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.
Sampling batch experiments, or microcosms, in an anaerobic chamber for study of PFAS biodegradation in the USGS Maryland-Delaware-DC Water Science Center Research Laboratory.
Public Domain.
Photo by USGS
