this post was submitted on 19 Jan 2024
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Ultraviolet light can kill almost all the viruses in a room. Why isn’t it everywhere?::Can special lightbulbs end the next pandemic before it starts?

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[–] [email protected] 3 points 10 months ago

This is the best summary I could come up with:


Ultraviolet retained a small coterie of enthusiasts over the ensuing decades, focused narrowly on preventing transmission of tuberculosis — which has no reliably effective vaccine for adults — in its remaining hotbeds, like homeless shelters.

The biggest test it received, the Tuberculosis Ultraviolet Shelter Study of 1997-2004, demonstrated that “upper room” UV, in which UV-emitting lamps are placed at least 6.9 feet above the floor where they can disinfect air without harming humans, was safe.

It wasn’t — detective work from scholars including Linsey Marr, Jose-Luis Jimenez, and Katherine Randall in the middle of the pandemic determined that this conclusion was based on a misinterpretation of the Wellses’ research that had somehow persisted for decades in the medical profession.

“This is the most difficult talk I’ve had to give in my career,” Jose-Luis Jimenez, a distinguished professor of chemistry at the University of Colorado, told the audience at the first International Congress on Far-UVC Science and Technology this past June.

But 2020 was also an unusually brutal year for airborne disease: 49,783 Americans died from influenza in 2019, for instance (and none from Covid); 1 percent of that number is about 500 people, which starts to feel comparable to the air pollution cost Jimenez identifies.

Jimenez favors using UV in very high-risk locations, such as hospitals, but worries that construction companies, schools, malls, and the like will seize on the potential of far-UV as an excuse not to invest in proper ventilation and filtration, leaving us with the ugly trade-off he identifies.


The original article contains 4,104 words, the summary contains 252 words. Saved 94%. I'm a bot and I'm open source!

[–] [email protected] 3 points 10 months ago (1 children)

can it kill Tardigrades though?

[–] [email protected] 2 points 10 months ago

I'm pretty sure nothing can kill tardigrades.

[–] [email protected] 3 points 10 months ago
[–] [email protected] 3 points 10 months ago (2 children)

The issue with stuff that kills everything is that... Well it kills everything.

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[–] [email protected] 3 points 10 months ago (1 children)

I could see UV light also causing plastics to oxidize and become brittle much faster, because they might not be made for that kind of exposure. So using UV light might mean having to replace a lot of plastic things too.

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