Those who typically walk or jog to work are advised to consider taking a bus or Skytrain instead until the air quality improves.
The Minnesota Department of Health said in a 2015 report that air pollution like that from wildfires - specifically, small particulates - contributed to more than 2,000 deaths and 600 emergency room visits in 2008 alone.
"The trend is clear. It's going to be somewhere".
The Federal Aviation Administration said planes bound for the Sea-Tac International Airport, Seattle's main airport, may be delayed because of low visibility.
Air quality monitoring stations in Yakima, Toppenish, Sunnyside and White Swan are all reporting air quality as "hazardous".
The Puget Sound Air Agency said no outdoor burning is allowed as of 5 p.m. Monday in order to reduce any additional harm from excess air pollution.
Those with chronic underlying medical conditions are recommended to avoid strenuous exercise and time outdoors until the advisory is lifted.
Malcolm Turnbull: Australian PM survives leadership challenge
Some government lawmakers want Home Affairs Minister Peter Dutton , a close ally of Abbott, to challenge Turnbull's leadership. Disquiet with Turnbull has been building in recent months, with the government trailing Labor in 38 consecutive opinion polls.
Pepsi to buy Israel’s SodaStream for $3.2 billion
The PepsiCo chief executive announced Monday that Pepsi is buying SodaStream, one of the world's top sparkling water brands. The acquisition signals Pepsi's awareness that more people are shunning traditional soda drinks for healthier offerings.
India's flood-hit Kerala faces huge clean-up, fear of disease
Indian Navy's Operation Madad has been scaled up to meet the increasing requests for rescue from more parts of flood-hit Kerala . Many Odiya workers are engaged in construction work and employed by plywood companies in Kochi and surrounding areas.