Do we even have an accurate method for actually detecting micro plastics in tissue/blood? Didn't I read somewhere that it's very difficult to do because plastic is basically inert and is really hard to detect?

>“Our next step is to expose large animals to microplastics and nanoplastics labelled with radiotracers or iron, image them by PET and MRI, and look again after apheresis,” Dr Borenstein said.

..mm.. looks like we do, but it may still be lethal for.. large animals.