This page is the news from the Canada wildfires for Wednesday, June 7. For the latest and updated information on the wildfires, smoke and air quality across the US, visit our live updates file for Thursday, June 8.

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Smoke from wildfires in Canada has drifted down into the U.S. on Wednesday, leading to extremely poor air quality across much of the eastern U.S., with alerts in effect all the way from New England to the Southeast. In all, more than 100 million Americans were affected by air quality alerts, the Environmental Protection Agency said.

In fact, New York City’s air quality was the worst among the world’s major cities for a time Tuesday morning, according to IQAir, an air quality monitoring website. As of Wednesday afternoon, IQAir said New York City’s pollution was fourth-worst in the world, behind New Delhi, India; Dhaka, Bangladesh; and Toronto.

New York City Mayor Eric Adams said that the city’s air quality index on Wednesday climbed up to 484 out of a scale of 500, more than double the level that was reached Tuesday night. He said the city’s air quality health advisory has been extended through Thursday night.

Due to the unhealthy air, Major League Baseball postponed Wednesday night’s games in New York and Philadelphia. It’s the first such postponement since September 2020, when two games between the Seattle Mariners and the San Francisco Giants were moved from Seattle to San Francisco due to wildfire-related smoke.

Also, New York Gov. Kathy Hochul tweeted Wednesday that the state is making 1 million N95 masks available to the public due to the ongoing poor air quality from the Canadian wildfires.

“We are living in the era of extreme weather. Last summer, New York experienced extremely dry conditions and we had wildfires pop up across the state,” Hochul said. “While continuing our fight against climate change, we need to recognize that this is a new reality we have to be prepared for.”