What part of "smaller than" was difficult to parse?
Microplastics can be defined as < 5mm (e.g. EPA uses that definition), doesn't mean the larger ones are in the bloodstream, or even less so, the brain.
But such "sizable" ones in the environment can and are be broken down, digested, shed smaller micro- and nanoplastics by the loads, and so on.
Microplastics can be defined as < 5mm (e.g. EPA uses that definition), doesn't mean the larger ones are in the bloodstream, or even less so, the brain.
But such "sizable" ones in the environment can and are be broken down, digested, shed smaller micro- and nanoplastics by the loads, and so on.