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The Western US has the worst air quality in the world, group says

September 14, 2020. Summarized by summa-bot.

Three major US cities being wreathed in smoke from massive wildfires now have the worst air quality of any big cities in the world, according to a monitoring group.

(CNN)Three major US cities being wreathed in smoke from massive wildfires now have the worst air quality of any big cities in the world, according to a monitoring group.

The air is so full of smoke in Seattle and San Francisco, it's at "unhealthy" levels, according to the Air Quality Index.

"Everyone may begin to experience some adverse health effects," the EPA says in its description of what that means.

The air there is "very unhealthy," meaning that anyone breathing it in, "may experience more serious health effects. "

According to IQAir, a group which tracks global air quality, Portland, Seattle and San Francisco have the worst air quality of any major cities around the world.

But things are even worse outside of the big cities, according to the EPA's own air quality index trackers.

Large swaths of Oregon, Washington state and even parts of British Columbia in Canada are experiencing "hazardous" air quality.

The EPA says the air quality in Salem, Oregon's capital, is so bad that people need to stay indoors and reduce activity levels.

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