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Air quality issues facing Oregon
Portland family leaves Oregon because of air pollution
DEQ issues air quality advisory for 6 Oregon counties as wildfire smoke lingers
Most of Oregon is under an air quality advisory because of wildfire smoke
Air quality expected to get worse
Wildfires creating air quality issues in Portland
Air quality from Oregon wildfires deemed a public health emergency
The National Weather Service answers questions about air quality in Oregon
Portland region tops the charts for worst air quality in the world, doctors say stay inside
Trying to stay healthy amid poor air quality
More people seeking medical care and advice for breathing issues amid hazardous air quality
Wildfire smoke affects air quality in Oregon
