• TCEQ Air Quality Monitoring Sites

    This layer contains TCEQ's currently active Air Quality Monitoring stations that operate at "fixed" sites. A fixed site is a station that has recorded data for over 90 consecutive days at the same location. All source data for this layer comes from the Air Quality System (AQS) database, which is maintained by the Monitoring Operations Division of TCEQ's Office of Air Quality. All air monitoring stations classified as "inactive" have been removed from the layer. For information on these older stations, please contact the Monitoring Operations Division. Since the previous version of this layer was released in 2003, the coordinates for several air monitoring stations have been improved using GPS equipment

    Data and Resources

    Additional Info

    Field Value
    Author TCEQ
    Maintainer TCEQ
    Last Refreshed See Metadata