On Monday evening, meteorologists at the National Weather Service center in Upton, New York, noticed something unusual in the satellite imagery. A thick wall of smoke from a series of wildfires that had broken out across Nova Scotia was moving south toward the Empire State. After examining the wind patterns and speed of the plume's movement, the meteorologists forecast it would enter the country's most densely populated city by the following morning. Sure enough, New Yorkers awoke on Tuesday to gray air that thickened over the course of the day. By evening the city smelled like a bonfire. By the following afternoon, the air had turned orange.
When Stanford researchers crunched the numbers, they found that Wednesday, June 7 was the worst day of pollution from wildfire smoke in the nation's history, in terms of the average American's smoke exposure. Air quality plummeted across the Eastern United States, affecting cities from Charlotte to Philadelphia to Chicago. But in no city was the air worse than the Big Apple. The air quality index, or AQI, in parts of Brooklyn reached 484 — nearly double San Francisco's highest hourly reading during California's 2020 fire season. In a press conference on Wednesday afternoon, New York Governor Kathy Hochul called it "a health and environmental crisis," and urged residents to take precautions. New York City Mayor Eric Adams said the situation was "alarming and concerning," and told people to mask up and stay indoors.
