Wildfire smoke stemming from Canada is triggering air quality health advisories to various areas of the country, including New York.
The wildfire smoke, descending from eastern Canada, is continuing to make its way into the U.S., particularly affecting the Empire State.
Some areas — Long Island, New York City Metro, Eastern Lake Ontario, Central New York and Western New York — are under an air quality health advisory as air quality conditions are expected to worsen Wednesday.
The Eastern US and Central Canada are suffering through one of their worst wildfire smoke events in recorded history.
New York City and Toronto have among the top 7 worst air qualities of any major city on Earth. pic.twitter.com/xt3JpyI7XB
— Colin McCarthy (@US_Stormwatch) June 6, 2023
Per the advisory:
The Wednesday, June 7, Air Quality Health Advisory regions consist of the following: Long Island which includes Nassau and Suffolk counties; New York City Metro which includes New York City, Rockland, and Westchester counties; Eastern Lake Ontario which includes northern Cayuga, Jefferson, Monroe, Oswego, and Wayne counties; Central New York which includes Allegany, Broome, southern Cayuga, Chemung, Chenango, Cortland, Delaware, southern Herkimer, Livingston, Madison, Onondaga, Oneida, Ontario, Otsego, Tioga, Tompkins, Schuyler, Seneca, Steuben, and Yates counties; and Western New York which includes Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans, and Wyoming counties.
“DEC and DOH issue Air Quality Health Advisories when DEC meteorologists predict levels of pollution, either ozone or fine particulate matter are expected to exceed an Air Quality Index (AQI) value of 100,” the advisory continues, identifying the pollutant as “Fine Particulate Matter.”

The Statue of Liberty seen through smoke as wildfires in Canada cause hazy conditions in New York City on June 7, 2023. (ANGELA WEISS/AFP via Getty)
“Fine particulate matter consists of tiny solid particles or liquid droplets in the air that are 2.5 microns or less in diameter,” the advisory reads, citing short-term health issues that can arise from exposure. That includes ear, nose, and throat irritation as well as sneezing, coughing, and shortness of breath. It also noted it can worsen existing health conditions.
Further, the advisory urges New Yorkers to take steps to reduce pollution, urging them to take mass transit, use fans to circulate air rather than an air conditioner, and “limit use of household appliances.” It remains unclear how doing those things would reduce the actual problem at hand: Reducing wildfire smoke in the area.
NEW YORK CITY: Prepare for air qualities WORSE than yesterday.
Likely in the code red to code purple category.
A wall of dense wildfire smoke will arrive by noon.
— Visibilities below 3 miles
— You’ll taste the smoke
— Your eyes will stingEVERYONE should avoid the outdoors. pic.twitter.com/JrEce3vLFV
— Matthew Cappucci (@MatthewCappucci) June 7, 2023
New York City – here comes the worst smoke. Expect visibilities to drop.
Binghamton is at 1 mile. Poughkeepsie is at 2.5 miles, Scranton, Penn. at 1.25 and Mt. Pocono at 1 mile.
Shut the window AC units if possible.
Expect stinging eyes/sore throats. Bad to breath in. #NYC pic.twitter.com/ASufwChyhl
— Matthew Cappucci (@MatthewCappucci) June 7, 2023
Wildfire smoke plume will spread through Philadelphia and New York City by this evening likely lowering visibility to under 2 miles. 🔥
Evening will be darker than normal before sunset –> be careful traveling on roads. 🚗⚠️ pic.twitter.com/oaYaqH9yZ1
— Ryan Maue (@RyanMaue) June 7, 2023
The advisory is in effect until 11:59 p.m. Eastern.
Several other areas of the country are also experiencing decreased air quality due to the smoke, spanning from New Hampshire to South Carolina. According to NBC News, “about 98 million people in parts of 18 states” are under air quality alerts:
New York City ranked second and Detroit third among major cities for the worst air quality worldwide around 1 a.m. ET today, according to IQAir, a Swiss air monitoring company.
LIVE UPDATES: Canadian wildfire smoke blankets Eastern U.S.
• 98 million in 18 states under air quality alerts
• NYC and Detroit rank second, third for worst air quality worldwide
• NYC’s fine particulate matter concentration 14.5x over WHO guideline https://t.co/tRGSasZ8gi pic.twitter.com/cpBeOMuVSD
— NBC News (@NBCNews) June 7, 2023
If your city is under an air quality alert, STAY INSIDE!
We're LIVE with more tips for staying safe amid the Canadian wildfire smoke infiltrating the U.S. pic.twitter.com/aIIj6OoI5z
— The Weather Channel (@weatherchannel) June 7, 2023
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