States and cities have issued advisories urging people to stay inside if possible to avoid unhealthy air quality. Jurisdictions are typically basing their decisions on the Environmental Protection Agency’s Air Quality Index. What exactly does that mean?
Several states and cities have issued advisories urging people to stay inside if possible to avoid the dangers of unhealthy air quality. Jurisdictions are typically basing their decisions on the
The EPA likens the AQI to a weather forecast that can help you plan outdoor activities. There are a couple things to keep in mind, however. For one thing, the AQI isn't fully transparent on which pollutant is the biggest contributing factor to its values at a given time. The EPA uses a formula to calculate AQI values — it doesn't simply add up the impact of each pollutant.that typically ranges from zero to 500 to denote air quality.
A woman jogs with a dog along the Hudson River shortly after sunrise, as haze and smoke caused by wildfires in Canada hang over the Manhattan skyline, in New York City, New York, U.S., June 7, 2023. REUTERS/Mike Segar Between 201 to 300, the AQI is at code purple. This denotes a health alert, the agency says. There's an increased risk of negative health effects for everyone. Once the index reaches 301, the AQI will be at a code maroon. That means the air quality is hazardous and constitutes a “health warning of emergency conditions” as everyone is more likely to be affected.
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Photos: Wildfire smoke turns sun to reddish orb over NortheastAir quality is considered unhealthy when the Air Quality Index reaches 100 or greater. Wednesday morning, Philadelphia’s AQI was 212.
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Canadian wildfire smoke pushes NYC residents indoors, city briefly had world's worst air qualityNew York City's air quality rating briefly ranked the worst of any city in the world on Tuesday, according to the IQAir World Air Quality Index.
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Canada wildfire smoke pushes NYC residents indoors, FAA reroutes flightsNew York City's air quality rating briefly ranked the worst of any city in the world Tuesday, according to the IQAir World Air Quality Index.
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Air quality alert issued for parts of central OhioAir quality will pose a risk for those sensitive to increased air pollution in parts of central Ohio on Tuesday.
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