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COVID

Whatever Happened to Toilet Plumes?

The Atlantic

www.theatlantic.com › health › archive › 2023 › 01 › covid-virus-spread-toilets-public-bathrooms › 672846

In the dark early days of the pandemic, when we knew almost nothing and feared almost everything, there was a moment when people became very, very worried about toilets. More specifically, they were worried about the possibility that the cloud of particles toilets spew into the air when flushed—known in the scientific literature as “toilet plume”—might be a significant vector of COVID transmission. Because the coronavirus can be found in human excrement, “flushing the toilet may fling coronavirus aerosols all over,” The New York Times warned in June 2020. Every so often in the years since, the occasional PSA from a scientist or public-health expert has renewed the scatological panic.

In retrospect, so much of what we thought we knew in those early days was wrong. Lysoling our groceries turned out to not be helpful. Masking turned out to be very helpful. Hand-washing, though still important, was not all it was cracked up to be, and herd immunity, in the end, was a mirage. As the country shifts into post-pandemic life and takes stock of the past three years, it’s worth asking: What really was the deal with toilet plume?

The short answer is that our fears have not been substantiated, but they weren’t entirely overblown either. Scientists have been studying toilet plume for decades. They’ve found that plumes vary in magnitude depending on the type of toilet and flush mechanism. Flush energy plays a role too: The greater it is, the larger the plume. Closing the lid (if the toilet has one) helps a great deal, though even that cannot completely eliminate toilet plume—particles can still escape through the gap between the seat and the lid.

Whatever the specifics, the main conclusion from years of research preceding the pandemic has been consistent and disgusting: “Flush toilets produce substantial quantities of toilet plume aerosol capable of entraining microorganisms at least as large as bacteria … These bioaerosols may remain viable in the air for extended periods and travel with air currents,” scientists at the CDC and the University of Oklahoma College of Public Health wrote in a 2013 review paper titled “Lifting the Lid on Toilet Plume Aerosol.” In other words, when you flush a toilet, an unsettling amount of the contents go up rather than down.

Knowing this is one thing; seeing it is another. Traditionally, scientists have measured toilet plume with either a particle counter or, in at least one case, “a computational model of an idealized toilet.” But in a new study published last month, researchers at the University of Colorado at Boulder took things a step further, using bright-green lasers to render visible what usually, blessedly, is not. John Crimaldi, an engineering professor and a co-author of the study, who has spent 25 years using lasers to illuminate invisible phenomena, told me that he and his colleagues went into the experiment fully expecting to see something. Even so, they were “completely caught off guard” by the results. The plume was bigger, faster, and more energetic than they’d anticipated—“like an eruption,” Crimaldi said, or, as he and his colleagues put it in their paper, a “strong chaotic jet.”

Within eight seconds, the resulting cloud of aerosols shoots nearly five feet above the toilet bowl—that is, more than six feet above the ground. That is: straight into your face. After the initial burst, the plume continues to rise until it hits the ceiling, and then it wafts outward. It meets a wall and runs along it. Before long, it fills the room. Once that happens, it hangs around for a while. “You can sort of extrapolate in your own mind to walking into a public restroom in an airport that has 20 toilet stalls, all of them flushing every couple minutes,” Crimaldi said. Not a pleasant thought.

The question, then, is not so much whether toilet plume happens—like it or not, it clearly does—as whether it presents a legitimate transmission risk of COVID or anything else. This part is not so clear. The 2013 review paper identified studies of the original SARS virus as “among the most compelling indicators of the potential for toilet plume to cause airborne disease transmission.” (The authors also noted, in a dry aside, that although SARS was “not presently a common disease, it has demonstrated its potential for explosive spread and high mortality.”) The one such study the authors discuss explicitly is a report on the 2003 outbreak in Hong Kong’s Amoy Gardens apartment complex. That study, though, is far from conclusive, Mark Sobsey, an environmental microbiologist at the University of North Carolina at Chapel Hill, told me. The researchers didn’t rule out other modes of transmission, nor did they attempt to culture live virus from the fecal matter—a far more reliable indicator of infectiousness than mere detection.

Beyond that, Sobsey said, there is little evidence that toilet plumes spread SARS or COVID-19. In his own review, published in December 2021, Sobsey found “no documented evidence” of viral transmission via fecal matter. This, at least, seems to track with the three years of pandemic experience we’ve all now endured. Although we can’t easily prove that bathrooms don’t play a significant role in spreading COVID-19, we haven’t seen any glaring indications that they do. And anyway, the coronavirus has found plenty of other awful ways to spread.

Just because toilet plume doesn’t seem to be a vector of COVID transmission, though, doesn’t mean you can forget about it. Gastrointestinal viruses such as norovirus, Sobsey told me, present a more serious risk of transmission via toilet plume, because they are known to spread via fecal matter. The only real solutions are structural. Improved ventilation would keep aerosolized waste from building up in the air, and germicidal lighting, though the technology is still being developed, could potentially disinfect what remains. Neither, however, would stop the plume in the first place. To do that, you would need to change the toilet itself: In order to create a smoother and thus better-contained flush, you could change the geometry of the bowl, the way the water enters and exits, or any number of other variables. Toilet manufacturers could also, you know, stop producing lidless toilets.

But none of that will save you the next time you find yourself staring into a toilet’s blank maw. Crimaldi suggests wearing a mask in public bathrooms to protect against not just the plume created when you flush but also the plumes left by the person who used the bathroom before you, the person who used it before them, and so on. You don’t need to have any great affection for masking as a public-health intervention to consider donning one for a few minutes to avoid literally breathing in shit. Sobsey offered another bit of unconventional bathroom-hygiene advice, which he acknowledged can only do so much to protect you: If you find yourself in a public restroom with a lidless toilet, he said, consider washing your hands before you flush. Then “hold your breath, flush the toilet, and leave.”

The GOP Is a Circus, Not a Caucus

The Atlantic

www.theatlantic.com › newsletters › archive › 2023 › 01 › the-gop-is-a-circus-not-a-caucus › 672843

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Kevin McCarthy has begun his job as speaker by servicing the demands of the most extreme—and weirdest—members who supported him, thus handing the People’s House to the Clown Caucus.

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The Ringmaster

Now controlled by its most unhinged members, the Republican Party has returned to power in the People’s House. Speaker Kevin McCarthy, the ringmaster of this circus, is happily paying off his debts by engaging in petty payback, conjuring up inane committees, threatening to crash the U.S. economy, and protecting a walking monument to fraud named George Santos, who may or may not actually be named “George Santos.”

In the enduring words of Emerson, Lake & Palmer: Welcome back, my friends, to the show that never ends.

Politics, in Washington or anywhere else, is about deals. No one should have expected McCarthy to make his way to the gavel without signing a few ugly promissory notes along the way. Sometimes, friends are betrayed and enemies are elevated; an important project can end up taking a back seat to a boondoggle. Just ask Representative Vern Buchanan of Florida, who got pushed out of the chairmanship of Ways and Means in favor of Jason Smith of Missouri, a choice preferred by the MAGA caucus. “You fucked me,” he reportedly said to at McCarthy on the floor of the House. “I know it was you, you whipped against me.” Buchanan, a source on the House floor told Tara Palmeri at Puck, was so angry that the speaker’s security people were about to step in. (McCarthy’s office denies that this happened.)

It’s one thing to pay political debts, even the kind that McCarthy accepted despite their steep and humiliating vig. It’s another to hand off control of crucial issues to a claque of clowns who have no idea what they’re doing and are willing to harm the national security of the United States as long as it suits their political purposes.

Let us leave aside the removal of Adam Schiff and Eric Swalwell from the Intelligence Committee. The republic will not rise or fall based on such things, and if McCarthy wants to engage in snippy stoogery to ingratiate himself with the MAGA caucus and soothe Donald Trump’s hurt feelings, it is within his power to do so. In his letter to Democratic Leader Hakeem Jeffries, the speaker claimed his decision was all about “integrity.” This is not just the death of irony; it is a North Korean–style, firing-squad-by-anti-aircraft-gun execution of irony. Worse, McCarthy even has the right to channel, as he did, Joseph McCarthy, and smear Swalwell by alluding to derogatory information that the FBI supposedly has about him. It might not be honorable or professional, but he can do it.

McCarthy’s shuffle of the Intelligence Committee pales in comparison to the creation of two new committees, both of which were part of the Filene’s Basement clearance of the new speaker’s political soul. One of them, on the origins of the coronavirus pandemic, is a continuation of the Republican assault on science that predated Trump but reached new heights with the former president’s disjointed gibbering about bleach injections. The committee will include the conspiracy theorist and McCarthy’s new best friend Marjorie Taylor Greene, and Ronny Jackson of Texas, the former White House physician who assured us in 2018 that Trump only weighed 239 pounds and was in astoundingly good health.

The COVID committee is unlikely to move the needle (if you’ll pardon the expression) on public health. No one’s mind will be changed if Jackson and Tucker Carlson bloviate to each other about things neither of them really believes. Most of the damage from such a committee will likely be concentrated among the vaccine refusers, who already seem determined to get sick and die to make a political point.

The “weaponization” committee is worse, and likely to do far more damage to the United States, because it is starting from the premise that the machinery of the United States government—law enforcement, the intelligence community, and federal agencies—has been turned against the average American citizen. Jim Jordan, who stands out even in this GOP for his partisan recklessness, will serve as chair. The committee will include members whom I think of as the “You-Know-Better-Than-This Caucus”: people with top-flight educations and enough experience to know that Jordan is a crank, but who nevertheless will support attacks on American institutions if that’s what it takes to avoid being sent back home to live among their constituents. Two standouts here are Thomas Massie (an MIT graduate who apparently majored in alchemy and astrology), and the ever-reliable Elise Stefanik (Harvard), whose political hemoglobin is now composed of equal parts cynicism and antifreeze.

The committee will include other monuments to probity, such as Chip Roy; Dan Bishop, who has claimed that the 2020 election was rigged; Harriet Hageman, the woman who defeated Liz Cheney in Wyoming; and Kat Cammack of Florida, who alleged that Democrats were drinking on the House floor during the speakership fight. All of them will have access to highly sensitive information from across the U.S. government.

Jordan and his posse are styling themselves as a new Church Committee, the 1975 investigation into the Cold War misdeeds of American intelligence organizations headed by Idaho Senator Frank Church. This dishonors Church, whose committee uncovered genuinely shocking abuses by agencies that had for too long escaped oversight during the early days of the struggle with the Soviet Union. Church himself was a patriot, unlike some of the charlatans on this new committee, but even Church’s investigation did at least some damage with its revelations, and some of the reforms (especially the move away from relying on human intelligence) undertaken later based in part on its findings were unwise. In any case, his fame was short-lived: He was defeated for reelection in 1980 and died in 1984. (Full disclosure: I spoke at a conference held in Church’s honor many years ago and met with his widow.)

The Church Committee was, in its day, a necessary walk across the hot coals for Americans who had invested too much power and trust in the executive branch. I suspect that the Jordan committee will not look to uncover abuses, but rather to portray any government actions that it does not like as abuses, especially the investigations into Trump. It will be the Church Committee turned on its head, as members of Congress seek to protect a lawless president by destroying the agencies that stand between our democracy and his ambitions.

Kevin McCarthy will be fine with all of it, as long as he gets to wear the top hat and red tails while indulging in the fantasy that he is in control of the clowns and wild animals, and not the other way around.

Related:

Speaker in name only Why Kevin McCarthy can’t lose George Santos

Today’s News

President Joe Biden announced that he would send M1 Abrams tanks to Ukraine, and Germany announced that it would send an initial shipment of 14 Leopard 2 tanks. The arraignment of the suspect in the Half Moon Bay, California, mass shooting was postponed until Feb. 16. School officials were warned on three separate occasions that a 6-year-old who later shot his first-grade teacher in Virginia had a gun or had made threats, according to an attorney for the teacher.

Dispatches

Up for Debate: Public outrage hasn’t improved policing, Conor Friedersdorf argues.

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Evening Read

Getty; The Atlantic

Why the French Want to Stop Working

By Pamela Druckerman

If you want to understand why the French overwhelmingly oppose raising their official retirement age from 62 to 64, you could start by looking at last week’s enormous street protest in Paris.

“Retirement before arthritis” read one handwritten sign. “Leave us time to live before we die” said another. One elderly protester was dressed ironically as “a banker” with a black top hat, bow tie, and cigar—like the Mr. Monopoly mascot of the board game. “It’s the end of the beans!” he exclaimed to the crowd, using a popular expression to mean that pension reform is the last straw.

Read the full article.

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P.S.

The Church Committee revealed outrages (including assassination plots) that today might seem like they were taken from bad spy-movie scripts. But such things were deadly serious business, as the United States moved from World War II into the Cold War determined to do whatever it took to defeat Soviet communism. For decades, Americans romanticized spies and spying as glamorous and exciting, but in reality, espionage was a nasty business. Our British cousins knew this better than we did, which is why British spy fiction was always grittier than its American counterpart. (The James Bond novels are pretty dour, sometimes even sadistic; Hollywood cleaned them up.)

But just because we lost our innocence about spying doesn’t mean we can’t still enjoy the culture it produced back in the day. In that spirit, let me recommend to you Secret Agent, an offering on a wonderful, listener-supported San Francisco–based internet radio station called SomaFM. There are plenty of great channels on SomaFM—I especially like Left Coast 70s, which is just what it sounds like—but Secret Agent is a lot of fun, a mixture of 1960s lounge and light jazz, soundtracks, and other tidbits, with the occasional line from 007 and other spies spliced in here and there. It’s a nice throwback to the days when espionage was cool, and it’s great music for working or a get-together over martinis, which should be shaken and … well, you know.

— Tom

Isabel Fattal contributed to this newsletter.