Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.

An air stagnation advisory has been issued for large portions of Idaho and Oregon, warning residents of stagnant air conditions that could trap pollution near the ground and lead to poor air quality.

Forecasters are warning that air pollution may become trapped and adversely affect humans, due to weather conditions in the U.S.

Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.

The National Weather Service has issued an air stagnation advisory for the lower Columbia region, Portland metro area and Willamette Valley.

PORTLAND, Ore. (KTVZ) -- The Oregon Department of Environmental Quality issued an air quality advisory Wednesday for Klamath County, southern Lake County, and La Pine due to stagnant air ...

Efforts to decrease the use of wood stoves and wood-burning fireplaces in Portland seem to have had little effect, according to preliminary results from a new state survey.

PORTLAND, Ore. — Applications are currently open for free air conditioning units available to Portland's low-income residents, with priority given to seniors and those with health concerns.

Temperatures are starting out very cold Wednesday morning across the metro area. Most locations are in the lower to mid 20s with some outlying areas in the upper teens, as the cold air continues it… ...

Warning that poor air quality could cause issues for people with respiratory problems, the National Weather Service office in Portland has issued an air stagnation advisory for the mid-valley.

The air stagnation advisory in place for the mid-valley has been extended through at least noon on Tuesday. The National Weather Service office in Portland says air quality may deteriorate each ...