BPA in paper receipts / thermal paper

The risky chemical lurking in your wallet / New research finds that the BPA in cash register receipts can be absorbed through skin. (article from 2014)

Explainer: Store receipts and BPA (from 2017)

“When people talk about polycarbonate bottles, they talk about nanogram quantities of BPA [leaching out],” Warner observed back around 2009. A nanogram is a billionth of a gram. “The average cash register receipt that's out there and uses the BPA technology will have 60 to 100 milligrams of free BPA,” he reported several years back. That’s a million times more than what ends up in a bottle. (By free, he explained, it’s not bound into a polymer, like the BPA in a bottle. The individual molecules are loose and ready for uptake.)

Is BPA on Thermal Paper A Health Risk? - includes tips on reducing exposure. Yikes... "Quickly wash your hands after touching a receipt. Scrub with soap and water. If you wait longer than four minutes, it’s too late."

BPA in store receipts, Kroger

I went to Kroger today, and the self-checkout had an option for no receipt (which I selected). There was no option for an emailed receipt. So after getting home, I logged into my Kroger account (based on the Kroger card) to check, and it has a "My Purchases" page. It lists each time I've shopped there with my card, listing everything purchased, along with the prices and even pictures of the items. Pretty neat. I hadn't noticed that the last time I logged in, when I was checking out the digital coupons which they now advertise sometimes on the shelves.

In 2011, Kroger phased out BPA from their receipts as well as their store-brand cans:
https://www.thekrogerco.com/wp-content/uploads/2017/08/Statement-BPA.pdf

But they switched to BPS in the receipts, which is just as bad:
https://www.ecocenter.org/healthy-stuff/reports/receipt-paper-study-2018

As of 2016, 62% of their store-brand cans still had BPA:
https://saferchemicals.org/retailers/kroger/