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.
Principal Component Analysis of congener profiles of sediment (n=20) and Aroclors (n=5). The first 3 principal components explained 84% of the variance. Samples i and ii are different from the average sediment profile and have lower concentrations of OH-PCBs than the other samples.
