Air is a dynamic limiting factor.
Texas Commission on Environmental Quality
The Texas Commission on Environmental Quality (TCEQ) is the environmental agency for the state. Detailed subject indexes include Air, Water, and Waste.
Air Quality Index Data
Updated hourly, tabular data is collected from TCEQ air monitoring sites, local agencies, and private monitoring networks. Site specific information is available for each metropolitan area by clicking on the metropolitan area name.
Animated Ozone Concentrations
Animations of the ozone concentrations measured in the Dallas-Fort Worth (TCEQ Region 4), Beaumont-Port Arthur (TCEQ Region 10), Houston-Galveston-Brazoria (TCEQ Region 12), and San Antonio (TCEQ Region 13) areas are available by clicking on the particular region below. These animated images are constructed from data measured at the TCEQ's continuous air monitoring stations and includes data from local governments and private monitoring networks. The concentrations are calculated using a statistical algorithm and are based on a running one-hour average, with six concentration values being calculated each hour (one every 10 minutes).
more to be added...