https://www.huffpost.com/entry/portland-seattle-air-quality-worst-in-world_n_5f5bc14bc5b6b485080034ad
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9/11/20 at 7:08pm
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The Huffington Post
Author
Dominique Mosbergen
40 words
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Seattle, San Francisco and Vancouver, British Columbia, also have some of the world's worst air pollution because of the deadly wildfires ravaging the West Coast.
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