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This is why we donate blood.
This would be a powerful Red Cross ad.
Lower your microplastics count. Donate blood so you can make more.
I wonder if they actually filter the blood that people donate. I know they test it, but it would be cool if they filtered it as well for various crap.
Could they even filter microplastics without just getting rid of all of the red blood cells? If they were big enough to be filtered without catching blood cells we would probably be seeing way more people getting actively and catasteophically screwed by them.
Here's one source about the size of microplastics:
The researchers couldn't give a precise breakdown of the particle sizes due to the limitations of the testing methods. It's safe to presume, however, that smaller particles closer to the 700 nanometer limit of the analysis would be easier for the body to take in than larger particles exceeding 100 micrometers.
And red blood cells are 6.2–8.2μm. So I wonder if some kind of sieve could filter anything smaller than 5μm or so. Then again, there's probably a bunch of other stuff in there as well, like white blood cells.
It's too bad that they're in the same range as important things...