U.S. cities have the worst air quality in the world right now—here’s how to stay safe - Peer2Peer

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U.S. cities have the worst air quality in the world right now—here’s how to stay safe

Jul 17, 2026

Wildfire smoke may be as much as 10 times more dangerous than other forms of air pollution, research suggests

https://www.scientificamerican.com/article/u-s-cities-have-the-worst-air-quality-in-the-world-right-now-heres-how-to-stay-safe/

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