Photos: Fires create orange skies, hazardous pollution
An Associated Press analysis shows that wildfires on the U.S. West Coast have exposed millions of people to hazardous pollution levels.
Wildfire smoke
This Sept. 9, 2020, file photo shows a dark orange sky above Crissy Field and the city of San Francisco due to heavy smoke from wildfires. An Associated Press analysis of air quality data shows 5.2 million people in five states were hit with hazardous levels of pollution for at least a day. (AP Photo/Eric Risberg)
Orange sky
In this Sept. 9, 2020, file photo, an orange sky is seen over Columbus Avenue, the Transamerica Pyramid and Salesforce Tower due to heavy smoke from wildfires in San Francisco. (AP Photo/Eric Risberg)
Golden Gate Bridge
In this Sept. 9, 2020, file photo, people stop near Fort Point by the Golden Gate Bridge to take pictures of an orange sky caused by heavy smoke from wildfires in San Francisco. (AP Photo/Eric Risberg)
Wildfire smoke
In this Sept. 12, 2020, file photo, smoke from wildfires in Oregon and California create hazy skies as the sun is seen above the Washington state Capitol in Olympia, Wash. (AP Photo/Ted S. Warren)
T-Mobile Park in Seattle
In this Sept. 14, 2020, file photo, smoke from wildfires in Oregon and California create hazy conditions at T-Mobile Park in Seattle during a baseball game between the Seattle Mariners and the Oakland Athletics. (AP Photo/Ted S. Warren)
Seattle
In this Sept. 14, 2020, file photo, downtown Seattle is barely visible through wildfire smoke near CenturyLink Field, right, as viewed from an upper deck of T-Mobile Park, home of the Seattle Mariners baseball team. (AP Photo/Ted S. Warren)

