Why some of the US has the most polluted air in the world right now

Photo caption: Smoke shrouds the sun as it rises behind the skyline of lower Manhattan in New York City on June 7, 2023. Photo credit: Gary Hershorn / Getty Images. Article by Rachel DuRose. Vox – updated June 8, 2023.

New York City has had the worst air quality of any major city in the world for much of this week, according to air quality technology company IQAir. Now this smoke is spreading over other major cities, like Philadelphia, Washington, DC, and Detroit, and will soon blanket swaths of the southern and western US. […]

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