/15/19
09/06/19
2018
08/03/18
2017
No Issuances
2016
No Issuances
2015
06/06/15
2014
No Issuances
2013
08/30/13
09/06/13
2012
06/27/12
09/22/12
09/23/12
2011
08/22/11
08/25/11
08/26/11
08/27/11
08/28/11
08/29/11
08/30/11
09/10/11
09/11/11
09/12/11
09/28/11
2010
08/27/10
2009
05/30/09
06/26/09
07/01/09
07/02/09
07/23/09
07/24/09
2008
07/17/08
08/14/08
08/27/08
08/30/08
OAD dates for the Victoria Metropolitan Area
2023
No Issuances
2022
No Issuances
2021
06/18/21
2020
No Issuances
2019
No Issuances2018
No Issuances2017
No Issuances2016
No Issuances
2015
No Issuances
2014
No Issuances
2013
No Issuances
2012
No Issuances2011
09/07/11
09/08/11
09/09/11
09/10/11
09/11/11
2010
08/26/10
08/27/10
09/30/10
10/01/10
10/02/10
2009
No Issuances2008
09/06/08
Texas Commission on Environmental Quality Draft 2024 Annual Monitoring Network Plan
The public is invited to comment on the Texas Commission on Environmental Quality (TCEQ) draft 2024 Annual Monitoring Network Plan.
Public comment period begins today
April 17, 2024
The Texas Commission on Environmental Quality (TCEQ) is providing an opportunity for the public to comment on the TCEQ draft 2024 Annual Monitoring Network Plan.
The draft 2024 Annual Monitoring Network Plan (AMNP) provides information on the current TCEQ ambient air monitoring network to demonstrate how Texas is meeting or will meet federal monitoring requirements specified in 40 Code of Federal Regulations Part 58 and its appendices. This document presents the current Texas federal network established to determine compliance with the National Ambient Air Quality Standards and to meet federal monitoring requirements and objectives. This plan is limited to the portion of the TCEQ air monitoring network designed to comply with federal monitoring requirements and supported by federal funding. The plan and assessment are focused on federally required monitoring and do not include a review of state-initiated monitoring conducted in addition to federal requirements. The TCEQ’s robust network of state-initiative monitors supports a variety of purposes, including potential health effects evaluation. A review of these state-initiative monitors is outside the scope of this document and not included.
The TCEQ continues to evaluate additional ambient air monitoring requested during previous Annual Monitoring Network Plan public inspection and comment periods. This document includes the recommended federal monitoring network changes from July 1, 2023, through December 31, 2025.
Historical Annual Monitoring Network Plans for the last five years can be obtained from the TCEQ Air Monitoring Network Plans webpage.
PDF copies of the draft Annual Monitoring Network Plan in English and Spanish:
2024 Draft Annual Monitoring Network Plan (English version)
Proyecto de Plan Anual de la Red de
Seguimiento 2024 (Spanish version)
Instructions for Comments
The draft 2024 Annual Monitoring Network Plan will have a 30-day comment period during which any person may
submit written comments on the draft plan. The comment period closes at midnight on May 16, 2024. Written comment
information, including name, email address and physical address, will become part of the agency’s public record.
Public comments pertaining to the draft 2024 Annual Monitoring Network Plan can be mailed to the contact
below:
P.O. Box 13087
Attention: Holly Landuyt, MC-165
Austin, Texas 78711-3087
Or sent via email to: tceqamnp@tceq.texas.gov
The final 2024 Annual Monitoring Network Plan, including public comments received during the 30-day inspection period, TCEQ responses to the comments, and any appropriate changes based on the received comments, will be submitted to the United States Environmental Protection Agency and posted on the TCEQ webpage on July 1, 2024.