Millions of Texans were advised to take steps to help reduce pollution as the National Weather Service (NWS) issued an air quality alert for the Dallas-Fort Worth area.
Why It Matters
The Environmental Protection Agency (EPA) cautions that people most at risk from breathing air containing ozone include those with asthma, children, older adults and people who are active outdoors.
The agency says health problems caused by ozone may include coughing, difficulty breathing, and inflamed and damaged airways.
What To Know
An air quality alert published by the NWS said the Texas Commission on Environmental Quality had issued an ozone action day for the Dallas-Fort Worth area for Sunday.
“Atmospheric conditions are expected to be favorable for producing high levels of ozone air pollution in the Dallas-Fort Worth area on Sunday,” read the alert.
It advised that residents in affected areas could help prevent pollution by taking actions including ride sharing, walking, biking, avoiding drive-thru lanes, and keeping vehicles properly tuned.
Newsweek reached out to the Texas Commission on Environmental Quality for comment via email, outside of standard working hours on Sunday.
Additional air quality alerts spanned parts of Colorado, Wyoming, Idaho, Oregon, and Arizona on Sunday.
In Colorado, air quality alerts were issued for multiple counties due to wildfire smoke.
A notice for southeastern Dolores and northern Montezuma Counties warned that locations near the Stoner Mesa Fire, including Highway 145 and the Stoner area were experiencing heavy smoke, which was expected to continue through Sunday morning.
An alert was also issued for western Eagle and eastern Garfield Counties due to smoke from the Derby Fire.
“If smoke is thick or becomes thick in your neighborhood, you may want to remain indoors,” read the alerts, which were in force until 9 a.m. Sunday at the time of writing. “This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults.”
According to a Watch Duty map, the Stoner Mesa and Derby Hires had burned 10,197 acres and 4,312 acres, respectively.
In Wyoming, an air quality alert impacted the Upper Green River Basin and Western Wind River Mountains, including the towns of the towns of Pinedale, Big Piney/Marbleton, Hoback, and Farson.
“Smoke from the Dollar Lake Wildfire continues to be observed across portions of western and central Wyoming. The smoke is limiting visibilities at times, especially at higher elevations in the Wind River Mountains,” said the alert. This fire was at 8,660 acres, according to Watch Duty.
Wildfire smoke had also prompted air quality alerts for the following locations in Idaho, and were in effect until Monday morning:
- Clearwater County
- Idaho County
- Latah County
- Nez Perce County
- The Nez Perce Reservation.
Additionally, air quality alerts in Oregon warned of both wildfire smoke and ozone impacts and affected areas including Lane County and the Portland metropolitan area, respectively, while an alert for the Phoenix metropolitan area in Arizona in effect through Sunday warned of potentially unhealthy concentrations of ozone.
What People Are Saying
AccuWeather meteorologist Brandon Buckingham told Newsweek previously: “Ozone is a secondary pollutant, meaning it’s not emitted directly from sources, but is formed through chemical reactions. These reactions require sunlight and higher temperatures, making warmer months more prone to ozone formation. When air is stagnant, pollutants don’t get dispersed, allowing ozone to build up to unhealthy levels.”
What Happens Next
Regular forecast updates are issued by the NWS on its website.
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