New report ranks the cleanest and most polluted U.S. cities

The new report evaluated air quality in different parts of the country by measuring the presence of ozone and particle pollution in the atmosphere.

• Apr 22

El Paso and LA among most polluted U.S. cities in 2025, report says

El Paso, Texas, and Los Angeles, California, had some of the worst air pollution in the U.S. last year, according to a new report.

• Mar 25

Joppa air pollution levels 2-3 times higher than the rest of Dallas, new study shows

"You can actually see it, it's like white sometimes," said Joppa resident Ageda Alvarado. "We barely wash our cars and then the following day, there's like this little type of dirt, film, or something on top of it."

• Oct 19, 2023

Air quality has been horrible this year — and not just due to wildfire smoke

Smoke from wildfires is not the only reason for poor air quality this year. It turns out, those wildfires created another kind of pollution: Ozone.

• Oct 12, 2023

Has pollution from fireworks made air quality worse?

Millions of Americans woke up the morning after Independence Day celebrations to air quality advisories across the U.S.

• Jul 5, 2023

'It takes more out of you': Pollution brings unhealthy air quality to North Texas

According to the American Lung Association, the DFW Metroplex had the 18th worst ozone pollution in the U.S. out of 227 metropolitan areas.

• Jun 8, 2023