https://www.theguardian.com/environment/2019/jun/05/people-eat-at-least-50000-plastic-particles-a-year-study-finds
if you look at the picture of the ret bits among the salt crystals you see exactly the sort of colourful filaments that showed up under the skin - and often in the tissues - of "delusional" persons who experienced Morgellons disease (which is being studied now)
these filaments and bits are generally thought of as "fabric-like".
well how many plastic-contaminated fabrics are there?
we know nothing much, yet, do we.