As the wildfires continue to scorch the Western United States, the gigantic plumes of smoke are again traveling east. Almost all of Oregon is covered in thick layers of unhealthy smoke.

On Sunday, the air quality index in Oregon approached “hazardous” across much of the state.

According to NBCNews, this season, the wildfires have burned more than 7,000 square miles, equivalent to the land area of New Jersey.

The National Interagency Fire Center says that  87 large fires that have burned more than 4.6 million acres in 10 states.

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