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Thousands Urged Indoors: Hazardous Air Grips Nation
29 Jan
Summary
- Hazardous air quality prompts indoor warnings across the US.
- PM2.5 levels reach critical levels in California, Midwest, and Northeast.
- Winter inversions trap pollutants, creating recurring health hazards.
Americans across California, the Midwest, Appalachians, and the Northeast were urged to remain indoors on Thursday due to hazardous air quality. Sharply elevated PM2.5 levels, microscopic particles from vehicles, industry, and wood burning, created significant health risks. Pinehurst, California, recorded an AQI of 463, while other areas saw readings ranging from unhealthy to hazardous.
These air quality spikes are a recurring winter issue. Cold snaps and calm weather create inversions that trap pollutants, particularly in geographically enclosed areas like California's Central Valley. This phenomenon leads to the buildup of emissions from traffic, farming, and residential heating, especially during cold nights.
Health experts warn that prolonged exposure to these PM2.5 particles can lead to lung inflammation, worsen respiratory and cardiovascular conditions, and increase the risk of infections. Residents are advised to monitor air quality tools and limit outdoor activity during periods of poor air quality.
