Smoke from Canadian wildfires continues to trigger air quality alerts in U.S. states, with health officials warning people, especially children, the elderly or those with respiratory conditions, to limit their time outdoors.
The Federal Aviation Administration on Thursday imposed a ground stop on all flights into New York City’s LaGuardia Airport due to low visibility. The Air Quality Index spiked to “hazardous” levels in Philadelphia, where everyone was urged to stay indoors. And employees at the National Mall in Washington DC were encouraged to scale back all outdoor activities.
Updated forecast maps showed the lingering smoke slowly moving south. And while conditions are expected to improve on the Northeast and Atlantic coasts on Thursday, they are likely to worsen in Pittsburgh, Cleveland and Detroit.
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