Airport security trays are dirtier than airport toilets, new study finds

Self-cleaning trays may be on the horizon across the world.

  • Airport security trays carry pathogens that can cause respiratory illnesses.
  • A recent study in Helsinki confirms that TSA security check points are the most-likely place to "catch something."
  • In light of the research, airport trays might eventually be replaced with self-cleaning ones.

This isn't exactly a case of scrolling through TSA's Instagram account to see what sort of things someone tried to take through airport security — be it a chainsaw or a zombie-like monster featured in The Texas Chainsaw Massacre 2 — but it's certainly something that can grab the attention, even if this isn't your first time reading about it. An article published in BMC Infectious Diseases at the end of August disclosed a concerning finding regarding the plastic trays used in TSA checks. They carried influenza, the human corona virus, rhino virus, and other illness-prompting pathogens.

The researchers took samples after peak hours, and looked at 90 surfaces at the airport in Helsinki, where roughly 12 million people pass through every year. They took eight samples from the trays over the course of three weeks. When the results came back, they found that half of the samples carried some kind of respiratory disease. In comparison, none of the samples from the toilets at the airport returned anything so dire.

Lest we forgot: toilet seats aren't typically that dirty. If anything, the floor of a bathroom is probably dirtier than the seat itself. As a matter of fact, the likelihood of getting a disease from a toilet seat, according to William Dampier explains over at Gizmodo, is "very small." It should also be noted that the viral loads on the trays themselves, researchers discussed about the study, were probably not enough to infect an individual.

Nevertheless, the new study continues a trend of previous studies that security checkpoint lines are the most likely place where one could catch something — if one does ends up catching something. If studies like this continue to confirm what we're slowly realizing, then we may see self-cleaning trays spread across the world.

Self-cleaning trays were first deployed at the Akron-Canton Airport, per reports, using nanotechnology — the handles and the lining of the trays are cleaned every time the trays are exposed to light. Every 90 days, the handles and lining are replaced, and the trays are good for 90 more days after that. This new measure suggests that the issue of dirty trays may already be getting better.

All this said, it's still probably not a bad idea to wash your hands after going through the airport security checkpoint.

Ideology drives us apart. Neuroscience can bring us back together.

A guide to making difficult conversations possible—and peaceful—in an increasingly polarized nation.

  • How can we reach out to people on the other side of the divide? Get to know the other person as a human being before you get to know them as a set of tribal political beliefs, says Sarah Ruger. Don't launch straight into the difficult topics—connect on a more basic level first.
  • To bond, use icebreakers backed by neuroscience and psychology: Share a meal, watch some comedy, see awe-inspiring art, go on a tough hike together—sharing tribulation helps break down some of the mental barriers we have between us. Then, get down to talking, putting your humanity before your ideology.
  • The Charles Koch Foundation is committed to understanding what drives intolerance and the best ways to cure it. The foundation supports interdisciplinary research to overcome intolerance, new models for peaceful interactions, and experiments that can heal fractured communities. For more information, visit

How to split the USA into two countries: Red and Blue

Progressive America would be half as big, but twice as populated as its conservative twin.

Image: Dicken Schrader
Strange Maps
  • America's two political tribes have consolidated into 'red' and 'blue' nations, with seemingly irreconcilable differences.
  • Perhaps the best way to stop the infighting is to go for a divorce and give the two nations a country each
  • Based on the UN's partition plan for Israel/Palestine, this proposal provides territorial contiguity and sea access to both 'red' and 'blue' America
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Why a federal judge ordered White House to restore Jim Acosta's press badge

A federal judge ruled that the Trump administration likely violated the reporter's Fifth Amendment rights when it stripped his press credentials earlier this month.

WASHINGTON, DC - NOVEMBER 16: CNN chief White House correspondent Jim Acosta (R) returns to the White House with CNN Washington bureau chief Sam Feist after Federal judge Timothy J. Kelly ordered the White House to reinstate his press pass November 16, 2018 in Washington, DC. CNN has filed a lawsuit against the White House after Acosta's press pass was revoked after a dispute involving a news conference last week. (Photo by Alex Wong/Getty Images)
Politics & Current Affairs
  • Acosta will be allowed to return to the White House on Friday.
  • The judge described the ruling as narrow, and didn't rule one way or the other on violations of the First Amendment.
  • The case is still open, and the administration may choose to appeal the ruling.
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