 Image Number K10851-1 |
Technician Chris Clegg prepares samples for nitrogen gas analysis to estimate denitrification rates. During denitrification, microbes remove nitrate from shallow groundwater.
Photo by Peggy Greb.
An official website of the United States government
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.