Wildfire smoke keeps air quality poor in dozens of U.S. cities

Wildfire smoke has spread across parts of the United States, leaving dozens of cities with poor air quality. The smoke has turned skies hazy and orange in affected areas. Officials have urged residents to stay indoors until conditions improve. Forecasts indicate the smoke will continue to affect visibility and breathing conditions through at least Friday.

Current conditions Air-quality monitors in the impacted cities show elevated levels of fine particulate matter. Health departments have advised sensitive groups, including children and older adults, to limit outdoor activity. No specific cities were named in the report, but the pattern covers both western and central parts of the country.

Until then, residents are asked to follow local air-quality guidance.