• AQI Loop
  • AQI
  • Ozone AQI
  • PM AQI
AQI Animation - http://www.epa.gov/airnow/2013/20130627/anim_aqi_houston_tx.gif
Peak AQI - http://www.epa.gov/airnow/2013/20130627/peak_aqi_houston_tx.jpg
Peak Ozone (8-hour) - http://www.epa.gov/airnow/2013/20130627/peak_o3_houston_tx.jpg
Peak Particles PM<sub>2.5</sub> (24-hour) - http://www.epa.gov/airnow/2013/20130627/peak_pm25_houston_tx.jpg
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
Local Air Quality Resources
Ozone Warnings
State Air Quality Resources
American Lung Association (ALA) of Texas
Inter-Tribal Environmental Council
Outdoor Burning in Texas
Texas Air Quality Index Program
Texas Commission on Environmental Quality (TCEQ)
Texas Commission on Environmental Quality (TCEQ) - Air Quality
Texas Commission on Environmental Quality (TCEQ) Contacts
Today's Ozone Forecasts
Daily AQI
Thursday, June 27, 2013
Particles PM2.5
Particles PM10 Not Available
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Note: data are available beginning August 1, 2010.

Other Information
Current Conditions and Forecasts
Air Quality Maps Archives (by region)