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Air Monitoring

The latest forecast for air quality conditions in Texas' metropolitan areas.
Air Pollution Events
Folder for the air pollution event web pages to be organized by year
Air Quality Index: Table of Today's Pollution Levels in Texas' Metro Areas
How clean is the air in your metropolitan area? Use this table to see your area's ranking compared to the EPA's Air Quality Index.
Current PM-2.5 Levels - Soot, Dust, and Smoke in Your Metro Area
Map showing latest particulate matter (PM) 2.5 levels in metropolitan areas across Texas.
Current Texas Ozone Levels
Map showing latest ozone levels in metropolitan areas across Texas.
Hourly Air Pollution Data by Day, Month, or Year
Search for air quality data collected on a specific day, during a particular month, or a definite year and at a specific TCEQ air monitoring site.
Hourly Air Pollution Data by Pollutant
Search for measurements of particular air pollutants found at TCEQ monitoring sites statewide.
Auto GCs
Information about Auto GCs in the state of Texas.
Historical Pollutant and Weather Data
Air pollution and meteorological data from the TCEQ, local Texas monitoring networks, and the EPA since 1972.
Web Camera Images of West Texas
Images showing visibility and meteorological conditions in El Paso and the Franklin Mountains.
Texas Cities' Compliance with Eight-Hour Ozone Standard
Report for the fourth highest daily maximum eight-hour average ozone concentrations in Texas Metropolitan areas.
Four Highest Eight-Hour Ozone Concentrations
Calculated from TCEQ monitoring site data available from today back to 1997.
Peak Daily One-Hour Ozone Averages
Maximum one-hour ozone averages measured daily from yesterday back to 1996.
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.
Daily Maximum Eight-Hour Ozone Averages
Maximum eight-hour ozone averages measured daily from yesterday back to 1997.
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.
Texas Meteorological Satellite Images - MODIS Cuts
Moderate-Resolution Imaging Spectroradiometer satellite images of Texas.
Real-Time Winds Aloft
Current measurements of winds in the lower atmosphere, which help determine the movement of air pollution across Texas.
Beaumont, Southeast Texas Regional Airport Current Wind Plot
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.
Dallas-Fort Worth, Cleburne Airport Current Wind Plot
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.
El Paso-Socorro Radar Current Wind Plot
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.
Air Trajectories
Trajectories that show the movement of air over metropolitan areas of Texas for the past 30 days. Use to better understand the behavior and potential impact of air pollution..
Wind Roses
Illustrations of wind direction movement at particular Texas cities from 1984 to 1992, used to help predict long term air quality.
Monitoring Sites
Information about TCEQ air monitoring sites.
Airborne Particulates
Table summarizing the measured high 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.
Ozone: The Facts
Sound science and targeted regulations have greatly reduced ozone concentrations in Texas cities and across the nation.
Air Quality Forecast and Ozone Action Day E-Mail Alerts
Sign up to receive the Today's Texas Air Quality Forecast and/or Ozone Action Day e-mail alerts for several metropolitan areas throughout Texas.
Voluntary Steps in Helping Prevent Ozone
Actions that citizens, businesses and industries can take to help prevent ozone pollution.
Interpret the AQI Rating
Information about interpreting the EPA's Air Quality Index rating and scale.
Particulate Matter Data Proposed Exceptional Event Flag Demonstrations
Demonstration documents supporting the proposed exceptional event flags for particulate matter data collected during exceptional events in Texas for 2010, 2011, and 2012.
La Porte Current Wind Plot
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.
Today's Texas Air Quality Forecast
The latest forecast for air quality conditions in Texas' metropolitan areas.
TCEQ Monitoring Network Plans and Lead Waiver Requests
Historical air-monitoring network plans, lead waivers, and EPA responses.
Current PM-2.5 Hourly Averages by Region
The TCEQ’s monitoring of particulate matter 2.5 micrometers or less in diameter, measured at each region.
Current Ozone Hourly Averages by Region
The TCEQ’s monitoring of ozone, measured at each region.
Images
CoverTexas Climatology 1974-2003
Average precipitation and snowfall, average minimum and maximum temperatures, and highest and lowest temperatures recorded across the state.