3 ms·
They can get smaller than that: https://en.wikipedia.org/wiki/Microplastics#Nanoplastics https://en.wikipedia.org/wiki/Microplastics#Nanoplastics
by robonerd 4y ago
They can get smaller than that: https://en.wikipedia.org/wiki/Microplastics#Nanoplastics https://en.wikipedia.org/wiki/Microplastics#Nanoplastics