Air Quality

Salt Lake City's west side has worse air quality than the east side — for reasons that range from a mistake made in the 1890s and decades of redlining.

New research from the University of Colorado Boulder shows a concerning link between air pollution and brain development.

A new analysis of air pollution across the country reveals a wide range throughout the Mountain West.

In 2014, Stericycle was fined $2.3 million for emissions violations.

KDNK's news team brings you local and regional news from the Mountain West.

While the Pine Gulch and Grizzly Creek Fires continue to grow in size, what about the smoke they're creating? Well, that can’t be measured in acres.…

A statewide network of parents advocating for Colorado’s outdoor quality of life will testify tomorrow at the Air Quality Control Commission meeting in…

Some panel members said they don't agree that breathing sooty air can cause premature death. The panel's draft recommendations to the EPA would change how it assesses the dangers of air pollution.

The Colorado Automobile Dealers Association is going to court to try and put the brakes on regulations that will require all new cars sold in the state...

This map shows the size of the fire, pre-evacuation areas, and the smoke forecast.