On Sunday evening, Spokane's air quality fell further and was sitting at 303 as of 6:15 p.m., according to the Spokane Regional Clean Air Agency.
"Wildfire smoke is a natural part of our environment but it is important to be mindful that exposure to smoke may affect your health".
The Department of Ecology has advised that children, the elderly and those with respiratory illnesses stay indoors, or limit outside activity in areas classified as hazardous.
Air quality is expected to get worse as smoke builds up with visibility being affected.
Hayden said to deal with the poor air, he drinks lots of water and wears a mask.
The smoky pollution came from wildfires in British Columbia and the Cascade Mountains, clouding a season that many spend outdoors. Previous year saw several days of hazardous air quality in September, with Spokane pinned between wildfires to the north, south and east.
A few rounds of dry cold fronts move through this week, so we won't see any showers with those- just MUCH cooler temperatures.
"Most of the summer we've kept our onshore winds, even though it's been hot, which kept the smoke out of here until about two weeks ago", said Marriott.
The National Weather Service in Seattle has issued an Air Quality Alert for Western Washington, as wildfire smoke returns to the Puget Sound.
If you're anxious about the air quality in your home and don't already own an air purifier, you can build one for less than $20 if you have a box fan.
And if that wasn't bad enough, ash started falling from Tacoma to Seattle and beyond Monday night.
MPCA meteorologists say the smoke-related alerts are also unusual in that they're not being attributed to nearby fires - they're blazes in British Columbia.