An air quality advisory has been issued Wednesday afternoon for Anchorage and Eagle River, as a National Weather Service fire warning is set to take effect Thursday for the Matanuska Valley.

In a statement from the city’s Department of Health and Human Services, spokesperson Jennifer Ruggles says unhealthy levels of airborne particulate are present in local skies.

“Exposed sediment and traction material on roads and parking lots easily becomes airborne due to traffic during cold, dry weather,” Ruggles wrote. “Dusty conditions may continue as long as current weather patterns persist. Dust concentrations are expected to be highest along major roadways, especially during and following peak traffic hours.”

According to Ruggles, people with severe lung disease should stay indoors, while those with heart and lung ailments should avoid dusty areas including major traffic corridors.

The Anchorage advisory comes a day after a similar advisory from the Mat-Su Borough, due to high winds. Earlier Wednesday, the NWS issued a fire warning from 6 p.m. Thursday to midnight Friday, with winds forecast from 40 to 65 mph and gusts possibly as fast as 80 mph.

More information on the air quality advisory is available from the city's hotline at 343-4899.