Figure 1.
Plastic fibres retrieved from (left) Guanabara Bay, Brazil; (right) the drum of a washing machine in a UK household; the pen tip is around 0.2 mm across.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.