That chemical has been in use for a hundred years.

Scary

The chemical isn't mentioned in the article. Seems a significant oversight.
My educated guess is perchlorethylene. (C2Cl4)
It's been the most commonly used compound in dry cleaning for years. It was thecsupposedly safer alternative to carbon tetrachloride.
Thing is, polychlorinated solvents have been known for decades to be carcinogenic & to cause organ problems.
In my early lab days I used PCE and we never used it outside of a vapor hood & never handled it without gloves. And that was nearly 50 years ago!
Newer processes using silicone esters & even supercritical carbon dioxide are being used in dry cleaning because of the well-established health & environmental concerns.
This article is important but hardly news.

Perchloroethylene

I'm a little surprised this is reported as something new.

Had the same thought.
Someone must have a new product to sell

And associated venting. While CO2 is not inherently toxic at low level (we're breathing over 400ppm every minute of every day) a CO2 dominant atmosphere is an asphyxiation hazard.
The equipment is pretty capital intensive, but the pressurized CO2 itself is pretty cheap.
Maybe this study is trying to encourage the conversion to the safer alternative.

Polyhalogenated organics have been suspected of causing organ damage since I was in college & I got my BS 49 years ago.
It was standard lab practice to only use chlorinated solvents in a hood.
We even moved a potentiometer titration system to a hood to avoid exposure to the solvent vapors.
That nobody did these studies decades ago is very surprising.
Oh, and someone I missed that identification in the article. Not sure how; I went through it twice.