Fig 1.
Mean copy number and abundance of intI1, sul1, and sul2 genes in river water (a, b) and sediment (c, d) sampled at upstream, city, and downstream sites
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.