Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Climate

The East Coast Has Been Smokier Than the West Coast This Year

The AQI is dropping in New York City and Boston ... again.

Nova Scotia.
Heatmap Illustration/Getty Images

One thing New Yorkers could always reliably lord over urban Californians was our air. No, our city isn’t perfect — we manage our trash by piling it on the curb and have this pesky thing called “winter” — but at least in recent years our metro area beat San Francisco, Sacramento, and smoggy Los Angeles when it came to the particulates we inhale.

It brings me no joy to report, then, that this spring, tides have turned. Or at least the winds have. East Coasters have evidently inhaled more smoke than most Californians in 2023 due to a quiet start to the wildfire season out West and an explosive start to the one upwind of us in Alberta, Saskatchewan, and now Nova Scotia.

Here’s what the historic AQI has looked like in New York since late April (the yellow spikes mark smoky days):

The historic air quality graph for New York City in spring 2023.IQAir

And here’s what it’s looked like in Boston:

The historic air quality graph for Boston in spring 2023.IQAir

By comparison, here is San Francisco:

The historic air quality graph for San Francisco in spring 2023.IQAir

And Sacramento (note the AQI scale here has changed on the left to out of 50):

The historic air quality graph for Sacramento in spring 2023.IQAir

Though the air quality in Los Angeles has been significantly worse than the AQI in New York or Boston this spring, the yellow “moderate” AQI columns below overlap with a period of heavy urban pollution, rather than wildfire smoke. The yellow columns on the East Coast AQI charts, by contrast, match periods when wildfire smoke blew in from Canada.

The historic air quality graph for L.A. in spring 2023.IQAir

New Yorkers might be surprised to hear they’ve experienced more smoked-tinted sunrises and sunsets this year than Californians, but it checks out: There have been no major (more than 1,000 acres) fires in California yet in 2023. While that might seem unusual, it isn’t; what is unusual are the years like 2021, when the season started in early spring. But 2023 is so far looking to be an average year for California wildfires, which means large burns and regional smoke pollution aren’t expected in the Golden State until late summer and early fall (of course, an El Niño could throw all of this into question).

Meanwhile, in Canada, it is fire season — and it’s been an especially bad one. Almost 5 million acres have already burned, with Alberta on track to have its worst fire year ever. Though smoke from the Canadian fires has blown into a number of northern U.S. states, including Washington and Montana, the jet stream generally carries air east, with some particulate matter making it as far as Boston and New York. (Winds have likewise prevented Canadian wildfire smoke from making it as far southwest as California, hence the unexpected smoke disparity). Over the weekend, a new fire also started in Nova Scotia, causing some 16,000 evacuations around Halifax; the wind has blown much of that smoke southwest, with residents of Connecticut and Massachusetts reporting on Tuesday that they could smell and even taste the smoke.


The smoke from Canada is also, of course, causing the air quality across the East Coast to plunge. This is not in and of itself a rare occurrence: In 2021, smoke from fires in California likewise caused New York City to experience its worst AQI in 15 years.

East Coast residents may nevertheless feel — incorrectly — that they’re isolated from the dangers of wildfires. In truth, roughly three-quarters of smoke-related asthma cases and deaths occur east of the Rocky Mountains, one study found, due to both population density and wind patterns. Another pre-print study by Stanford researchers that was recently referenced by David Wallace-Wells in The New York Times found similarly that 60 percent of the smoke impact from U.S. wildfires occurs in a different state than the one where the fire is actually burning. Separately, a University of Washington study found that people were 1% more likely to die from “nontraumatic” causes like a heart attack or stroke on a day when they were exposed to wildfire smoke — and 2% more likely the day after.

New Yorkers live in the superior coastal city, but we shouldn’t get too smug about our air. Thinking we’re somehow immune to the West’s smoke problems is patently false and getting falser. Besides, why should Angelenos get to have all the fun? It’s only fair that we get to obsess over our PurpleAir score, too.


Get the best of Heatmap delivered to your inbox:

* indicates required
  • Red
    Jeva Lange profile image

    Jeva Lange

    Jeva is a founding staff writer at Heatmap. Her writing has also appeared in The Week, where she formerly served as executive editor and culture critic, as well as in The New York Daily News, Vice, and Gothamist, among others. Jeva lives in New York City.

    Climate

    AM Briefing: North America Ablaze

    On the Park Fire, coastal climate resilience, and flight delays

    Wildfire Season Is Already Devastating North America
    Heatmap Illustration/Getty Images

    Current conditions: Eastern Bolivia declared an extreme weather state of emergency through the end of the year • The Chinese province of Fujian has recorded 1.6 feet of rain since Wednesday • Rain in Paris is threatening to make for a soggy Olympics opening ceremony.

    THE TOP FIVE

    1. Huge wildfires burn in Canada, California, Oregon

    Massive wildfires are burning in western states and in Canada, sending plumes of smoke fanning out across the U.S. Triple-digit heat has fueled the fire conditions, but some cooler weather is expected over the weekend.

    Keep reading...Show less
    Yellow
    Politics

    Trump Is Onto Something About the Green New Deal

    It’s the law in everything but name.

    Biden pointing at the Earth.
    Illustration by Simon Abranowicz

    “They’ve spent trillions of dollars on things having to do with the Green New Scam. It’s a scam,” said Donald Trump in his recent convention speech. His running mate J.D. Vance echoed the sentiment, saying in his speech that the country needs “a leader who rejects Joe Biden and Kamala Harris’s Green New Scam.”

    To get the reference, you would have had to understand that they were talking about the Green New Deal — which most Americans probably recall dimly, if at all — and have some sense of both what was in it and why you shouldn’t like it. Neither Trump nor Vance explained or elaborated; it was one of many attacks at the Republican convention that brought cheers from the delegates but were likely all but incomprehensible to voters who aren’t deeply versed in conservative memes and boogeymen.

    Keep reading...Show less
    Blue
    A person in a tie.
    Illustration by Simon Abranowicz

    Plenty has changed in the race for the U.S. presidency over the past week. One thing that hasn’t: Gobs of public and private funding for climate tech are still on the line. If Republicans regain the White House and Senate, tax credits and other programs in the Inflation Reduction Act will become an easy target for legislators looking to burnish their cost-cutting (and lib-owning) reputations. The effects of key provisions getting either completely tossed or seriously amended would assuredly ripple out to the private sector.

    You would think the possible impending loss of a huge source of funding for clean technologies would make venture capitalists worry about the future of their business model. And indeed, they are worried — at least in theory. None of the clean tech investors I’ve spoken with over the past few weeks told me that a Republican administration would affect the way their firm invests — not Lowercarbon Capital, not Breakthrough Energy Ventures, not Khosla Ventures, or any of the VCs with uplifting verbs: Galvanize Climate Solutions, Generate Capital, and Energize Capital.

    Keep reading...Show less