The smaller the pieces get, the more of them (for the same mass). So a title like this makes it hard to gauge of that's a lot of plastic or the problem is that

The smaller the pieces get, the more of them (for the same mass). So a title like this makes it hard to gauge of that's a lot of plastic or the problem is that the pieces are very small and whether that's the reason it's a problem (presumably because they pass through some membranes?).