debris

His neighbors were still ripping out debris. But Mr. Ryan, a retired bricklayer who built his house by hand 30 years ago only to lose most of it to Hurricane Sandy, was already hard at work rebuilding.

[The researchers] noticed many of their pieces of [plastic marine] debris sported surface pits around two microns across. Such pits are about the size of a bacterial cell. Closer examination showed that some of these pits did, indeed, contain bacteria, […].