A fog-like mist in northern Iceland may be connected to forest fires in Canada, with meteorologists suspecting that diluted smoke from the fires has reached the country due to prevailing winds blowing from west to east.
The air quality index, a U.S. Environmental Protection Agency metric for air pollution, exceeded a staggering 400 at times in Syracuse, New York City and Pennsylvania’s Lehigh Valley. A level of 50 or under is considered good; anything over 300 is considered “hazardous,” when even healthy people are advised to curtail outdoor physical activity.
A haze visible through Southcentral Alaska on Wednesday was caused by smoke from fires burning in Siberia that began flowing into Alaska in early July.
Smoke from wildfires in Siberia drifted to Alaska last year as well, according to the National Weather Service, but Alaska already had hazy skies from local wildfires.