Air Quality Advisory issued for Houston, Galveston, and Brazoria Counties on Wednesday

Here’s what this means and what you can do to protect your health

No description found

HOUSTON – The Texas Commission on Environmental Quality is predicting heightened levels of ground-level ozone for your day on Wednesday.

This has prompted an Air Quality Advisory for Houston, as well as Brazoria County and Galveston County.

Harris County, Brazoria County and Galveston County are included in the Air Quality Advisory (Copyright 2025 by KPRC Click2Houston - All rights reserved.)

Here’s what this means:

Due to our weather pattern - high-pressure is situated right over Texas, and we have the full power of the sun above. Industrial and vehicle emissions, chemical solvents, and gasoline vapors that are emitted into the air, react to the sunlight.

This chemical reaction develops ozone in the troposphere - the lowest portions of the atmosphere. This is commonly known as “unhealthy ozone.”

So, here are some tips on what you can do to help prevent ozone pollution and keep yourself healthy:

  • When driving, try to limit idling in your car, as well as carpool when you can.
  • If you are able to, walk or ride a bicycle to your destination.
  • Bring lunch with you to work.
  • If you have upper respiratory conditions such as asthma and COPD, you can either exercise inside or try to limit your time outside.
Here's what you can do to mitigate the chance of ground-level ozone (Copyright 2025 by KPRC Click2Houston - All rights reserved.)

We could see an additional advisory issued for Thursday, as we’re not expecting a change in our weather pattern in the extended forecast.

Heightened levels of ground-level ozone are expected Wednesday and Thursday due to the weather pattern (Copyright 2025 by KPRC Click2Houston - All rights reserved.)

About the Author

Amanda Goluszka is a meteorologist at KPRC 2 currently filling in for Meteorologist Caroline Brown. Hailing from Chicago and having studied at College of DuPage and Texas A&M University, she's focused on becoming a full-time broadcast meteorologist.