Skip to main content

New York Was the World's Third Most Polluted City Yesterday. We Kept Every Window Shut.


A city skyline swallowed by wildfire haze — this was New York yesterday.



Yesterday we kept every window in the house closed. All day. It was over 90 degrees outside, so that meant surrendering to the AC — windows shut, machine humming, sky the color of weak tea. The Canadian wildfire smoke is back over New York, and at one point yesterday, New York ranked as the third most polluted major city in the world.

The numbers made it feel official. On my air quality app, the Hudson Valley hit an AQI of 165 — solidly in the red, "Unhealthy" zone. New York City sat around 121. The state expanded its air quality advisory to cover all of New York, and today is forecast to be worse: the city, the Lower Hudson Valley, and Long Island are all expected to reach "Unhealthy" levels, with temporary spikes possibly hitting "Very Unhealthy." The city has extended its emergency plan through Thursday.


Where all this smoke is coming from

More than 100 wildfires are burning in northwestern Ontario right now, part of over 800 active fires across Canada — many with little to no containment. The smoke rises into what forecasters call a smoke plume, a band of smoke so large it's visible from satellites, and the wind carries it across the Great Lakes and straight down into the Northeast.

If you've never decoded American air quality numbers: the AQI runs from 0 to 500. Up to 50 is good, up to 100 is moderate, 101–150 is unhealthy for sensitive groups — children, older adults, anyone with asthma or heart or lung conditions — and past 150 the "sensitive groups" part quietly drops off. It's just unhealthy. For everyone.

The sun through wildfire smoke — an orange ball you can stare straight at, which is exactly the problem.



The part that feels strangely familiar

Here's the thing about being Korean in New York during smoke season: we've trained for this. Anyone who's lived through a Seoul spring knows the drill — fine dust season, yellow dust from the Gobi, the daily ritual of checking an air quality app before deciding whether to open a window. Masks in the drawer. Air purifier in the corner. Jinguk checked the AQI yesterday morning before I'd even had coffee, out of pure muscle memory.

I honestly thought we'd left that routine behind when we moved here. Instead, every summer now, New York gives us a season of Seoul spring — same closed windows, same purifier, same instinct. Only the source changed: instead of dust blowing east from a desert, it's smoke drifting south from a boreal forest.

What I couldn't stop thinking about yesterday was my mother, and everyone's mothers — days like this hit the elderly and the sick hardest. The official advice is the same on both sides of the Pacific: limit time outdoors, wear an N95 if you have to go out, keep windows closed, run a purifier or AC. If someone in your life is older or has breathing or heart trouble, today is a good day to check on them.


This is a routine now, and I'm not happy about it

The skyline is still back there somewhere, waiting for the smoke to clear.


Most people remember the photos from June 2023, when the New York sky turned full orange. That was supposed to be the freak event. Instead it turned out to be a preview — the smoke has come back almost every summer since, reliable as fireworks in July. Heat wave plus smoke means you can't open the windows and you can't turn off the AC, and that combination is quietly becoming part of what a New York summer is.

So we've made a decision on this blog: New York weather is becoming a regular beat here. Not just the disasters — the whole strange vocabulary of American weather, one season at a time, from someone actually living inside it.

If you're in the Northeast today: how bad is the sky where you are? And for anyone who's lived in both — Korean fine dust season or American smoke season, which one would you take? Tell me in the comments, and subscribe so you don't miss the next one.



Tags: Canadian wildfire smoke, New York air quality, AQI explained, air quality alert, New York weather, Korean fine dust, cross-cultural life, summer 2026

Comments

Popular posts from this blog

What Is a "Bracket" Anyway? — A World Cup Guide for People Like My Husband

2026 FIFA World Cup — the stadium energy is real Last night, my husband Jinguk watched Korea get eliminated from the World Cup and said absolutely nothing for about twenty minutes. Then he looked at me and said: "What even is a bracket?" He'd been seeing it all over Twitter. Fox Sports, ESPN, every American sports account posting about "the bracket." He knew what 대진표 meant — the matchup chart, the tournament draw — but "bracket" threw him. This is the thing about living with a Korean man in New York for fifteen years. I am constantly in translation mode. Not just language — *context*. The word "bracket" has a whole American backstory he's never needed before, and suddenly it matters because this is the World Cup and it's happening twelve minutes from where we live. So I explained it to him. And now I'm going to explain it here. --- Where the Word "Bracket" Comes From A bracket is, originally, an L-shaped support. The kin...

Mbappé Scored Twice, Olise Set Up Everything, and I Cannot Stop Thinking He Looks Like My Nephew

MetLife Stadium, packed with blue, white, and red. I need to get something off my chest before we talk about the actual match: Kylian Mbappé looks exactly like my nephew Aaron. Exactly. Even Jinguk agrees. Google Mbappé and put them side by side and get back to me. My nephew Aaron Okay. Now the soccer. France 3, Sweden 0 — and Two Records Fell in the Process France dismantled Sweden 3-0 at MetLife Stadium in New Jersey to advance to the Round of 16. On paper that's a comfortable win. In practice, two individual performances made it worth staying up for. The crowd knew what they were watching. Mbappé scored twice — a brace , in soccer terms, meaning two goals by one player in a single match. That brings his career World Cup total to 18 goals, one behind Lionel Messi's all-time record of 19. He's also tied Messi's goal count for this specific tournament (6 apiece), which reignites the Golden Boot conversation — the award given to the tournament's top ...

Croatia Scored the Equalizer That Would've Saved Their World Cup — Then a Sensor Inside the Ball Took It Away

2026 FIFA World Cup — when millimeters decide everything.  (Photo: Unsplash) We were watching Portugal vs Croatia when it happened. Round of 32. Deep stoppage time — the 103rd minute, well past regulation. Portugal was up 2-1. Croatia needed one more goal to force extra time. Then Josko Gvardiol tapped one in at the back post. 2-2. The stadium in Toronto exploded. Croatian players sprinted toward the corner flag. Jinguk stood up from the couch. Then the referee jogged to the monitor. We sat back down. But this time it wasn't a camera measuring a shoulder — it was the ball itself. "Offside," the call came back. Goal disallowed. Not because a player's foot was a millimeter too far forward. Because the ball, somehow, remembered being touched. I had to ask Jinguk to explain that one from the beginning. What Offside Actually Is Here's the thing about offside: everyone who watches soccer knows it exists, but almost no one can explain it clearly on the ...