Seeping under doors, bad air from West’s fires won’t ease up

A sign on a pump at a gas station on Interstate 5 in Marion County, Oregon, announces that it is closed on Friday, Sept. 11, 2020. People across the West struggled under acrid-yellowish green smog from raging wildfires that seeped into homes and businesses, sneaked into cars through air conditioning vents and caused the temporary closure of iconic locations such as Powell’s Books and the Oregon Zoo. And forecasters say the putrid air, measured as the worst on the planet, could last well into the week. (AP Photo/Gillian Flaccus)

A worker cleans grass at Alamo Square Park as smoke from wildfires and fog obscures the skyline above the “Painted Ladies,” a row of historical Victorian homes, in San Francisco, Monday, Sept. 14, 2020. (AP Photo/Jeff Chiu)

PORTLAND, Ore. — Dangerously dirty air spewing from West Coast wildfires is seeping into homes and businesses, sneaking into cars through air conditioning vents and preventing people already shut away because of the coronavirus pandemic from enjoying a walk or trip to the park.