What is the air quality in Houston today?

The current Air Quality Index (AQI) in Houston, TX is 51, which is considered moderate. Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Is it safe to exercise outside in Houston?

With an AQI of 51, outdoor exercise is generally safe for most people in Houston. However, sensitive individuals should monitor their symptoms.

What causes poor air quality in Houston?

Air quality in Houston can be affected by vehicle emissions, industrial activity, weather patterns, and seasonal factors like wildfires or pollen. The dominant pollutant today is PM2.5.

Air Quality in Houston, TX

Moderate

Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Health Advisory

Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

About Air Quality in Houston

The Air Quality Index (AQI) in Houston, Texas is currently 51, which is considered moderate. The dominant pollutant today is Fine Particulate Matter.

Who Should Be Concerned?

People with asthma or respiratory conditions
Children and older adults
People who work or exercise outdoors
Anyone with heart disease

How to Protect Yourself

Check the AQI before planning outdoor activities
Limit strenuous outdoor exercise when AQI is unhealthy
Keep windows closed and use air conditioning with a clean filter
Consider using a portable air purifier with HEPA filter
Wear an N95 mask during very poor air quality conditions

Common Pollutants

PM2.5: Tiny particles less than 2.5 micrometers that can penetrate deep into lungs and bloodstream.
PM10: Particles between 2.5 and 10 micrometers, including dust, pollen, and mold.
Ozone: A harmful gas created by chemical reactions between pollutants in sunlight.
NO2: A reddish-brown gas from burning fuel, can irritate airways.
CO: A colorless, odorless gas from incomplete combustion.
SO2: A gas from burning fossil fuels, can affect breathing.

Air Quality in Houston, TX

Moderate

Health Advisory

5-Day Air Quality Forecast

Current Conditions

AQI Scale

About Air Quality in Houston

Who Should Be Concerned?

How to Protect Yourself

Common Pollutants

Other Cities in Texas

Health Resources

Improve Indoor Air Quality