Figure 2.
Number of publications detailing the quantification and characterisation of microplastics in freshwaters and estuaries per year. For 2019, only data up to April are included in this review.
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.