As spring unfolds across North Texas, longer days and warmer temperatures signal the return of ozone season - a time when air quality can quietly decline, often without visible warning.

Ozone season runs from March through November, when sunlight and heat react with pollutants from vehicles, industry and everyday activities to form ground-level ozone. Unlike the protective ozone layer high above the earth, this type of ozone can harm human health, irritate lungs and worsen respiratory conditions such as asthma.

What makes ozone particularly concerning is that it is invisible. Many people may not realize they are being exposed, yet its effects can be immediate - triggering coughing, shortness of breath or fatigue- and long-term, contributing to chronic respiratory and cardiovascular issues. Children, older adults and those with existing health conditions are especially vulnerable, but even healthy individuals can be affected on high ozone days.

North Texas continues to face air quality challenges, with ozone levels exceeding federal standards in recent years. More than 60 percent of the emissions that contribute to ozone formation come from cars and trucks, making everyday transportation choices a key part of the solution.

The good news is that small changes can make a meaningful difference. Combining errands, reducing trips and being mindful of daily habits can help lower emissions and improve air quality across the region. Staying informed through daily air quality alerts also allows residents to plan outdoor activities more safely.

Improving air quality is a shared responsibility. By making simple, intentional choices, North Texans can help protect their health, support cleaner air and contribute to a more sustainable and resilient community.

For more information and to sign up for air quality alerts, visit AirNorthTexas.org.