PFAS in cardboard

Curious what others think about using cardboard and the possiblle contamination of soil. I've read a couple articles about high levels of pfas in recycled cardboard and paper products. Now i am concerned i have contaminated the gardens with forever chemicals. I've used this method a number of times on this property for new flower gardens and last year made a veggie 50 x 50 ft garden on a hay field this way.
It works amazing to build a new garden quickly but now I'm wondering if I should use different method.
Curious on other thoughts about this issue. ☮️

https://permies.com/t/2157/concerns-cardboard-newspaper-mulch

Cardboard has always been a concern with mulch.  I try not to use it near food crops.  

For me, if it's a choice between not having a garden vs having a garden with less desirable ingredients, having a garden wins every time. The health benifits of gardening and eating fresh food outweigh the problems cardboard brings.

If you really feel like you need to use cardboard, I've read that the cardboard with weird coatings are more likely to contain PFAS and heavy metals -- bright colors, glossy anything, and plastic or wax coatings are more likely to have unpleasant elements. But I've also read that recycled cardboard is made from feedstock with all those problems, so over time it's getting harder and harder to trust any of it.

Sunflowers accumulate pfas and other chemicals. A few cover crops will pull a lot of your potential contaminants out of the soil. You can’t compost all that biomass, though. Not sure of the seeds accumulated or only the green matter

But personal gardens are WAY down on the list as sources of contamination for the human body.  Once I figure out how to not breathe the contaminants, then I’ll worry about what’s coming from my garden.

There are ways to remediate soil.  R Scott made some good suggestions.

Here are some threads that might help:

https://permies.com/t/223335/soil-comtaminated-solutions#3564075

https://permies.com/t/361920/save-clean-soil-contamination-sources