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Ozone Data

Current and historical measurements of ozone air pollution in Texas.

Current Texas Ozone Levels

Map showing latest ozone levels in metropolitan areas across Texas.

Daily Maximum Eight-Hour Ozone Averages

Maximum eight-hour ozone averages measured daily from yesterday 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.

Four Highest Eight-Hour Ozone Concentrations

Calculated from TCEQ monitoring site data available from today back to 1997.

High One-Hour Ozone Values

Measurements of high one-hour ozone concentrations.

High Ozone in Your Metro Area

Table that summarizes high one-hour averages greater than 125 ppb and eight-hour ozone averages greater than 76 ppb in Texas metropolitan areas.

Ozone Hourly Averages (and Other Air Pollutants)

The hourly average concentration of ozone measured an hour ago back to 1997.

Peak Daily One-Hour Ozone Averages

Maximum one-hour ozone averages measured daily from yesterday back to 1996.

Texas Cities' Compliance with Eight-Hour Ozone Standard

Report for the fourth-highest daily maximum eight-hour average ozone concentrations in Texas Metropolitan areas.