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.
Redox and dissolved oxygen (DO) profile from the 6th day of incubation with supplemental Fe. The oxic/anoxic transition occurred between 40 and 50 mm below the surface of the microcosm, as can also be seen in the transition from clear to reddish in the photograph. SHE, standard hydrogen electrode.
